Proficiency testing with uncertainty evaluation for measuring activities per unit mass of 134Cs and 137Cs in brown rice in Japan

被引：2

作者：

Furukawa, R. ^{[1
]}

Unno, Y. ^{[1
]}

Miura, T. ^{[1
]}

Yunoki, A. ^{[1
]}

Hachinohe, M. ^{[2
]}

Hamamatsu, S. ^{[2
]}

Itadzu, H. ^{[3
]}

Mizui, M. ^{[3
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Natl Metrol Inst Japan, 1-1-1 Umezono, Tsukuba, Ibaraki, Japan

[2] Natl Agr & Food Res Org, Food Res Inst, 2-1-12 Kannondai, Tsukuba, Ibaraki, Japan

[3] SEIKO EG&G Co Ltd, Mihama Ku, 1-8 Nakase, Chiba, Chiba, Japan

来源：

APPLIED RADIATION AND ISOTOPES | 2017年 / 126卷

关键词：

Proficiency testing; Cs-134; Cs-137; Uncertainty; E-n value;

D O I：

10.1016/j.apradiso.2017.03.024

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In Japan, we conducted proficiency testing of activity measurement by using high-purity germanium detectors for Cs-134 and Cs-137 in brown rice grains. Among 176 reported results, 86 % (for Cs-134) and 93 % (for Cs-137) of the results satisfied vertical bar En vertical bar <= 1. However, 58 reports for Cs-134 and 51 reports for Cs-137 had some failures in their evaluations of uncertainties. The proficiency testing was effective to improve the ability of uncertainty evaluation.

引用

页码：249 / 251

页数：3

共 8 条

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[7] Characterization of brown rice as a certified reference material for Fukushima accident-related radioactivity measurements
Unno, Yasuhiro
Hachinohe, Mayumi
Hamamatsu, Shioka
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Yunoki, Akira
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[J]. APPLIED RADIATION AND ISOTOPES, 2014, 87 : 485 - 488
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