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  • 1.
    Al-Adili, Ali
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Alhassan, Erwin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Helgesson, Petter
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Jansson, Kaj
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Koning, Arjan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Nucl Res & Consultancy Grp NRG, Petten, Netherlands.
    Lantz, Mattias
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Mattera, Andrea
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Uppsala University, The Svedberg Laboratory.
    Rakopoulos, Vasileios
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Sjöstrand, Henrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Solders, Andreas
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tarrío, Diego
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Fission Activities of the Nuclear Reactions Group in Uppsala2015In: Scientific Workshop on Nuclear Fission Dynamics and the Emission of Prompt Neutrons and Gamma Rays, THEORY-3 / [ed] Franz-Josef Hambsch and Nicolae Carjan, 2015, p. 145-149Conference paper (Refereed)
    Abstract [en]

    This paper highlights some of the main activities related to fission of the nuclear reactions group at Uppsala University. The group is involved for instance in fission yield experiments at the IGISOL facility, cross-section measurements at the NFS facility, as well as fission dynamics studies at the IRMM JRC-EC. Moreover, work is ongoing on the Total Monte Carlo (TMC) methodology and on including the GEF fission code into the TALYS nuclear reaction code. Selected results from these projects are discussed.

  • 2.
    Al-Adili, Ali
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Jansson, Kaj
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Mattias, Lantz
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Solders, Andreas
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gorelov, Dmitry
    Department of Physics, FI-40014 University of Jyväskylä, Finland.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Mattera, Andrea
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Moore, Iain
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Rakopoulos, Vasileios
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Penttilä, Heikki
    Department of Physics, FI-40014 University of Jyväskylä, Finland.
    Tarrío, Diego
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Wiberg, Sara
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Stephan, Pomp
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Simulations of the fission-product stopping efficiency in IGISOL2015In: European Physical Journal A, ISSN 1434-6001, E-ISSN 1434-601X, Vol. 51, no 59, p. 1-7Article in journal (Refereed)
    Abstract [en]

    At the Jyväskylä Ion Guide Isotope Separator On-Line (IGISOL) facility, independent fission yields are measured employing the Penning-trap technique. Fission products are produced, e.g. by impinging protons on a uranium target, and are stopped in a gas-filled chamber. The products are collected by a flow of He gas and guided through a mass separator to a Penning trap, where their masses are identified. This work investigates how fission-product properties, such as mass and energy, affect the ion stopping efficiency in the gas cell. The study was performed using the Geant4 toolkit and the SRIM code. The main results show a nearly mass-independent ion stopping with regard to the wide spread of ion masses and energies, with a proper choice of uranium target thickness. Although small variations were observed, in the order of 5%, the results are within the systematic uncertainties of the simulations. To optimize the stopping efficiency while reducing the systematic errors, different experimental parameters were varied; for instance material thicknesses and He gas pressure. Different parameters influence the mass dependence and could alter the mass dependencies in the ion stopping efficiency.

  • 3.
    Al-Adili, Ali
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Jansson, Kaj
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tarrio, Diego
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hambsch, Franz-Josef
    European Commiss, Joint Res Ctr, Directorate G2, Geel, Belgium..
    Gook, Alf
    European Commiss, Joint Res Ctr, Directorate G2, Geel, Belgium..
    Oberstedt, Stephan
    European Commiss, Joint Res Ctr, Directorate G2, Geel, Belgium..
    Fregeau, Marc Olivier
    GANIL CEA DRF CNRS IN2P3, Caen, France..
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Lantz, Mattias
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Mattera, Andrea
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Rakopoulos, Vasileios
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Solders, Andreas
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Vidali, Marzio
    European Commiss, Joint Res Ctr, Directorate G2, Geel, Belgium..
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Studying fission neutrons with 2E-2v and 2E2018In: SCIENTIFIC WORKSHOP ON NUCLEAR FISSION DYNAMICS AND THE EMISSION OF PROMPT NEUTRONS AND GAMMA RAYS (THEORY-4) / [ed] Hambsch, FJ Carjan, N Rusko, I, 2018, article id UNSP 00002Conference paper (Refereed)
    Abstract [en]

    This work aims at measuring prompt-fission neutrons at different excitation energies of the nucleus. Two independent techniques, the 2E-2v and the 2E techniques, are used to map the characteristics of the mass-dependent prompt fission neutron multiplicity, 7(A), when the excitation energy is increased. The VERDI 2E-2v spectrometer is being developed at JRC-GEEL. The Fission Fragment (FF) energies are measured using two arrays of 16 silicon (Si) detectors each. The FFs velocities are obtained by time-of-flight, measured between micro-channel plates (MCP) and Si detectors. With MCPs placed on both sides of the fission source, VERDI allows for independent timing measurements for both fragments. Cf-252(sf) was measured and the present results revealed particular features of the 2E-2v technique. Dedicated simulations were also performed using the GEF code to study important aspects of the 2E-2v technique. Our simulations show that prompt neutron emission has a non-negligible impact on the deduced fragment data and affects also the shape of 17(A). Geometrical constraints lead to a total-kinetic energy-dependent detection efficiency. The 2E technique utilizes an ionization chamber together with two liquid scintillator detectors. Two measurements have been performed, one of Cf-252(sf) and another one of thermal-neutron induced fission in U-235(n,f). Results from Cf-252(sf) are reported here.

  • 4.
    Al-Adili, Ali
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tarrío, Diego
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hambsch, F. -J
    EC JRC Inst Reference Mat & Measurements IRMM, Geel, Belgium.
    Gook, A.
    EC JRC Inst Reference Mat & Measurements IRMM, Geel, Belgium..
    Jansson, Kaj
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Solders, Andreas
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Rakopoulos, Vasileios
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Lantz, Mattias
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Mattera, Andrea
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Oberstedt, S.
    EC JRC Inst Reference Mat & Measurements IRMM, Geel, Belgium..
    Prokofiev, Alexander V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Vidali, M.
    EC JRC Inst Reference Mat & Measurements IRMM, Geel, Belgium..
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Analysis of prompt fission neutrons in U-235(nth,f) and fission fragment distributions for the thermal neutron induced fission of U-2342016In: CNR*15 - 5th International Workshop On Compound-Nuclear Reactions And Related Topics, 2016, article id 01007Conference paper (Refereed)
    Abstract [en]

    This paper presents the ongoing analysis of two fission experiments. Both projects are part of the collaboration between the nuclear reactions group at Uppsala and the JRC-IRMM. The first experiment deals with the prompt fission neutron multiplicity in the thermal neutron induced fission of U-235(n,f). The second, on the fission fragment properties in the thermal fission of U-234(n,f). The prompt fission neutron multiplicity has been measured at the JRC-IRMM using two liquid scintillators in coincidence with an ionization chamber. The first experimental campaign focused on U-235(nth,f) whereas a second experimental campaign is foreseen later for the same reaction at 5.5 MeV. The goal is to investigate how the so-called saw-tooth shape changes as a function of fragment mass and excitation energy. Some harsh experimental conditions were experienced due to the large radiation background. The solution to this will be discussed along with preliminary results. In addition, the analysis of thermal neutron induced fission of U-234(n,f) will be discussed. Currently analysis of data is ongoing, originally taken at the ILL reactor. The experiment is of particular interest since no measurement exist of the mass and energy distributions for this system at thermal energies. One main problem encountered during analysis was the huge background of U-235(nth, f). Despite the negligible isotopic traces in the sample, the cross section difference is enormous. Solution to this parasitic background will be highlighted.

  • 5.
    Al-Adili, Ali
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tarrío, Diego
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hambsch, Franz-Josef
    European Commission, Joint Research Centre, Directorate G, Geel, Belgium.
    Göök, Alf
    European Commission, Joint Research Centre, Directorate G, Geel, Belgium.
    Jansson, Kaj
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Solders, Andreas
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Rakopoulos, Vasileios
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Lantz, Mattias
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Mattera, Andrea
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Oberstedt, Stephan
    European Commission, Joint Research Centre, Directorate G, Geel, Belgium.
    Prokofiev, Alexander V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Sundén, Erik A.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Vidali, Marzio
    European Commission, Joint Research Centre, Directorate G, Geel, Belgium.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Neutron-multiplicity experiments for enhanced fission modelling2017In: EPJ Web of Conferences / [ed] Plompen, A.; Hambsch, FJ.; Schillebeeckx, P.; Mondelaers, W.; Heyse, J.; Kopecky, S.; Siegler, P.; Oberstedt, S., 2017, Vol. 146, article id 04056Conference paper (Refereed)
    Abstract [en]

    The nuclear de-excitation process of fission fragments (FF) provides fundamental information for the understanding of nuclear fission and nuclear structure in neutron-rich isotopes. The variation of the prompt-neutron multiplicity, ν(A), as a function of the incident neutron energy (En) is one of many open questions. It leads to significantly different treatments in various fission models and implies that experimental data are analyzed based on contradicting assumptions. One critical question is whether the additional excitation energy (Eexc) is manifested through an increase of ν(A) for all fragments or for the heavy ones only. A systematic investigation of ν(A) as a function of En has been initiated. Correlations between prompt-fission neutrons and fission fragments are obtained by using liquid scintillators in conjunction with a Frisch-grid ionization chamber. The proof-of-principle has been achieved on the reaction 235U(nth,f) at the Van De Graff (VdG) accelerator of the JRC-Geel using a fully digital data acquisition system. Neutrons from 252Cf(sf) were measured separately to quantify the neutron-scattering component due to surrounding shielding material and to determine the intrinsic detector efficiency. Prelimenary results on ν(A) and spectrum in correlation with FF properties are presented.

  • 6.
    Andersson, Pernilla
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Bevilacqua, Riccardo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Blomgren, Jan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hjalmarsson, Anders
    Uppsala University, The Svedberg Laboratory.
    Kolozhvari, A.
    LeColley, F. -R
    Marie, Nathalie
    Uppsala University, The Svedberg Laboratory.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Simutkin, Vasily D.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tesinsky, Milan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tippawan, U.
    An upgrade of the SCANDAL setup for measurements of elastic neutron scattering at 175 MeV2010In: Radiation Measurements, ISSN 1350-4487, E-ISSN 1879-0925, Vol. 45, no 10, p. 1142-1144Article in journal (Refereed)
    Abstract [en]

    The experimental setup SCANDAL used for measurements of the differential cross section for elastic and inelastic neutron scattering, has recently been upgraded with larger CsI scintillating detectors to enable measurements at energies up to 175 MeV. Measurements on Fe. Bi and Si have been carried out using the quasi mono-energetic neutron beam at the The Svedberg Laboratory, and data is under analysis. The experimental setup can be used for measurements on a wide range of target nuclei, including C and O, which are important for dosimetry applications. SCANDAL can also run in proton mode, for measurements of the (n,p) reaction. This paper describes the new experimental setup, and reports on its properties, such as energy resolution.

  • 7.
    Andreou, Charalambos M.
    et al.
    Cypress Semicond Inc, Cork, Ireland.;Univ Cyprus, Dept Elect & Comp Engn, CY-1678 Nicosia, Cyprus..
    Javanainen, Arto
    Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland..
    Rominski, Adrian
    Univ Cyprus, Dept Elect & Comp Engn, CY-1678 Nicosia, Cyprus..
    Virtanen, Ari
    Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland..
    Liberali, Valentino
    Univ Milan, Dept Phys, I-20122 Milan, Italy..
    Calligaro, Cristiano
    RedCat Devices, I-20142 Milan, Italy..
    Prokofiev, Alexander V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Uppsala University, The Svedberg Laboratory.
    Gerardin, Simone
    Univ Padua, Dept Informat Engn, Padua, Italy..
    Bagatin, Marta
    Univ Padua, Dept Informat Engn, Padua, Italy..
    Paccagnella, Alessandro
    Univ Padua, Dept Informat Engn, Padua, Italy..
    Gonzalez-Castano, Diego M.
    Univ Santiago de Compostela, Radiat Phys Lab, Santiago De Compostela, Spain..
    Gomez, Faustino
    Univ Santiago de Compostela, Radiat Phys Lab, Santiago De Compostela, Spain..
    Nahmad, Daniel
    Tower Semicond, R&D Dept, Migdal Haemeq, Israel..
    Georgiou, Julius
    Univ Cyprus, Dept Elect & Comp Engn, CY-1678 Nicosia, Cyprus..
    Single Event Transients and Pulse Quenching Effects in Bandgap Reference Topologies for Space Applications2016In: IEEE Transactions on Nuclear Science, ISSN 0018-9499, E-ISSN 1558-1578, Vol. 63, no 6, p. 2950-2961Article in journal (Refereed)
    Abstract [en]

    An architectural performance comparison of bandgap voltage reference variants, designed in a 0.18 mu m CMOS process, is performed with respect to single event transients. These are commonly induced in microelectronics in the space radiation environment. Heavy ion tests (Silicon, Krypton, Xenon) are used to explore the analog single-event transients and have revealed pulse quenching mechanisms in analogue circuits. The different topologies are compared, in terms of cross-section, pulse duration and pulse amplitude. The measured results, and the explanations behind the findings, reveal important guidelines for designing analog integrated circuits, which are intended for space applications. The paper includes an analysis on how pulse quenching occurs within the indispensable current mirror, which is used in every analog circuit.

  • 8.
    Andreou, Charalambos M.
    et al.
    Univ Cyprus, Dept Elect & Comp Engn, CY-1678 Nicosia, Cyprus.
    Miguel Gonzalez-Castano, Diego
    Univ Santiago de Compostela, Radiat Phys Lab, E-15705 Santiago De Compostela, Spain.
    Gerardin, Simone
    Univ Padua, Dept Informat Engn, I-35122 Padua, Italy.
    Bagatin, Marta
    Univ Padua, Dept Informat Engn, I-35122 Padua, Italy.
    Gomez Rodriguez, Faustino
    Univ Santiago de Compostela, Radiat Phys Lab, E-15705 Santiago De Compostela, Spain.
    Paccagnella, Alessandro
    Univ Padua, Dept Informat Engn, I-35122 Padua, Italy.
    Prokofiev, Alexander
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Javanainen, Arto
    Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland;Vanderbilt Univ, Dept Elect Engn & Comp Sci, Nashville, TN 37235 USA.
    Virtanen, Ari
    Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland.
    Liberali, Valentino
    Univ Milan, Dept Phys, I-20133 Milan, Italy.
    Calligaro, Cristiano
    RedCat Devices, I-20142 Milan, Italy.
    Nahmad, Daniel
    R&D Dept, Tower Semicond, IL-2310502 Migdal Haemeq, Israel.
    Georgiou, Julius
    Univ Cyprus, Dept Elect & Comp Engn, CY-1678 Nicosia, Cyprus.
    Low-Power, Subthreshold Reference Circuits for the Space Environment: Evaluated with -rays, X-rays, Protons and Heavy Ions2019In: ELECTRONICS, ISSN 2079-9292, Vol. 8, no 5, article id 562Article in journal (Refereed)
    Abstract [en]

    The radiation tolerance of subthreshold reference circuits for space microelectronics is presented. The assessment is supported by measured results of total ionization dose and single event transient radiation-induced effects under -rays, X-rays, protons and heavy ions (silicon, krypton and xenon). A high total irradiation dose with different radiation sources was used to evaluate the proposed topologies for a wide range of applications operating in harsh environments similar to the space environment. The proposed custom designed integrated circuits (IC) circuits utilize only CMOS transistors, operating in the subthreshold regime, and poly-silicon resistors without using any external components such as compensation capacitors. The circuits are radiation hardened by design (RHBD) and they were fabricated using TowerJazz Semiconductor's 0.18 m standard CMOS technology. The proposed voltage references are shown to be suitable for high-precision and low-power space applications. It is demonstrated that radiation hardened microelectronics operating in subthreshold regime are promising candidates for significantly reducing the size and cost of space missions due to reduced energy requirements.

  • 9. Andreou, Charalambos
    et al.
    Paccagnella, A.
    González-Castaño, D.M.
    Gómez, F.
    Liberali, V.
    Prokofiev, Alexander V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Calligaro, C.
    Javanainen, A.
    Virtanen, A.
    Nahmad, D.
    Georgiou, J.
    A Subthreshold, Low-Power, RHBD Reference Circuit, for Earth Observation and Communication Satellites2015In: Circuits and Systems (ISCAS), 2015 IEEE International Symposium on, 2015, p. 2245-2248Conference paper (Refereed)
    Abstract [en]

    A low-power, wide temperature range, radiation tolerant CMOS voltage reference is presented. The proposed reference circuit exhibits a voltage deviation of 0.8mV for 3-MeV protons total ionization dose of 2Mrad and a voltage deviation of 3.8mV for 10-keV X-rays total ionization dose of 4Mrad while being biased at the nominal supply voltage of 0.75V during X-ray irradiation. In addition, the circuit consumes only 4 mu W and exhibits a measured Temperature Drift of 15ppm/degrees C for a temperature range of 190 degrees C (-60 degrees C to 130 degrees C) at the supply voltage of 0.75V. It utilizes only CMOS transistors, operating in the subthreshold regime, and poly-silicon resistors without using any diodes or external components such as compensating capacitors. The circuit is radiation hardened by design (RHBD), it was fabricated using TowerJazz Semiconductor's 0.18 mu m standard CMOS technology and occupies a silicon area of 0.039mm(2). The proposed voltage reference is suitable for high-precision and low-power space applications.

  • 10. Anelli, M.
    et al.
    Bertolucci, S.
    Bini, C.
    Branchini, P.
    Corradi, G.
    Curceanu, C.
    De Zorzi, G.
    Di Domenico, A.
    Di Micco, B.
    Ferrari, A.
    Fiore, S.
    Gauzzi, P.
    Giovannella, S.
    Happacher, F.
    Iliescu, M.
    Luca, A.
    Martini, M.
    Miscetti, S.
    Nguyen, F.
    Passeri, A.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Sarra, I.
    Sciascia, B.
    Sirghi, F.
    Tagnani, D.
    Measurement of the neutron detection efficiency of a 80% absorber-20% scintillating fibers calorimeter2011In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 626, p. 67-71Article in journal (Refereed)
    Abstract [en]

    The neutron detection efficiency of a sampling calorimeter made of 1 mm diameter scintillating fibers embedded in a lead/bismuth structure has been measured at the neutron beam of The Svedberg Laboratory at Uppsala. A significant enhancement of the detection efficiency with respect to a bulk organic scintillator detector with the same thickness is observed.

  • 11. Anelli, M.
    et al.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Measurement and simulation of the neutron response and detection efficiency of a Pb-scintillating fiber calorimeter2007In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 581, no 1-2, p. 368-372Article in journal (Refereed)
  • 12. Anelli, M.
    et al.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Measurement of the detection efficiency of the KLOE calorimeter for neutrons between 22 and 174 MeV2009In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 598, no 1, p. 244-247Article in journal (Refereed)
  • 13.
    Bevilacqua, Riccardo
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hayashi, Masataru
    Hirayama, Shusuke
    Naitou, Yuuki
    Watanabe, Yukinobu
    Tippawan, Udomrat
    Simutkin, Vasily
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Andersson, Pernilla
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Blomgren, Jan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tesinsky, Milan
    Lecolley, Francoise-Rene
    Marie, Nathalie
    Hjalmarsson, Anders
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Kolozhvari, Anatoly
    Study of pre-equilibrium emission of light complex particles from Fe and Bi induced by intermediate energy neutrons2011In: International Nuclear Physics Conference 2010: Nuclear Reactions, 2011, p. 082013-Conference paper (Refereed)
    Abstract [en]

    We have measured double differential cross sections (DDX) for emission of hydrogen- and helium-isotopes in the interaction of 175 MeV quasi-monoenergetic neutrons with Fe and Bi using the Medley setup at the The Svedberg Laboratory (Uppsala, Sweden). We compared experimental DDX with calculations with the TALYS code, which includes exciton model and Kalbach systematics; the code fails to reproduce the emission of complex light-ions, generally overestimating it. We propose an correction for the application of the Kalbach phenomenological model in the TALYS code by introducing a new energy dependence for the nucleon transfer mechanism in the pre-equilibrium emission region. Our results suggest also evidence for multiple pre-equilibrium emission of composite particles at 175 MeV.

     

  • 14.
    Bevilacqua, Riccardo
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Jansson, Kaj
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Simutkin, V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hayashi, M.
    Hirayama, S.
    Naitou, Y.
    Watanabe, Y.
    Hjalmarsson, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Uppsala University, The Svedberg Laboratory.
    Tippawan, U.
    Lecolley, F. -R
    Marie, N.
    Leray, S.
    David, J. -C
    Mashnik, S.
    Light-ion Production from O, Si, Fe and Bi Induced by 175 MeV Quasi-monoenergetic Neutrons2014In: Nuclear Data Sheets, ISSN 0090-3752, E-ISSN 1095-9904, Vol. 119, p. 190-193Article in journal (Refereed)
    Abstract [en]

    We have measured double-differential cross sections in the interaction of 175 MeV quasimonoenergetic neutrons with O, Si, Fe and Bi. We have compared these results with model calculations with INCL4.5-Abla07, MCNP6 and TALYS-1.2. We have also compared our data with PHITS calculations, where the pre-equilibrium stage of the reaction was accounted respectively using the JENDL/HE-2007 evaluated data library, the quantum molecular dynamics model (QMD) and a modified version of QMD (MQMD) to include a surface coalescence model. The most crucial aspect is the formation and emission of composite particles in the pre-equilibrium stage.

  • 15.
    Bevilacqua, Riccardo
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Simutkin, Vasily D.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tippawan, U.
    Andersson, Pernilla
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Blomgren, Jan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hayashi, M.
    Hirayama, S.
    Naito, Y.
    Watanabe, Y.
    Tesinsky, M.
    LeColley, F. -R
    Marie, N.
    Hjalmarsson, Anders
    Uppsala University, The Svedberg Laboratory.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Kolozhvari, A.
    Neutron induced light-ion production from iron and bismuth at 175 MeV2010In: Radiation Measurements, ISSN 1350-4487, E-ISSN 1879-0925, Vol. 45, no 10, p. 1145-1150Article in journal (Refereed)
    Abstract [en]

    We have measured light-ion (p, d, t, He-3 and alpha) production in the interaction of 175 MeV neutrons with iron and bismuth with low-energy thresholds and for a wide angular range (from 20 degrees to 160 degrees, in steps of 20 degrees). Measurements have been performed with the Medley setup, semi-permanently installed at the The Svedberg Laboratory, Uppsala (Sweden), where a quasi-monoenergetic neutron beam is available and well characterized. Medley is a conventional spectrometer system and consists of eight telescopes, each of them composed of two silicon surface barrier detectors, to perform particle identification, and a CsI(Tl) scintillator to fully measure the kinetic energy of the produced light-ions. We report preliminary double-differential cross sections for production of protons, deuterons and tritons in comparison with model calculations using TALYS-1.0 code. These show better agreement for the production of protons, while the theoretical calculations seem to overestimate the experimental production of deuterons and tritons.

  • 16.
    Bevilacqua, Riccardo
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Simutkin, Vasily D.
    Tippawan, U.
    Hayashi, M.
    Hirayama, S.
    Naitou, Y.
    Watanabe, Y.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Hjalmarsson, Anders
    Uppsala University, The Svedberg Laboratory.
    Andersson, P.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Blomgren, Jan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tesinsky, M.
    Lecolley, F. -R
    Marie, N.
    Kolozhvari, A.
    Light-Ion Production in the Interaction of 175 MeV Neutrons with Iron and Bismuth2011In: Journal of the Korean Physical Society, ISSN 0374-4884, E-ISSN 1976-8524, Vol. 59, no 2, p. 1701-1704Article in journal (Refereed)
    Abstract [en]

    We have measured double-differential (angle and energy) cross sections for light-ion (p, d, t, (3)He, and a) production in the interaction of quasi-monoenergetic 175 MeV neutrons with iron and bismuth. Measurements have been performed at the The Svedberg Laboratory, Uppsala (Sweden), using the Medley setup which allows low-energy thresholds and wide energy and angular ranges. Medley is a spectrometer system consisting of eight three-element telescopes placed at angles from 20 degrees to 160 degrees, in steps of 20 degrees. Each telescope is composed of two silicon surface barrier detectors and a CsI(Tl) scintillator, to perform particle identification, fully stop the produced light-ions and measure their kinetic energy. The time-of-flight was used to reduce the contribution from the low energy tail in the accepted incident neutron spectrum. We report double-differential production cross sections for protons, deuterons, tritons, (3)He and alpha particles and compare them with model calculations with TALYS-1.2.

  • 17. Bevilacqua, Riccardo
    et al.
    Pomp, Stephan
    Simutkin, Vasily
    Tippawan, Udomrat
    Andersson, Pernilla
    Blomgren, Jan
    Osterlund, Michael
    Hayashi, Masateru
    Hirayama, Shusuke
    Naito, Yuuki
    Watanabe, Yukinobu
    Tesinsky, Milan
    LeColley, Francois-Rene
    Marie, Nathalie
    Hjalmarsson, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Kolozhvari, Anatoly
    Neutron induced light-ion production from Iron and Bismuth at 175 MeV2010In: CNR '09: SECOND INTERNATIONAL WORKSHOP ON COMPOUND NUCLEAR REACTIONS AND RELATED TOPICS, 2010, article id 05005Conference paper (Refereed)
    Abstract [en]

    We have measured light-ion (p, d, t, He-3 and alpha) production in the interaction of 175 MeV neutrons with iron and bismuth, using the MEDLEY setup. A large set of measurements at 96 MeV has been recently completed and published, and now higher energy region is under investigation. MEDLEY is a conventional spectrometer system that allows low-energy thresholds and offers measurements over a wide angular range. The system consists of eight telescopes, each of them composed of two silicon surface barrier detectors, to perform particle identification, and a Csl(Tl) scintillator to fully measure the kinetic energy of the produced light-ions. The telescopes are placed at angles from 20 degrees to 160 degrees, in steps of 20 degrees. Measurements have been performed at The Svedberg Laboratory, Uppsala (Sweden), where a quasi mono-energetic neutron beam is available and well characterized. Time of flight techniques are used to select light-ion events induced by neutrons in the main peak of the source neutron spectrum. We report preliminary double differential cross sections for production of protons, deuterons and tritons in comparison with model calculations using TALYS-1.0 code.

  • 18. Bielewicz, M.
    et al.
    Kilim, S.
    Strugalska-Gola, E.
    Szuta, M.
    Wojciechowski, A.
    Tyutyunnikov, S.
    Prokofiev, Alexander
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Passoth, Elke
    Uppsala University, The Svedberg Laboratory.
    (n,xn) cross section measurements for Y-89 foils used as detectors for high energy neutron measurements in the deeply subcritical assembly “QUINTA”2017In: ND 2016: INTERNATIONAL CONFERENCE ON NUCLEAR DATA FOR SCIENCE AND TECHNOLOGY / [ed] Plompen, A.; Hambsch, FJ.; Schillebeeckx, P.; Mondelaers, W.; Heyse, J.; Kopecky, S.; Siegler, P.; Oberstedt, S., Les Ulis: EDP Sciences, 2017, Vol. 146, article id 11032Conference paper (Refereed)
    Abstract [en]

    Study of the deep subcritical systems (QUINTA) using relativistic beams is performed within the project “Energy and Transmutation of Radioactive Wastes” (E&T – RAW). The experiment assembly was irradiated by deuteron/proton beam (Dubna NUCLOTRON). We calculated the neutron energy spectrum inside the whole assembly by using threshold energy (n,xn) reactions in yttrium (Y-89) foils. There are almost no experimental cross section data for those reactions. New Y-89(n,xn) cross section measurements were carried out at The Svedberg laboratory (TSL) in Uppsala, Sweden in 2015. In this paper we present preliminary results of those experiments.

  • 19. Blideanu, V
    et al.
    Blomgren, J
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Neutron Research.
    Eudes, Ph.
    Fontbonne, J.M.
    Foucher, Y.
    Guertin, A
    Haddad, F
    Hay, L
    Hildebrand, A
    Iltis, G.
    Le Brun, C.
    Lecolley, F.R.
    Lecolley, J.F.
    Lefort, T.
    Louvel, M.
    Mermod, P
    Marie, N.
    Olsson, Nils
    Pomp, Stephan
    Österlund, M
    Prokofiev, A
    (n,Xn) measurements at 100 MeV: Recent developments and first results2004In: Proceedings of the International Workshop on Nuclear Data for the Transmutation of Nuclear Waste: September 2-5, 2003, Darmstadt, Germany, 2004Conference paper (Refereed)
  • 20. Blideanu, V.
    et al.
    Blomgren, J
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Neutron Research.
    Eudes, Ph.
    Guertin, A.
    Haddad, F.
    Klug, Joakim
    Le Brun, C.
    Lecolley, F.R.
    Lecolley, J.F.
    Lefort, T.
    Louvel, M.
    Marie, N.
    Olsson, Nils
    Pomp, S
    Prokofiev, A
    Tippawan, U
    Light charged-particle production in 96 MeV neutron-induced reactions on iron, lead and uranium2004In: Proceedings of the International Workshop on Nuclear Data for the Transmutation of Nuclear Waste: September 2-5, 2003, Darmstadt, Germany, 2004Conference paper (Refereed)
  • 21.
    Blomgren, J
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Pomp, s
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Boursellier, J-C
    Österlund, M
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Koning, A
    Perspectives on mono-energy neutron testing of single-event effects2007In: Perspectives on mono-energy neutron testing of single-event effects, 2007Conference paper (Refereed)
  • 22. Gerardin, Simone
    et al.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Heavy-Ion Induced Threshold Voltage Tails in Floating Gate Arrays2010In: IEEE Transactions on Nuclear Science, ISSN 0018-9499, E-ISSN 1558-1578, Vol. 57, no 6, p. 3199-3205Article in journal (Refereed)
  • 23.
    Hayashi, M
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Watanabe, Y
    Blomgren, J
    Department of Neutron Research. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Nilsson, L
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Öhrn, A
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, S
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, A
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Simutkin, V
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Söderström, P.-A.
    Tippawan, U
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Measurements of light-ion production at the new Uppsala neutron beam facility2007In: International Conference on Nuclear Data for Science and Technology, Nice, France, April 22-27 (accepted), 2007Conference paper (Refereed)
  • 24. Hirayama, S.
    et al.
    Watanabe, Y.
    Naitou, Y.
    Andersson, P
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Bevilacqua, Riccardo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Simutkin, Vasily
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Sjöstrand, Henrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hjalmarsson, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Uppsala University, The Svedberg Laboratory.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Tesinsky, M.
    Tippawan, U.
    Light-ion Production from a Thin Silicon Target Bombarded by 175 MeV Quasi Mono-energetic Neutrons2011In: Journal of the Korean Physical Society, ISSN 0374-4884, E-ISSN 1976-8524, Vol. 59, no 2, p. 1447-1450Article in journal (Refereed)
    Abstract [en]

    Double-differential production yields of light ions (p, d, t, (3)He, and alpha) from a thin silicon target induced by 175 MeV quasi mono-energetic neutrons were measured using the MEDLEY setup at the The Svedberg Laboratory (TSL) in Uppsala in order to benchmark evaluated nuclear data and nuclear reaction models. The MEDLEY is a conventional spectrometer system which consists of eight counter telescopes. Each telescope is composed of two silicon surface barrier detectors as the Delta E detectors and a CsI(Tl) scintillator as the E detector for particle identification. The telescopes are placed at angles from 20 degrees to 160 degrees in steps of 20 degrees. The measured double-differential yields of light ions are compared with PHITS calculations using the following nuclear reaction options: the high-energy nuclear data library (JENDL/HE-2007), the quantum molecular dynamics (QMD) model, and the intra-nuclear cascade (INC) model.

  • 25.
    Hirayama, Shusuke
    et al.
    Kyushu University.
    Watanabe, Yukinobu
    Hayashi, Masateru
    Naitou, Yuuki
    Watanabe, Takehito
    Bevilacqua, Riccardo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Blomgren, Jan
    Nilsson, Leif
    Öhrn, Angelica
    Österlund, Michael
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Simutkin, Vasily
    Tippawan, Udomrat
    Production of protons, deuterons, and tritons from carbon bombarded by 175 MeV quasi mono-energetic neutrons2011In: Progress in Nuclear Science and Technology, Vol. 1, p. 69-72Article in journal (Refereed)
    Abstract [en]

    We have measured double-differential yields of protons, deuterons, and tritons produced from carbon induced by 175 MeV quasi mono-energetic neutrons using the MEDLEY setup at the TSL neutron beam facility. The measured data are used for benchmarking of a high-energy nuclear data file, JENDL/HE-2007, and both intra-nuclear cascade (INC) model and quantum molecular dynamics (QMD) calculations.

  • 26. Hong, Q.
    et al.
    Platt, S.P.
    Prokofiev, Alexander V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Passoth, Elke
    Uppsala University, The Svedberg Laboratory.
    Detailed Geant4 simulations of the ANITA and ANITA-CUP neutron facilities2015Conference paper (Refereed)
    Abstract [en]

    Simulations of the ANITA spallation neutron source at The Svedberg Laboratory (TSL) are described. Neutron radiation calculations show close agreement with measurements at both standard and close user positions. Gamma radiation characteristics are also predicted.

  • 27.
    Jansson, Kaj
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Al-Adili, Ali
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hjalmarsson, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Andersson Sundén, Erik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Uppsala University, The Svedberg Laboratory.
    Tarrío, Diego
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Designing an upgrade of the Medley setup for light-ion production and fission cross-section measurements2015In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 794, p. 141-150Article in journal (Refereed)
    Abstract [en]

    Abstract Measurements of neutron-induced fission cross-sections and light-ion production are planned in the energy range 1-40 MeV at the upcoming Neutrons For Science (NFS) facility. In order to prepare our detector setup for the neutron beam with continuous energy spectrum, a simulation software was written using the Geant4 toolkit for both measurement situations. The neutron energy range around 20 MeV is troublesome when it comes to the cross-sections used by Geant4 since data-driven cross-sections are only available below 20 MeV but not above, where they are based on semi-empirical models. Several customisations were made to the standard classes in Geant4 in order to produce consistent results over the whole simulated energy range. Expected uncertainties are reported for both types of measurements. The simulations have shown that a simultaneous precision measurement of the three standard cross-sections H(n,n), 235U(n,f) and 238U(n,f) relative to each other is feasible using a triple layered target. As high resolution timing detectors for fission fragments we plan to use Parallel Plate Avalanche Counters (PPACs). The simulation results have put some restrictions on the design of these detectors as well as on the target design. This study suggests a fissile target no thicker than 2 µm (1.7 mg/cm2) and a PPAC foil thickness preferably less than 1 µm . We also comment on the usability of Geant4 for simulation studies of neutron reactions in this energy range.

  • 28.
    Jansson, Kaj
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Uppsala University, The Svedberg Laboratory.
    Scian, G.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tarrio, Diego
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Measuring Light-ion Production and Fission Cross Sections Normalised to H(n,p) Scattering at the Upcoming NFS Facility2014In: Nuclear Data Sheets, ISSN 0090-3752, E-ISSN 1095-9904, Vol. 119, p. 395-397Article in journal (Refereed)
    Abstract [en]

    The Medley detector setup is planned to be moved to and used at the new neutron facility NFS where measurements of light-ion production and fission cross-sections are planned at 1-40 MeV. Medley has eight detector telescopes providing Delta E-Delta E-E data, each consisting of two silicon detectors and a CsI(Tl) detector at the back. The telescope setup can be rotated and arranged to cover any angle. Medley has previously been used in many measurements at The Svedberg Laboratory (TSL) in Uppsala mainly with a quasi-mono-energetic neutron beam at 96 and 175 MeV. To be able to do measurements at NFS, which will have a white neutron beam, Medley needs to detect the reaction products with a high timing resolution providing the ToF of the primary neutron. In this paper we discuss the design of the Medley upgrade along with simulations of the setup. We explore the use of Parallel Plate Avalanche Counters (PPACs) which work very well for detecting fission fragments but require more consideration for detecting deeply penetrating particles.

  • 29.
    Jansson, Kaj
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Scian, Giovanni
    Tarrio, Diego
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Measuring light-ion production and fission cross sections versus elastic np-scattering at the upcoming NFS facility2014Conference paper (Refereed)
  • 30.
    Johansson, Cecilia
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research.
    Blomgren, J
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research.
    Atac, A
    Bergenwall, B
    Dangtip, S
    Elmgren, K
    klug, K
    Olsson, N
    Pomp, S
    Prokofiev, A
    Tippawan, U
    Jonsson, O
    Nilsson, L
    Renberg, P U
    Nadel-Turonski, P
    Le Brun, C
    Lecolley, J F
    Lecolley, F R
    Louvel, M
    Marie, N
    Varignon, C
    Eudes, Ph
    Haddad, F
    Kerveno, M
    Kirchner, T
    Lebrun, C
    Stuttge, L
    Slypen, I
    Neutrons for science and industry - the Uppsala neutron beam facility2001In: Proceedings of Nuclear Applications in the New Millennium,Reno, Nevada, USA, Nov. 11-15, 2001., 2001Conference paper (Refereed)
  • 31.
    Johansson, Cecilia
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Blomgren, Jan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Atac, A
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Bergenwall, Bel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Dangtip, S
    Elmgren, K
    Hildebrand, Angelica
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Jonsson, O
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Klug, J
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Mermod, Philipe
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Nadel-Turonski, P
    Nilsson, L
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Olsson, N
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Prokofiev, A
    Uppsala University, The Svedberg Laboratory. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Renberg, P
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Tippawan, Udomrat
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Forward-angle neutron-proton scattering at 96 MeV2004In: Phys. Rev. CArticle in journal (Refereed)
  • 32.
    Johansson, Cecilia
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research.
    Blomgren, Jan
    Ataç, A.
    Bergenwall, Bel
    Hildebrand, Angelica
    Klug, J.
    Mermod, Philippe
    Nilsson, Leif
    Olsson, N.
    Österlund, Michael
    Pomp, Stephan
    Tippawan, Udomrat
    Jonsson, O.
    Prokofiev, A
    Uppsala University, The Svedberg Laboratory.
    Renberg, P.-U.
    Elmgren, K.
    Dangtip, S.
    Nadel-Turonski, P.
    Forward-angle neutron-proton scattering at 96 MeV2004In: Proc. Int. Conf. on Nuclear Data for Science and Technology, 2004Conference paper (Other (popular science, discussion, etc.))
  • 33.
    Klug, J
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Neutron Research. Department of Physics and Astronomy, Applied Nuclear Physics.
    Blomgren, J
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Neutron Research. Department of Physics and Astronomy, Applied Nuclear Physics.
    Atac, A
    Bergenwall, B
    Hildebrand, A
    Johansson, C
    Mermod, P
    Department of Physics and Astronomy, Applied Nuclear Physics.
    Nilsson, L
    Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, S
    Department of Physics and Astronomy, Applied Nuclear Physics.
    Tippawan, U
    Department of Physics and Astronomy, Applied Nuclear Physics.
    Elmgren, K
    Olsson, N
    Department of Physics and Astronomy, Applied Nuclear Physics.
    Jonsson, O
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, A V
    Department of Physics and Astronomy, Applied Nuclear Physics.
    Renberg, P U
    Nadel-Turonski, P
    Dangtip, S
    Phansuke, P
    Österlund, M
    Department of Physics and Astronomy, Applied Nuclear Physics.
    Le Brun, C
    Lecolley, J F
    Lecolley, F R
    louvle, M
    Marie-Noury, N
    Schweitzer, C
    Eudes, Ph
    Haddad, F
    Lebrun, C
    Koning, A J
    Ledoux, X
    Elastic Neutron Scattering at 96 MeV from C-12 and Pb-2082003In: Phys. Rev. C, Vol. 68, p. 064605-Article in journal (Refereed)
  • 34.
    Lantz, Mattias
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Al-Adili, Ali
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gorelov, D.
    Univ Jyvaskyla, Dept Phys, SF-40351 Jyvaskyla, Finland..
    Jokinen, A.
    Univ Jyvaskyla, Dept Phys, SF-40351 Jyvaskyla, Finland..
    Kolhinen, V. S.
    Univ Jyvaskyla, Dept Phys, SF-40351 Jyvaskyla, Finland..
    Mattera, Andrea
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Moore, I.
    Univ Jyvaskyla, Dept Phys, SF-40351 Jyvaskyla, Finland..
    Penttila, H.
    Univ Jyvaskyla, Dept Phys, SF-40351 Jyvaskyla, Finland..
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Rakopoulos, Vasileios
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Rinta-Antila, S.
    Univ Jyvaskyla, Dept Phys, SF-40351 Jyvaskyla, Finland..
    Simutkin, Vasily
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Univ Jyvaskyla, Dept Phys, SF-40351 Jyvaskyla, Finland..
    Solders, Andreas
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Fission yield measurements at IGISOL2016In: CNR*15 - 5th International Workshop On Compound-Nuclear Reactions And Related Topics / [ed] Kawano, T; Chiba, S; Paris, MW; Talou, P, 2016, article id 01008Conference paper (Refereed)
    Abstract [en]

    The fission product yields are an important characteristic of the fission process. In fundamental physics, knowledge of the yield distributions is needed to better understand the fission process. For nuclear energy applications good knowledge of neutron-induced fission-product yields is important for the safe and efficient operation of nuclear power plants. With the Ion Guide Isotope Separator On-Line (IGISOL) technique, products of nuclear reactions are stopped in a buffer gas and then extracted and separated by mass. Thanks to the high resolving power of the JYFLTRAP Penning trap, at University of Jyvaskyla, fission products can be isobarically separated, making it possible to measure relative independent fission yields. In some cases it is even possible to resolve isomeric states from the ground state, permitting measurements of isomeric yield ratios. So far the reactions U(p,f) and Th(p,f) have been studied using the IGISOL-JYFLTRAP facility. Recently, a neutron converter target has been developed utilizing the Be(p,xn) reaction. We here present the IGISOL-technique for fission yield measurements and some of the results from the measurements on proton induced fission. We also present the development of the neutron converter target, the characterization of the neutron field and the first tests with neutron-induced fission.

  • 35.
    Ledoux, X.
    et al.
    GANIL, Bd Henri Becquerel,BP 55027, F-14076 Caen 05, France..
    Aiche, M.
    CENBG, 19 Chemin Solarium,CS 10120, F-33175 Gradignan, France..
    Avrigeanu, M.
    NIPNE, Str Reactorului 30,POB MG-6, Bucharest, Romania..
    Avrigeanu, V.
    NIPNE, Str Reactorului 30,POB MG-6, Bucharest, Romania..
    Balanzat, E.
    CIMAP, Bd Henri Becquerel,BP 5133, F-14070 Caen 05, France..
    Ban-d'Etat, B.
    CIMAP, Bd Henri Becquerel,BP 5133, F-14070 Caen 05, France..
    Ban, G.
    LPC, 6 Bd Marechal Juin, F-14050 Caen, France..
    Bauge, E.
    CEA, DAM, DIF, F-91297 Arpajon, France..
    Belier, G.
    CEA, DAM, DIF, F-91297 Arpajon, France..
    Bem, P.
    NPI, CZ-25068 Rez, Czech Republic..
    Borcea, C.
    NIPNE, Str Reactorului 30,POB MG-6, Bucharest, Romania..
    Caillaud, T.
    CEA, DAM, DIF, F-91297 Arpajon, France..
    Chatillon, A.
    CEA, DAM, DIF, F-91297 Arpajon, France..
    Czajkowski, S.
    CENBG, 19 Chemin Solarium,CS 10120, F-33175 Gradignan, France..
    Dessagne, P.
    Unive Strasbourg, IPHC, UMR 7178, CNRS, 23 Rue Loess,BP 28, F-67037 Strasbourg 2, France..
    Dore, D.
    Univ Paris Saclay, CEA, DSM, IRFU,SPhN, F-91191 Gif Sur Yvette, France..
    Fischer, U.
    KIT, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany..
    Fregeau, M. O.
    GANIL, Bd Henri Becquerel,BP 55027, F-14076 Caen 05, France..
    Grinyer, J.
    GANIL, Bd Henri Becquerel,BP 55027, F-14076 Caen 05, France..
    Guillous, S.
    CIMAP, Bd Henri Becquerel,BP 5133, F-14070 Caen 05, France..
    Gunsing, F.
    Univ Paris Saclay, CEA, DSM, IRFU,SPhN, F-91191 Gif Sur Yvette, France..
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Henning, G.
    Unive Strasbourg, IPHC, UMR 7178, CNRS, 23 Rue Loess,BP 28, F-67037 Strasbourg 2, France..
    Jacquot, B.
    GANIL, Bd Henri Becquerel,BP 55027, F-14076 Caen 05, France..
    Jansson, Kaj
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Jurado, B.
    CENBG, 19 Chemin Solarium,CS 10120, F-33175 Gradignan, France..
    Kerveno, M.
    Unive Strasbourg, IPHC, UMR 7178, CNRS, 23 Rue Loess,BP 28, F-67037 Strasbourg 2, France..
    Klix, A.
    KIT, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany..
    Landoas, O.
    CEA, DAM, DIF, F-91297 Arpajon, France..
    Lecolley, F. R.
    LPC, 6 Bd Marechal Juin, F-14050 Caen, France..
    Lecouey, J. L.
    LPC, 6 Bd Marechal Juin, F-14050 Caen, France..
    Majerle, M.
    NPI, CZ-25068 Rez, Czech Republic..
    Marie, N.
    LPC, 6 Bd Marechal Juin, F-14050 Caen, France..
    Materna, T.
    Univ Paris Saclay, CEA, DSM, IRFU,SPhN, F-91191 Gif Sur Yvette, France..
    Mrazek, J.
    NPI, CZ-25068 Rez, Czech Republic..
    Novak, J.
    NPI, CZ-25068 Rez, Czech Republic..
    Oberstedt, S.
    European Commiss, Joint Res Ctr, Geel, Belgium..
    Oberstedt, A.
    ELI NP, Str Reactorului 30,POB MG-6, Bucharest, Romania..
    Panebianco, S.
    Univ Paris Saclay, CEA, DSM, IRFU,SPhN, F-91191 Gif Sur Yvette, France..
    Perrot, L.
    IPNO, 15 Rue Georges Clemenceau, F-91406 Orsay, France..
    Plompen, A. J. M.
    European Commiss, Joint Res Ctr, Geel, Belgium..
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Ramillon, J. M.
    CIMAP, Bd Henri Becquerel,BP 5133, F-14070 Caen 05, France..
    Farget, F.
    GANIL, Bd Henri Becquerel,BP 55027, F-14076 Caen 05, France..
    Ridikas, D.
    Univ Paris Saclay, CEA, DSM, IRFU,SPhN, F-91191 Gif Sur Yvette, France..
    Rosse, B.
    CEA, DAM, DIF, F-91297 Arpajon, France..
    Serot, O.
    CEN Cadarache, CEA, DEN, F-13108 St Paul Les Durance, France..
    Simakov, S. P.
    KIT, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany..
    Simeckova, E.
    NPI, CZ-25068 Rez, Czech Republic..
    Stanoiu, M.
    NIPNE, Str Reactorului 30,POB MG-6, Bucharest, Romania..
    Stefanik, M.
    NPI, CZ-25068 Rez, Czech Republic..
    Sublet, J. C.
    Culham Ctr Fus Energy, Abingdon OX14 3DB, Oxon, England..
    Taieb, J.
    CEA, DAM, DIF, F-91297 Arpajon, France..
    Tarrio, Diego
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tassan-Got, L.
    Thfoin, I.
    CEA, DAM, DIF, F-91297 Arpajon, France..
    Varignon, C.
    CEA, DAM, DIF, F-91297 Arpajon, France..
    The Neutrons for Science Facility at SPIRAL-22018In: Radiation Protection Dosimetry, ISSN 0144-8420, E-ISSN 1742-3406, Vol. 180, no 1-4, p. 115-119Article in journal (Refereed)
    Abstract [en]

    The neutrons for science (NFS) facility is a component of SPIRAL-2, the new superconducting linear accelerator built at GANIL in Caen (France). The proton and deuteron beams delivered by the accelerator will allow producing intense neutron fields in the 100 keV-40 MeV energy range. Continuous and quasi-mono-kinetic energy spectra, respectively, will be available at NFS, produced by the interaction of a deuteron beam on a thick Be converter and by the Li-7(p, n) reaction on thin converter. The pulsed neutron beam, with a flux up to two orders of magnitude higher than those of other existing time-of-flight facilities, will open new opportunities of experiments in fundamental research as well as in nuclear data measurements. In addition to the neutron beam, irradiation stations for neutron-, proton- and deuteron-induced reactions will be available for cross-sections measurements and for the irradiation of electronic devices or biological cells. NFS, whose first experiment is foreseen in 2018, will be a very powerful tool for physics, fundamental research as well as applications like the transmutation of nuclear waste, design of future fission and fusion reactors, nuclear medicine or test and development of new detectors.

  • 36. Ledoux, X.
    et al.
    Aïche, M.
    Avrigeanu, M.
    Avrigeanu, V.
    Balanzat, E.
    Ban-d'Etat, B.
    Ban, G.
    Bauge, E.
    Bélier, G.
    Bém, P.
    Borcea, C.
    Caillaud, T.
    Chatillon, A.
    Czajkowski, S.
    Dessagne, P.
    Doré, D.
    Fischer, U.
    Frégeau, M. O.
    Grinyer, J.
    Guillous, S.
    Gunsing, F.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Henning, G.
    Jacquot, B.
    Jansson, Kaj
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Jurado, B.
    Kerveno, M.
    Klix, A.
    Landoas, O.
    Lecolley, F. R.
    Lecouey, J. L.
    Majerle, M.
    Marie, N.
    Materna, T.
    Mrázek, J.
    Negoita, F.
    Novák, J.
    Oberstedt, S.
    Oberstedt, A.
    Panebianco, S.
    Perrot, L.
    Plompen, A. J. M.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Ramillon, J. M.
    Farget, F.
    Ridikas, D.
    Rossé, B.
    Sérot, O.
    Simakov, S. P.
    Šimečková, E.
    Štefánik, M.
    Sublet, J. C.
    Taïeb, J.
    Tarrío, Diego
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tassan-Got, L.
    Thfoin, I.
    Varignon, C.
    The neutrons for science facility at SPIRAL-22017In: ND 2016: INTERNATIONAL CONFERENCE ON NUCLEAR DATA FOR SCIENCE AND TECHNOLOGY / [ed] Plompen, A; Hambsch, FJ; Schillebeeckx, P; Mondelaers, W; Heyse, J; Kopecky, S; Siegler, P; Oberstedt, S, Les Ulis: EDP Sciences, 2017, article id 03003Conference paper (Refereed)
    Abstract [en]

    Numerous domains, in fundamental research as well as in applications, require the study of reactions induced by neutrons with energies from few MeV up to few tens of MeV. Reliable measurements also are necessary to improve the evaluated databases used by nuclear transport codes. This energy range covers a large number of topics like transmutation of nuclear waste, design of future fission and fusion reactors, nuclear medicine or test and development of new detectors. A new facility called Neutrons For Science (NFS) is being built for this purpose on the GANIL site at Caen (France). NFS is composed of a pulsed neutron beam for time-of-flight facility as well as irradiation stations for cross-section measurements. Neutrons will be produced by the interaction of deuteron and proton beams, delivered by the SPIRAL-2 linear accelerator, with thick or thin converters made of beryllium or lithium. Continuous and quasi-mono-energetic spectra will be available at NFS up to 40 MeV. In this fast energy region, the neutron flux is expected to be up to 2 orders of magnitude higher than at other existing time-of-flight facilities. In addition, irradiation stations for neutron-, proton- and deuteron-induced reactions will allow performing cross-section measurements by the activation technique. After a description of the facility and its characteristics, the experiments to be performed in the short and medium term will be presented.

  • 37. Lezius, M.
    et al.
    Predehl, K.
    Stoewer, W.
    Tuerler, A.
    Greiter, M.
    Hoeschen, Ch.
    Thirolf, P.
    Assmann, W.
    Habs, D.
    Prokofiev, Alexander
    Uppsala University, The Svedberg Laboratory.
    Ekström, Curt
    Uppsala University, The Svedberg Laboratory.
    Haensch, T. W.
    Holzwarth, R.
    Radiation Induced Absorption in Rare Earth Doped Optical Fibers2012In: IEEE Transactions on Nuclear Science, ISSN 0018-9499, E-ISSN 1558-1578, Vol. 59, no 2, p. 425-433Article in journal (Refereed)
    Abstract [en]

    We have investigated the radiation induced absorption (RIA) of optical fibers with high active ion concentration. Comparing our results to the literature leads us to the conclusion that RIA appears to be only weakly dependent on the rare earth dopant concentration. Instead, co-dopants like Al, Ge, or P and manufacturing processes seem to play the major role for the radiation sensitivity. It is also observed that different types of irradiation cause very similar RIA at the same dose applied, with the exception at very high dose rates. It has been studied how RIA can be efficiently reduced via moderate heating. Recovery of up to 70% of the original transmission has been reached after annealing at 450 K. We conclude that radiation induced color centers have weak binding energies between 20 and 40 meV. This suggests that annealing could become a key strategy for an improved survival of rare earth doped fibers in radiative environments, opening up new possibilities for long-term missions in space.

  • 38.
    Mattera, Andrea
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Andersson, Peter
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hjalmarsson, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Lantz, Mattias
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Rakopoulos, Vasileios
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Solders, Andreas
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Valldor-Blücher, Johan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gorelov, Dmitry
    University of Jyväskylä.
    Penttilä, Heikki
    University of Jyväskylä.
    Rinta-Antila, Sami
    University of Jyväskylä.
    Prokofiev, Alexander
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Uppsala University, The Svedberg Laboratory.
    Passoth, Elke
    Uppsala University, The Svedberg Laboratory.
    Bedogni, Roberto
    INFN - LNF.
    Gentile, A
    INFN - LNF.
    Bortot, Davide
    INFN - LNF.
    Esposito, A.
    INFN - LNF.
    Introini, Maria Vittoria
    INFN - LNF.
    Pola, Andrea
    Characterization of a Be(p,xn) neutron source for fission yields measurements2014In: Nuclear Data Sheets, ISSN 0090-3752, E-ISSN 1095-9904, Vol. 119, p. 416-418Article in journal (Refereed)
    Abstract [en]

    We report on measurements performed at The Svedberg Laboratory (TSL) to characterize a proton-neutron converter for independent fission yield studies at the IGISOL-JYFLTRAP facility (Jyväskylä, Finland). A 30-MeV proton beam impinged on a 5 mm water-cooled Beryllium target. Two independent experimental techniques have been used to measure the neutron spectrum: a Time-of-Flight (TOF) system to estimate the high-energy contribution, and a Bonner Sphere Spectrometer to provide precise results from thermal energies up to 20 MeV. An overlap between the energy regions covered by the two systems will permit a cross-check of the results from the different techniques. In this paper, the measurement and the analysis technique will be presented together with some preliminary results.

  • 39.
    Mattera, Andrea
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Bedogni, Roberto
    INFN - LNF.
    Rakopoulos, Vasileios
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Lantz, Mattias
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Solders, Andreas
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Al-Adili, Ali
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Andersson, Peter
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hjalmarsson, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Valldor-Blucher, Johan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Uppsala University, The Svedberg Laboratory.
    Passoth, Elke
    Uppsala University, The Svedberg Laboratory.
    Gentile, A.
    INFN - LNF.
    Bortot, Davide
    INFN - LNF.
    Esposito, A.
    INFN - LNF.
    Introini, Maria Vittoria
    INFN - LNF .
    Pola, Andrea
    INFN - LNF.
    Penttilä, Heikki
    University of Jyväskylä.
    Gorelov, Dmitry
    University of Jyväskylä.
    Rinta-Antila, Sami
    University of Jyväskylä.
    Measurement of the energy spectrum from the neutron source planned for IGISOL2014In: Proceedings of the ERINDA Workshop, CERN, Geneva, Switzerland, 1-3 October 2013, CERN-Proceedings-2014-002, 2014, p. 39-45Conference paper (Other academic)
  • 40.
    Mattera, Andrea
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Lantz, Mattias
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Rakopoulos, Vasileios
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Solders, Andreas
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Al-Adili, Ali
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Passoth, Elke
    Uppsala University, The Svedberg Laboratory.
    Prokofiev, Alexander
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Andersson, Peter
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hjalmarsson, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Bedogni, Roberto
    INFN - LNF.
    Bortot, Davide
    INFN - LNF; Politecnico di Milano, p.zza L. da Vinci 32.
    Esposito, A.
    INFN - LNF.
    Gentile, A.
    INFN - LNF.
    Gómez-Ros, J.M.
    INFN-LNF; CIEMAT, Complutense 40.
    Introini, Maria Vittoria
    Politecnico di Milano, p.zza L. da Vinci 32.
    Pola, Andrea
    Politecnico di Milano, p.zza L. da Vinci 32.
    Gorelov, Dmitry
    University of Jyväskylä.
    Penttilä, H.
    University of Jyväskylä.
    Moore, I.D.
    University of Jyväskylä.
    Rinta-Antila, Sami
    University of Jyväskylä.
    Kolhinen, V.S.
    University of Jyväskylä.
    Eronen, T.
    University of Jyväskylä.
    A neutron source for IGISOL-JYFLTRAP: Design and characterisation2017In: European Physical Journal A, ISSN 1434-6001, E-ISSN 1434-601X, Vol. 53, no 173Article in journal (Refereed)
    Abstract [en]

    A white neutron source based on the Be(p,nx) reaction for fission studies at the IGISOLJYFLTRAP facility has been designed and tested. 30 MeV protons impinge on a 5mm thick water-cooled beryllium disc. The source was designed to produce at least 1012 fast neutrons/s on a secondary fission target, in order to reach competitive production rates of fission products far from the valley of stability.

    The Monte Carlo codes MCNPX and FLUKA were used in the design phase to simulate the neutron energy spectra. Two experiments to characterise the neutron field were performed: the first was carried out at The Svedberg Laboratory in Uppsala (SE), using an Extended-Range Bonner Sphere Spectrometer and a liquid scintillator which used the time-of-flight (TOF) method to determine the energy of the neutrons; the second employed Thin-Film Breakdown Counters for the measurement of the TOF, and activation foils, at the IGISOL facility in Jyväskylä (FI). Design considerations and the results of the two characterisation measurements are presented, providing benchmarks for the simulations.

  • 41. Mermod, P
    et al.
    Blomgren, J
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Neutron Research. Department of Physics and Astronomy, Applied Nuclear Physics.
    Nilsson, L
    Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, S
    Department of Physics and Astronomy, Applied Nuclear Physics.
    Öhrn, A
    Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, M
    Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, A
    Department of Physics and Astronomy, Applied Nuclear Physics.
    Tippawan, U
    Department of Physics and Astronomy, Applied Nuclear Physics.
    Kerma coefficients for neutron scattering on C-12 and O-16 at 96MeV2007In: Tenth Symposium on Neutron Dosimetry,Uppsala, Sweden, June 12-16, 2006 (accepted)., 2007Conference paper (Refereed)
  • 42.
    Mermod, P
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Blomgren, J
    Department of Neutron Research. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Nilsson, L
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, S
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Öhrn, A
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, M
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, A
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tippawan, U
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Precision measurement of the np scattering differential cross section in the intermediate energy region2007In: Tenth Symposium on Neutron DosimetryUppsala, Sweden, June 12-16, 2006 (accepted, 2007Conference paper (Refereed)
  • 43.
    Mermod, P
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Blomgren, J
    Department of Neutron Research. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Nilsson, L
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Öhrn, A
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, M
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, S
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, A
    Interfaculty Units, The Svedberg Laboratory. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tippawan, U
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    fast neutron scattering on carbon and oxygen2006In: International workshop on Fast Neutron Detectors and Applications,Cape Town, South Africa, April 3-6, 2006, 2006, p. 071-Conference paper (Refereed)
  • 44.
    Mermod, P
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Blomgren, J
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Öhrn, A
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Österlund, M
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Pomp, S
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Bergenwall, B
    klug, J
    Nilsson, L
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Olsson, N
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Tippawan, U
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Nadel-Turonski, P
    Jonsson, O
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Renberg, P-U
    Maeda, Y
    Sakai, H
    Tamii, A
    Amos, K
    Crespo, R
    Moro, A
    95 MeV neutron scattering on hydrogen, deuterium, carbon and oxygen2007In: International Conference on Nuclear Data for Science and Technology,Nice, France, April 22-27, 2007 (accepted), 2007Conference paper (Refereed)
  • 45.
    Mermod, P
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research.
    Blomgren, Jan
    Bergenwall, Bel
    Hildebrand, Angelica
    Johansson, Cecilia
    Klug, J.
    Nilsson, L
    Olsson, N
    Österlund, Michael
    Pomp, Stephan
    Tippawan, U
    Jonsson, O
    Prokofiev, A
    Uppsala University, The Svedberg Laboratory.
    Renberg, P
    Nadel-Turonski, P
    Maeda, Y
    Sakai, H
    Tamii, A
    Search for three-body force effects in neutron–deuteron scattering at 95 MeV2004In: Phys. Lett. B, Vol. 597, p. 243–248-Article in journal (Refereed)
  • 46.
    Mermod, P.
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research.
    Blomgren, Jan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research.
    Nilsson, L.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research.
    Öhrn, Angelica
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Tippawan, U.
    Precision measurements of the np scattering differential cross section in the intermediate energy region2007In: Radiation Protection Dosimetry, ISSN 0144-8420, E-ISSN 1742-3406, Vol. 126, no 1-4, p. 109-112Article in journal (Refereed)
    Abstract [en]

    In fast neutron cancer therapy, similar to 50% of the cell damage is caused by recoil protons from neutron-proton (np) scattering. In the intermediate energy region, there is a need for unambiguous np scattering data with good precision in both the shape of the angular distribution and the absolute normalisation. The normalisation techniques have been reviewed for np scattering measurements as well as recent experimental results, particularly the data obtained at The Svedberg Laboratory at 96 and 162 MeV. In addition, to what extent systematic uncertainties in the np differential cross section might affect the determination of proton recoil kerma coefficients is investigated.

  • 47. Michel, R
    et al.
    Glasser, W
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Neutron Research. Department of Physics and Astronomy, Applied Nuclear Physics.
    Herpers, U
    Schuhmacher, H
    Brede, H.J.
    Dangendorf, V
    Nolte, R
    Malmborg, P
    Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, A
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Applied Nuclear Physics.
    Smirnov, A
    Ryzhov, I
    Kollár, D
    Meulders, J.P.
    Duijvestijn, M
    Koning, A
    Residual Nuclide Production from Iron, Lead, and Uranium by Neutron-Induced Reactions up to 180 MeV2004In: Proc. Int. Conf. on Nuclear Data for Science and Technology, 2004Conference paper (Other scientific)
  • 48. Michel, R.
    et al.
    Hansmann, D.
    Neumann, S.
    Glasser, W.
    Schuhmacher, H.
    Dangendorf, V.
    Nolte, R.
    Herpers, U.
    Smirnov, A. N.
    Ryzhov, I. V.
    Prokofiev, Alexander V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Uppsala University, The Svedberg Laboratory.
    Malmborg, P.
    Uppsala University, The Svedberg Laboratory.
    Kollar, D.
    Meulders, J. -P
    Excitation functions for the production of radionuclides by neutron-induced reactions on C, O, Mg, Al, Si, Fe, Co, Ni, Cu, Ag, Te, Pb, and U up to 180 MeV2015In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, ISSN 0168-583X, E-ISSN 1872-9584, Vol. 343, p. 30-43Article in journal (Refereed)
    Abstract [en]

    Irradiation experiments with well-characterized, quasi mono-energetic neutrons of energies between 32.7 MeV and 175.4 MeV were performed at UCL/Louvain-la-Neuve and TSL/Uppsala. The abundances of relatively short-lived residual radionuclides from 13 different target elements were determined by 7-spectrometry. More than 100 excitation functions of neutron-induced reactions were unfolded based on the neutron spectra and the radionuclide abundances with the aid of additional information that was provided by "guess" excitation functions calculated by the TALYS 1.0 code. The results are compared with the sparse existing data from other authors. The new excitation functions were validated by calculation of and comparison with experimental thick-target production rates. Consistency with neutron excitation functions up to 1.6 GeV, which were derived earlier by unfolding the thick-target production rates, was so demonstrated.

  • 49. Naitou, Y.
    et al.
    Watanabe, Y.
    Hirayama, S.
    Hayashi, M.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Hjalmarsson, Anders
    Uppsala University, The Svedberg Laboratory. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Andersson, P
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Bevilacqua, Riccardo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Osterlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Simutkin, Vasily
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Sjostrand, Henrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tesinsky, M.
    Tippawan, U.
    Characterization of ANITA and QMN Neutron Beams at TSL Using Proton Recoil Techniques2011In: Journal of the Korean Physical Society, ISSN 0374-4884, E-ISSN 1976-8524, Vol. 59, no 2, p. 1439-1442Article in journal (Refereed)
    Abstract [en]

    Neutron beam characterization measurements have been carried out in both the AN:ITA and QMN modes using the incident proton beam of 180 MeV at the The Svedverg Laboratory (TSL) in Uppsala. The spectral neutron flux data have been obtained by measuring elastic np-scattering with the Medley setup. The experimental results in the ANITA and QMN modes are compared with an MCNPX simulation and with the systematics of QMN spectra, respectively.

  • 50.
    Naitou, Yuuki
    et al.
    Kyushu University.
    Watanabe, Yukinobu
    Hirayama, Shusuke
    Hayashi, Masateru
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Andersson, Pernilla
    Bevilacqua, Riccardo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Österlund, Michael
    Pomp, Stephan
    Simutkin, Vasily
    Sjöstand, Herik
    Tesinsky, Milan
    Tippawan, Udomrat
    Characterization of ANITA and QMN neutron beams at TSL using proton recoil techniques2011In: Journal of Korean Physical Society: Proceedings of the International Conference on Nuclear Data for Science and Technology 2010 / [ed] Korean Physical Society, 2011Conference paper (Refereed)
12 1 - 50 of 91
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