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Modelling radiation damage to pixel sensors in the ATLAS detector
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.ORCID iD: 0000-0002-1253-8583
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
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Number of Authors: 28802019 (English)In: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 14, article id P06012Article in journal (Refereed) Published
Abstract [en]

Silicon pixel detectors are at the core of the current and planned upgrade of the ATLAS experiment at the LHC. Given their close proximity to the interaction point, these detectors will be exposed to an unprecedented amount of radiation over their lifetime. The current pixel detector will receive damage from non-ionizing radiation in excess of 10(15) 1 MeV n(eq)/cm(2), while the pixel detector designed for the high-luminosity LHC must cope with an order of magnitude larger fluence. This paper presents a digitization model incorporating effects of radiation damage to the pixel sensors. The model is described in detail and predictions for the charge collection efficiency and Lorentz angle are compared with collision data collected between 2015 and 2017 (<= 10(15) 1 MeV n(eq)/cm(2)).

Place, publisher, year, edition, pages
IOP PUBLISHING LTD , 2019. Vol. 14, article id P06012
Keywords [en]
Detector modelling and simulations II (electric fields, charge transport, multiplication and induction, pulse formation, electron emission, etc), Radiation-hard detectors, Solid state detectors
National Category
Subatomic Physics Accelerator Physics and Instrumentation
Identifiers
URN: urn:nbn:se:uu:diva-390026DOI: 10.1088/1748-0221/14/06/P06012ISI: 000472134700001OAI: oai:DiVA.org:uu-390026DiVA, id: diva2:1341251
Funder
Swedish Research CouncilEU, European Research CouncilEU, Horizon 2020Wallenberg Foundations
Note

For complete list of authors see http://dx.doi.org/10.1088/1748-0221/14/06/P06012

Available from: 2019-08-08 Created: 2019-08-08 Last updated: 2019-08-08Bibliographically approved

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Asimakopoulou, Eleni M.Bergeås Kuutmann, ElinBokan, PetarBrenner, RichardEkelöf, TordEllajosyula, VenugopalEllert, MattiasFerrari, ArnaudGradin, P. O. JoakimIsacson, MaxMårtensson, MikaelSales De Bruin, Pedro
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