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High linearity silicon carbide detectors for medical applications

Silicon carbide is well known as a radiation hard semiconductor, that has been demonstrated in a range of detector structures for deployment in application where the ability to tolerate high radiation dose is imperative. This includes applications in space and nuclear environments, where the abil...

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Main Authors: Nurul Syazwina, M., Horsfall, A.B
Format: Conference or Workshop Item
Language:English
Published: 2016
Subjects:
Q Science (General)
R Medicine (General)
Online Access:http://eprints.unisza.edu.my/568/1/FH03-FSK-18-18313.pdf
http://eprints.unisza.edu.my/568/
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spelling my-unisza-ir.5682020-10-25T06:10:49Z http://eprints.unisza.edu.my/568/ High linearity silicon carbide detectors for medical applications Nurul Syazwina, M. Horsfall, A.B Q Science (General) R Medicine (General) Silicon carbide is well known as a radiation hard semiconductor, that has been demonstrated in a range of detector structures for deployment in application where the ability to tolerate high radiation dose is imperative. This includes applications in space and nuclear environments, where the ability to detect highly energetic radiation is important. In contrast, medical treatment uses a range of radiation dose rates and energies and here we investigate the response and linearity of a highly radiation tolerant detector fabricated using silicon carbide to dose rates in the range of 0.185mGy.min−1. This dose rate is typical of those used for medical imaging purposes, rather than radiotherapy treatment. The data show that the generated current originates within the depletion region of the detector and that the response is linearly dependent on the volume of the space charge region. The realization of a vertical detector structure, coupled with the high quality of epitaxial layers, has resulted in a linearity and sensitivity of the detector that are significantly higher than those published previously for moderate dose rate testing. 2016 Conference or Workshop Item NonPeerReviewed text en http://eprints.unisza.edu.my/568/1/FH03-FSK-18-18313.pdf Nurul Syazwina, M. and Horsfall, A.B (2016) High linearity silicon carbide detectors for medical applications. In: 2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD), 29 October 2016, Strasbourg, France.
institution Universiti Sultan Zainal Abidin
building UNISZA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sultan Zainal Abidin
content_source UNISZA Institutional Repository
url_provider https://eprints.unisza.edu.my/
language English
topic Q Science (General)
R Medicine (General)
spellingShingle Q Science (General)
R Medicine (General)
Nurul Syazwina, M.
Horsfall, A.B
High linearity silicon carbide detectors for medical applications
description Silicon carbide is well known as a radiation hard semiconductor, that has been demonstrated in a range of detector structures for deployment in application where the ability to tolerate high radiation dose is imperative. This includes applications in space and nuclear environments, where the ability to detect highly energetic radiation is important. In contrast, medical treatment uses a range of radiation dose rates and energies and here we investigate the response and linearity of a highly radiation tolerant detector fabricated using silicon carbide to dose rates in the range of 0.185mGy.min−1. This dose rate is typical of those used for medical imaging purposes, rather than radiotherapy treatment. The data show that the generated current originates within the depletion region of the detector and that the response is linearly dependent on the volume of the space charge region. The realization of a vertical detector structure, coupled with the high quality of epitaxial layers, has resulted in a linearity and sensitivity of the detector that are significantly higher than those published previously for moderate dose rate testing.
format Conference or Workshop Item
author Nurul Syazwina, M.
Horsfall, A.B
author_facet Nurul Syazwina, M.
Horsfall, A.B
author_sort Nurul Syazwina, M.
title High linearity silicon carbide detectors for medical applications
title_short High linearity silicon carbide detectors for medical applications
title_full High linearity silicon carbide detectors for medical applications
title_fullStr High linearity silicon carbide detectors for medical applications
title_full_unstemmed High linearity silicon carbide detectors for medical applications
title_sort high linearity silicon carbide detectors for medical applications
publishDate 2016
url http://eprints.unisza.edu.my/568/1/FH03-FSK-18-18313.pdf
http://eprints.unisza.edu.my/568/
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score 13.211869

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