TY - JOUR
T1 - Evaluation of the basic properties of the BANGkit™ gel dosimeter
AU - Murakami, Y.
AU - Nakashima, T.
AU - Watanabe, Y.
AU - Akimitsu, T.
AU - Matsuura, K.
AU - Kenjo, M.
AU - Kaneyasu, Y.
AU - Wadasaki, K.
AU - Hirokawa, Y.
AU - Ito, K.
PY - 2007/4/21
Y1 - 2007/4/21
N2 - We evaluated the basic properties of a commercially available BANGkit™ gel dosimeter, which is a normoxic type of BANG® gel. This gel-kit has the same composition as the BANG®3 gel, but is fully oxygenated. To exclude oxygen, oxygen scavenging ascorbic acid and copper sulfate as a catalyst are used. The properties that we examined are the effects of the concentrations of copper sulfate and ascorbic acid on the response, the reproducibility, the long-term stability, the temperature effect at irradiation and the dose-rate effect. In our results, the excellent linear fit of the R 2-dose response in a dose range for clinical use and its reproducibility were observed. The precision of a linear fit was preserved for about 3 weeks. The temperature at irradiation showed a significant effect on the dose response. Although the dose-rate dependence in the high-dose range was observed, it was negligible for the clinical dose range up to 270 cGy. In conclusion, this gel dosimeter is thought to be utilizable in clinical practice, while we have to pay attention to the temperature during the entire measurement processes, and additionally there is room for improvement in the linearity and the dose-rate dependence in the high-dose range.
AB - We evaluated the basic properties of a commercially available BANGkit™ gel dosimeter, which is a normoxic type of BANG® gel. This gel-kit has the same composition as the BANG®3 gel, but is fully oxygenated. To exclude oxygen, oxygen scavenging ascorbic acid and copper sulfate as a catalyst are used. The properties that we examined are the effects of the concentrations of copper sulfate and ascorbic acid on the response, the reproducibility, the long-term stability, the temperature effect at irradiation and the dose-rate effect. In our results, the excellent linear fit of the R 2-dose response in a dose range for clinical use and its reproducibility were observed. The precision of a linear fit was preserved for about 3 weeks. The temperature at irradiation showed a significant effect on the dose response. Although the dose-rate dependence in the high-dose range was observed, it was negligible for the clinical dose range up to 270 cGy. In conclusion, this gel dosimeter is thought to be utilizable in clinical practice, while we have to pay attention to the temperature during the entire measurement processes, and additionally there is room for improvement in the linearity and the dose-rate dependence in the high-dose range.
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U2 - 10.1088/0031-9155/52/8/017
DO - 10.1088/0031-9155/52/8/017
M3 - Article
C2 - 17404470
AN - SCOPUS:34147095276
SN - 0031-9155
VL - 52
SP - 2301
EP - 2311
JO - Physics in Medicine and Biology
JF - Physics in Medicine and Biology
IS - 8
M1 - 017
ER -