A portable radioactive plume monitor using a silicon photodiode: University of the Ryukyus Repository


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Title	:	A portable radioactive plume monitor using a silicon photodiode
Authors	:	Tamakuma, Yuki Yamada, Ryohei Iwaoka, Kazuki Hosoda, Masahiro Kuroki, Tomohiro Mizuno, Hiroyuki Yamada, Koji Furukawa, Masahide Tokonami, Shinji
Issue Date	:	Sep-2019
Abstract	:	In this study, a portable radioactive plume monitor using a silicon photodiode was developed for the detection of a radioactive plume (e.g. ^<131>I, ^<134>Cs and ^<137>Cs) in an emergency situation. It was found that the background count rate was proportional to ambient dose equivalent rate and the detection limit for the monitor at 20 μSv h^<−1> as an ambient dose equivalent rate was evaluated to be 187 Bq m^<−3> using the ISO11929 method. These results suggest that the detection limit for the system can be decreased effectively by lead shielding with optimized thickness.
URL	:	https://doi.org/10.1016/j.pisc.2019.100414
Type Local	:	雑誌掲載論文
ISSN	:	2213-0209
Publisher	:	Elsevier
URI	:	http://hdl.handle.net/20.500.12000/47105
Citation	:	Perspectives in Science Vol.12
Appears in Collections	:	Peer-reviewed Journal Articles (Faculty of Science)

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