Spectrophotometric determination of the optimal wavelength for a polymer-gel dosimeter
- Authors
- Chang, Kyung Hwan; Lee, Suk; Cao, Yuan Jie; Shim, Jang Bo; Lee, Jung Ae; Yang, Dae Sik; Park, Young Je; Yoon, Won Sup; Kim, Chul Yong; Cho, Sam Ju; Lee, Sang Hoon; Kim, Woo Chul; Min, Chul Kee; Cho, Kwang Hwan; Huh, Hyun Do
- Issue Date
- 4월-2013
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Polymer gel; Optimal wavelength; Spectrophotometer; Absorbance; Dose linearity
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.62, no.8, pp.1194 - 1198
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 62
- Number
- 8
- Start Page
- 1194
- End Page
- 1198
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/103663
- DOI
- 10.3938/jkps.62.1194
- ISSN
- 0374-4884
- Abstract
- The purpose of this study was to determine the optimal wavelength for a polymer-gel dosimeter previously developed by our research groups; this was done through a spectrophotometric characterization of its dosimetric properties. A gel sample was irradiated with a 6-MV photon beam from a linear accelerator, and its response was spectrophotometrically analyzed. The absorbance, dose linearity, reproducibility, and dose-rate dependence of the dosimeter were evaluated at various wavelengths and doses. The absorbance of the polymer-gel dosimeter did not show any peak sensitivity within the studied range of wavelengths. For the range of doses studied, the best dose linearity was recorded, with an R-2 of 0.9701 at a wavelength of 400 nm. The reproducibility of the results was excellent, and the error in the dose-rate dependence was within the range of +/- 3%. The gel dosimeter displayed a very stable response, thus confirming the efficiency of this 3D dosimeter.
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- Appears in
Collections - Graduate School > Department of Biomedical Sciences > 1. Journal Articles
- College of Medicine > Department of Medical Science > 1. Journal Articles
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