Stochastic simulation study of HPGe detector response and the effect of detector aging using Geant4
In this study the effect of detector aging in terms of increased dead layer thickness on detector efficiency has been studied using the Geant4 toolkit. Variation of energy deposition in the detector dead layer with the dead layer thickness has been quantified for various values of incident...
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| Format: | Article |
| Language: | English |
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VINCA Institute of Nuclear Sciences
2017-01-01
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| Series: | Nuclear Technology and Radiation Protection |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-3994/2017/1451-39941701057T.pdf |
| _version_ | 1818874714982973440 |
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| author | Tariq Hina Mirza Sikander M. Rehman Shakeel Ur Mirza Nasir M. |
| author_facet | Tariq Hina Mirza Sikander M. Rehman Shakeel Ur Mirza Nasir M. |
| author_sort | Tariq Hina |
| collection | DOAJ |
| description | In this study the effect of detector aging in terms of increased dead layer
thickness on detector efficiency has been studied using the Geant4 toolkit.
Variation of energy deposition in the detector dead layer with the dead
layer thickness has been quantified for various values of incident g-ray
energy considering point isotropic as well as extended sources including the
circular disk source and cylindrical volume sources. For the point
isotropic source, the Geant4 computed values of energy loss per particle in
the dead layer are found in good agreement with the corresponding published
results with maximum deviation remaining below 2 %. New results for
dependence of geometric, full-energy peak and total efficiency on dead layer
thickness have been studied using Geant4 simulations for various values of
g-ray energy, and for point isotropic and extended sources at various axial
and lateral positions. These simulations yield an exponentially decreasing
profile of detector aging sensitivity with an increase in g-ray energy for
point isotropic, circular disk and cylindrical volume sources highlighting a
larger decrease in efficiency due to aging for low energy photons. |
| first_indexed | 2024-12-19T13:15:00Z |
| format | Article |
| id | doaj.art-cabbbd04e8794ea1b3e67d28e414f01a |
| institution | Directory Open Access Journal |
| issn | 1451-3994 1452-8185 |
| language | English |
| last_indexed | 2024-12-19T13:15:00Z |
| publishDate | 2017-01-01 |
| publisher | VINCA Institute of Nuclear Sciences |
| record_format | Article |
| series | Nuclear Technology and Radiation Protection |
| spelling | doaj.art-cabbbd04e8794ea1b3e67d28e414f01a2022-12-21T20:19:51ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39941452-81852017-01-01321576910.2298/NTRP1701057T1451-39941701057TStochastic simulation study of HPGe detector response and the effect of detector aging using Geant4Tariq Hina0Mirza Sikander M.1Rehman Shakeel Ur2Mirza Nasir M.3Pakistan Institute of Engineering & Applied Sciences, Department of Physics & Applied Mathematics, Nilore, Islamabad, PakistanPakistan Institute of Engineering & Applied Sciences, Department of Physics & Applied Mathematics, Nilore, Islamabad, PakistanPakistan Institute of Engineering & Applied Sciences, Department of Physics & Applied Mathematics, Nilore, Islamabad, PakistanPakistan Institute of Engineering & Applied Sciences, Department of Physics & Applied Mathematics, Nilore, Islamabad, PakistanIn this study the effect of detector aging in terms of increased dead layer thickness on detector efficiency has been studied using the Geant4 toolkit. Variation of energy deposition in the detector dead layer with the dead layer thickness has been quantified for various values of incident g-ray energy considering point isotropic as well as extended sources including the circular disk source and cylindrical volume sources. For the point isotropic source, the Geant4 computed values of energy loss per particle in the dead layer are found in good agreement with the corresponding published results with maximum deviation remaining below 2 %. New results for dependence of geometric, full-energy peak and total efficiency on dead layer thickness have been studied using Geant4 simulations for various values of g-ray energy, and for point isotropic and extended sources at various axial and lateral positions. These simulations yield an exponentially decreasing profile of detector aging sensitivity with an increase in g-ray energy for point isotropic, circular disk and cylindrical volume sources highlighting a larger decrease in efficiency due to aging for low energy photons.http://www.doiserbia.nb.rs/img/doi/1451-3994/2017/1451-39941701057T.pdfHPGedead layerdetector agingdetection efficiencyMonte CarloGeant4 |
| spellingShingle | Tariq Hina Mirza Sikander M. Rehman Shakeel Ur Mirza Nasir M. Stochastic simulation study of HPGe detector response and the effect of detector aging using Geant4 Nuclear Technology and Radiation Protection HPGe dead layer detector aging detection efficiency Monte Carlo Geant4 |
| title | Stochastic simulation study of HPGe detector response and the effect of detector aging using Geant4 |
| title_full | Stochastic simulation study of HPGe detector response and the effect of detector aging using Geant4 |
| title_fullStr | Stochastic simulation study of HPGe detector response and the effect of detector aging using Geant4 |
| title_full_unstemmed | Stochastic simulation study of HPGe detector response and the effect of detector aging using Geant4 |
| title_short | Stochastic simulation study of HPGe detector response and the effect of detector aging using Geant4 |
| title_sort | stochastic simulation study of hpge detector response and the effect of detector aging using geant4 |
| topic | HPGe dead layer detector aging detection efficiency Monte Carlo Geant4 |
| url | http://www.doiserbia.nb.rs/img/doi/1451-3994/2017/1451-39941701057T.pdf |
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