Epithermal neutron activation analysis and its application in the miniature neutron source reactor

被引：25

作者：

Hou, XL

Wang, K

Chai, CF

机构：

[1] ACAD SINICA,LAB NUCL ANALYT TECH,BEIJING 100080,PEOPLES R CHINA

[2] INST ATOM ENERGY,BEIJING 102413,PEOPLES R CHINA

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1996年 / 210卷 / 01期

关键词：

D O I：

10.1007/BF02055413

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The cadmium and boron ratios from 44 elements, totally 66 nuclides, were determined in the inner and outer irradiation sites of the Miniature Neutron Source Reactor (MNSR), China Institute of Atomic Energy. A permanent Cd-shielded epithermal neutron irradiation site has been designed and installed in the outer of the beryllium reflector of this reactor. Elements e.g., I, Br, Sr, Si, Th and U in biological samples, such as foodstuff, water and blood, geological and environmental samples, such as soil, rock, sediment and vegetable leaves were analyzed by BN-shielded epithermal neutron activation analysis (ENAA), and Au, As, Sb, Th and U by Cd-shielded ENAA. The results show that the detection limits of these elements by ENAA are better by a factor of 1.5-7 than those with conventional NAA.

引用

页码：137 / 148

页数：12

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