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Feasibility study on a novel tiny dosimeter using a barium titanate capacitor

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Title: Feasibility study on a novel tiny dosimeter using a barium titanate capacitor
Authors: Kuga, Yuma Browse this author
Ogawara, Ryo Browse this author →KAKEN DB
Ishikawa, Masayori Browse this author →KAKEN DB
Keywords: Barium Titanate capacitor
tiny dosimeter
in-vivo dosimeter
array dosimeter
Issue Date: Jan-2020
Publisher: Oxford University Press
Journal Title: Journal of Radiation Research
Volume: 61
Issue: 1
Start Page: 34
End Page: 43
Publisher DOI: 10.1093/jrr/rrz083
PMID: 31846039
Abstract: In our laboratory we have confirmed that the capacitance of barium titanate-based capacitors changes due to radiation. Since a commercially available capacitor is very small and inexpensive, it may be used as a multidimensional dose meter in which a large number of capacitor elements are arranged, or may be embedded in the body and used as an in-vivo dose meter. In this study we examined the usefulness of a dosimeter using the capacitance change of a barium titanate capacitor. As a basic property, it was confirmed that the dose linearity was good. With regard to dose rate characteristics and response to fractionated irradiation, capacitance change due to aging affects measurement accuracy, but online measurement of capacitance change immediately before irradiation can be performed to correct aging effects during irradiation. By doing this, we confirmed that the dose rate characteristics and the response to fractionated radiation are improved.
Type: article
Appears in Collections:保健科学院・保健科学研究院 (Graduate School of Health Sciences / Faculty of Health Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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