Neutron-induced radionuclides in soil from the JCO campus by non-destructive γ-ray spectrometry

被引：4

作者：

Murata, Y ^{[1
]}

Muroyama, T ^{[1
]}

Kofuji, H ^{[1
]}

Yamamoto, M ^{[1
]}

Komura, K ^{[1
]}

机构：

[1] Kanazawa Univ, Low Level Radioact Lab, Tatsunokuchi, Ishikawa 9231224, Japan

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2000年 / 50卷 / 1-2期

关键词：

JCO criticality accident; Tokai-mura; neutron-induced radionuclides; soil; gamma-ray spectrometry;

D O I：

10.1016/S0265-931X(00)00063-1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Neutron-induced radionuclides in soil samples from the JCO campus were measured by non-destructive gamma-ray spectrometry. Na-24, Fe-59, Co-60,, and La-140 etc., all of which were produced by (n, gamma) reaction, were detected in the soil collected within 30-50 m of the precipitation tank. Meanwhile. the fast neutron product, Mn-54, produced by (n,p) reaction, was detected only in 5 samples collected at points close to the precipitation tank. Sc-46, produced both by thermal and fast neutrons from Sc-45 and Ti-46, was detected in most of the samples from the area within 70 m. A volatile fission product, I-131, was also detected in most samples. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：69 / 76

页数：8