open access

https://hdl.handle.net/2115/77493

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

英語

array dosimeter

2020-01

Oxford University Press

Journal of Radiation Research

61(1)

34-43

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.

学術雑誌論文

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Creative Commons Attribution-NonCommercial 4.0 International

0449-3060