VARIATION OF NEUTRON-FLUX AND RELATED PARAMETERS IN AN IRRADIATION CONTAINER, IN USE WITH K0-BASED NEUTRON-ACTIVATION ANALYSIS

被引：25

作者：

BODE, P

BLAAUW, M

OBRUSNIK, I

机构：

[1] Interfaculty Reactor Institute, Delft University of Technology, Delft

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1992年 / 157卷 / 02期

关键词：

D O I：

10.1007/BF02047445

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Profiles of thermal flux, epithermal flux, f and alpha have been determined for a multi-sample irradiation container in use with k0-based NAA. It could be concluded that for accurate NAA with the IRI-reactor, samples should be surrounded by at least two thermal flux monitors. Since f and alpha-values were found to vary considerably between irradiations as compared to the variations within one container, the possibility of determining f and alpha just once for the irradiation facility used, and monitoring only the thermal flux in future irradiations, was ruled out. The use of average values for f and alpha within a container was shown to yield unacceptable inaccuracies mainly for Zr and U determinations.

引用

页码：301 / 312

页数：12

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