A portable radioactive plume monitor using a silicon photodiode

Perspectives in science Pub Date : 2019-09-01 DOI:10.1016/j.pisc.2019.100414

Yuki Tamakuma , Ryohei Yamada , Kazuki Iwaoka , Masahiro Hosoda , Tomohiro Kuroki , Hiroyuki Mizuno , Koji Yamada , Masahide Furukawa , Shinji Tokonami

引用次数: 1

Abstract

In this study, a portable radioactive plume monitor using a silicon photodiode was developed for the detection of a radioactive plume (e.g. ¹³¹I, ¹³⁴Cs and ¹³⁷Cs) 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.

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使用硅光电二极管的便携式放射性羽流监测仪

在本研究中，开发了一种使用硅光电二极管的便携式放射性羽流监测仪，用于在紧急情况下检测放射性羽流(例如131I、134Cs和137Cs)。结果表明，本底计数率与环境剂量当量率成正比，在20 μSv h−1的环境剂量当量率下，监测仪的检出限为187 Bq m−3。结果表明，采用优化厚度的铅屏蔽可以有效降低系统的检出限。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Perspectives in science

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