Dosimetric verification of annual quality assurance for a linear accelerator using a transmission type detector.

Dong Hyeok Choi, Jin Sung Kim, Rena Lee, So Hyun Ahn, Woo Sang Ahn

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Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Dong Hyeok ChoiDepartment of Medicine, Yonsei University College of Medicine, Seoul, South Korea.

Jin Sung KimDepartment of Medicine, Yonsei University College of Medicine, Seoul, South Korea.

Rena LeeDepartment of Biomedical Engineering, School of Medicine, Ewha Womans University, Seoul, South Korea.

So Hyun AhnEwha Medical Research Institute, School of Medicine, Ewha Womans University, Seoul, South Korea. mpsohyun@gmail.com.

Woo Sang AhnDepartment of Radiation Oncology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, South Korea. anidol@ulsan.ac.kr.

Funding

Asan Foundation 2021IC003Basic Science Research Program through a National Research Foundation of Korea (NRF) 2022R1H1A2092091Korea Institute of Energy Technology Evaluation and Planning (KETEP) 20227410100050

6 · The paper itself

Abstract

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

Identifiers

PMID37865666

DOI10.1038/s41598-020-65819-y

PMCPMC10590446

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.