Basic radiological characteristics of a non-scattering gel dosimeter for 3D dosimetry
- Authors
- Chang, Kyung Hwan; Ji, Yunseo; Lee, Suk; Kim, Kwang Hyeon; Yang, Dae Sik; Lee, Jung Ae; Park, Young Je; Yoon, Won Sup; Kim, Chul Yong; Cao, Yuanjie; Cho, Samju
- Issue Date
- 12월-2016
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Non-scattering gel; PRESAGE (TM) gel dosimeter; Radiochromic gel; Radiological properties; Spectrophotometer
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.69, no.11, pp.1694 - 1699
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 69
- Number
- 11
- Start Page
- 1694
- End Page
- 1699
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/86666
- DOI
- 10.3938/jkps.69.1694
- ISSN
- 0374-4884
- Abstract
- We used a spectrophotometer to compare the dosimetric properties of two non-scattering (radiochromic) gel dosimeters: a non-scattering gel dosimeter developed in-house and a PRESAGE (TM) gel dosimeter. We evaluated the dosimetric characteristics, including spectral absorption, dose linearity, reproducibility, and dose rate dependency of the two gel dosimeters. The non-scattering gel and the PRESAGE (TM) gel dosimeters showed peak sensitivity at wavelengths of 600 nm and 630 nm, respectively. Over a range of doses the best dose linearities of the non-scattering and the PRESAGE (TM) gel dosimeters resulted in R-2 values of 0.99 at wavelengths of 600 nm and 630 nm, respectively. The reproducibility and dose-rate dependence of each of the two gel dosimeters were within the range of +/- 3 %. Our results revealed that the peak sensitivities of the two radiochromic gel dosimeters were significantly different; the in-house non-scattering gel dosimeter demonstrated peak sensitivity at a wavelength of 600 nm while the PRESAGE (TM) gel dosimeter had peak sensitivity at a wavelength of 630 nm. We confirmed that for 3D gel dosimetry, the in-house non-scattering gel dosimeter had a more stable dose response compared with a commercial non-scattering gel dosimeter.
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Collections - Graduate School > Department of Biomedical Sciences > 1. Journal Articles
- College of Medicine > Department of Medical Science > 1. Journal Articles
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