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Dosimetric verification of annual quality assurance for a linear accelerator using a transmission type detector
The purpose of our study is to establish an efficient quality assurance (QA) procedure using a transmission-type detector (IBA, Stealth chamber), a reference signal detector, as a field chamber. Relative dosimetry items, including monitor unit linearity, output constancy based on dose rate and field...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10590446/ https://www.ncbi.nlm.nih.gov/pubmed/37865666 http://dx.doi.org/10.1038/s41598-023-45114-2 |
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author | Choi, Dong Hyeok Kim, Jin Sung Lee, Rena Ahn, So Hyun Ahn, Woo Sang |
author_facet | Choi, Dong Hyeok Kim, Jin Sung Lee, Rena Ahn, So Hyun Ahn, Woo Sang |
author_sort | Choi, Dong Hyeok |
collection | PubMed |
description | The purpose of our study is to establish an efficient quality assurance (QA) procedure using a transmission-type detector (IBA, Stealth chamber), a reference signal detector, as a field chamber. Relative dosimetry items, including monitor unit linearity, output constancy based on dose rate and field size, and output factor were measured and compared with results obtained from the Farmer-type chamber (IBA, Wellhofer, FC65-G). Moreover, output for each field size was measured to assess its applicability to small fields. Results using the Stealth chamber were in good agreement with the FC65-G within 1.0%, except for output constancy according to gantry angle, which had a 1.1% error rate for the Stealth chamber and 2.7% for the FC65-G. Differences of up to − 6.26% output factor were observed for the Stealth chamber and up to − 0.56% for the CC-13 ionization chamber (IBA) in the 3 × 3 cm(2) field. Our study confirmed the possibility of using Stealth chambers for relative dosimetry measurement in QA. |
format | Online Article Text |
id | pubmed-10590446 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-105904462023-10-23 Dosimetric verification of annual quality assurance for a linear accelerator using a transmission type detector Choi, Dong Hyeok Kim, Jin Sung Lee, Rena Ahn, So Hyun Ahn, Woo Sang Sci Rep Article The purpose of our study is to establish an efficient quality assurance (QA) procedure using a transmission-type detector (IBA, Stealth chamber), a reference signal detector, as a field chamber. Relative dosimetry items, including monitor unit linearity, output constancy based on dose rate and field size, and output factor were measured and compared with results obtained from the Farmer-type chamber (IBA, Wellhofer, FC65-G). Moreover, output for each field size was measured to assess its applicability to small fields. Results using the Stealth chamber were in good agreement with the FC65-G within 1.0%, except for output constancy according to gantry angle, which had a 1.1% error rate for the Stealth chamber and 2.7% for the FC65-G. Differences of up to − 6.26% output factor were observed for the Stealth chamber and up to − 0.56% for the CC-13 ionization chamber (IBA) in the 3 × 3 cm(2) field. Our study confirmed the possibility of using Stealth chambers for relative dosimetry measurement in QA. Nature Publishing Group UK 2023-10-21 /pmc/articles/PMC10590446/ /pubmed/37865666 http://dx.doi.org/10.1038/s41598-023-45114-2 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Choi, Dong Hyeok Kim, Jin Sung Lee, Rena Ahn, So Hyun Ahn, Woo Sang Dosimetric verification of annual quality assurance for a linear accelerator using a transmission type detector |
title | Dosimetric verification of annual quality assurance for a linear accelerator using a transmission type detector |
title_full | Dosimetric verification of annual quality assurance for a linear accelerator using a transmission type detector |
title_fullStr | Dosimetric verification of annual quality assurance for a linear accelerator using a transmission type detector |
title_full_unstemmed | Dosimetric verification of annual quality assurance for a linear accelerator using a transmission type detector |
title_short | Dosimetric verification of annual quality assurance for a linear accelerator using a transmission type detector |
title_sort | dosimetric verification of annual quality assurance for a linear accelerator using a transmission type detector |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10590446/ https://www.ncbi.nlm.nih.gov/pubmed/37865666 http://dx.doi.org/10.1038/s41598-023-45114-2 |
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