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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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