Ni-Cr alloy as neutron flux monitor:: Composition and homogeneity assessment by NAA

被引：54

作者：

França, EJ ^{[1
]}

Fernandes, EAD ^{[1
]}

Bacchi, MA ^{[1
]}

机构：

[1] Univ Sao Paulo, Ctr Energia Nucl Agr, CENA USP, BR-13400970 Piracicaba, SP, Brazil

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2003年 / 257卷 / 01期

关键词：

D O I：

10.1023/A:1024705628697

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A Ni-Cr alloy was chosen as an in-house reference material for neutron flux measurement due to the well-known physical constants of the nuclides of interest and its low cost. The quantification of the Cr and Ni content was performed by neutron activation analysis (NAA), using certified reference materials from NIST as comparators. The concentrations and standard combined uncertainties were 19.62+/-0.07% for Cr and 80.2+/-1.1% for Ni, and the material is very homogeneous for Cr and moderate homogeneous for Ni.

引用

页码：113 / 115

页数：3

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