Characterization of brown rice as a certified reference material for Fukushima accident-related radioactivity measurements

被引：7

作者：

Unno, Yasuhiro ^{[1
,2
]}

Hachinohe, Mayumi ^{[3
]}

Hamamatsu, Shioka ^{[3
]}

Todoriki, Setsuko ^{[3
]}

Yunoki, Akira ^{[1
]}

Miura, Tsutomu ^{[1
]}

机构：

[1] Natl Metrol Inst Japan, Tsukuba, Ibaraki, Japan

[2] Grad Univ Adv Studies Sokendai, Miura, Kanagawa, Japan

[3] Natl Food Res Inst, Tsukuba, Ibaraki, Japan

来源：

APPLIED RADIATION AND ISOTOPES | 2014年 / 87卷

关键词：

Certified reference material; Brown rice; Cs-134; Cs-137; Gamma-ray spectrometry; Fukushima Daiichi Nuclear Power Plant accident;

D O I：

10.1016/j.apradiso.2013.11.036

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We developed a certified reference material of brown rice to measure radioactivity from the Fukushima Daiichi Nuclear Power Plant accident. The rice was planted in the spring of 2011, just after the Fukushima accident occurred, and it was harvested in the autumn of 2011. The certified value of radioactivity concentration in the rice was 33.6 Bq kg(-1) of Cs-134 and 51.8 Bq kg(-1) of Cs-137 on August 1, 2012. The reference material is being widely distributed by the National Metrology Institute of Japan. To determine the radioactivity and its uncertainties in the brown rice, we employed gamma-ray spectrometry with a high-purity germanium detector and Monte Carlo simulation. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：485 / 488

页数：4

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