15m長シンチレーションファイバーを用いた線量分布のオンライン評価

概要

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論文 , この論文は、2008 IEEE Nuclear Science Symposiumでポスター発表した内容に、加筆し和文としてまとめなおしたものである。, Nohtomi, Akihiro , Itoh, TetsuoA 15m-long plastic scintillation fiber (PSF) detector has been applied to the on-line evaluation of spatial dose-distribution inside radiation facilities. The aim of this study is to realize the real-time measurement system which is not only simple but also reliable for monitoring use. Determination of radiation-incident points was made by the measurement of time difference that two directional signals of the scintillation light reach both ends of the PSF [so called “time-of-flight (TOF) method” ]. The PSF used had practically enough sensitivity to detect both fast neutrons and gamma-rays.