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Characterization of γ-rays at MAST
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
2019 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The γ-ray characterizing possibility of the neutron collimated flux monitor (in short, Neutron Camera) at the Mega Ampere Spherical Tokamak (MAST) is explored. Typically used to monitor neutron emission, the Neutron Camera has excellent neutron/γ-ray discrimination properties and thus presents the opportunity to measure spatially and temporally resolved γ-ray emission - a possibility of an additional fusion diagnostics method with already existing equipment. An Online Data Analysis (ODA) code was used to analyze the data on γ-rays from several plasma discharges with similar plasma parameters. A high statistics temporal distribution of the γ-ray emission and a lower statistics spatial distribution were analyzed. However, the low energy resolution and range for the Neutron Camera γ-ray measurements revealed few conclusive results on the origin of the higher energy γ-rays. Detection systems with higher energy resolution and range are suggested for an extensive analysis of γ-ray emission at MAST Upgrade.

Place, publisher, year, edition, pages
2019. , p. 15
Series
FYSAST ; FYSKAND1101
Keywords [en]
fusion, MAST, MAST upgrade, neutron collimated flux monitor, neutron camera, gamma-ray
National Category
Accelerator Physics and Instrumentation Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:uu:diva-388424OAI: oai:DiVA.org:uu-388424DiVA, id: diva2:1333081
Educational program
Bachelor Programme in Physics
Supervisors
Examiners
Available from: 2019-07-02 Created: 2019-06-29 Last updated: 2019-07-02Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • vancouver
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  • en-GB
  • en-US
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  • nn-NB
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Output format
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