An improved method for bulk hydrogen analysis using epithermal neutrons

被引：3
|
作者：
Doczi, R. [1 ]
Csikai, J. [1 ,2 ]
机构：
[1] Hungarian Acad Sci, Inst Nucl Res, H-4001 Debrecen, Hungary
[2] Univ Debrecen, Inst Expt Phys, H-4010 Debrecen 10, Hungary
来源：
APPLIED RADIATION AND ISOTOPES | 2008年 / 66卷 / 12期
关键词：
Neutron moderation; Neutron reflectometry; Neutron scattering;
D O I：
10.1016/j.apradiso.2008.06.010
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The advantages of direct detection of thermalized neutrons as compared to the activation method used for bulk hydrogen analysis have been investigated. In both cases samples of 10 cm diameter and 8 cm height dimensions were used. It was found that the new method based on a small BF3 counter placed along the central line of the cylindrical samples renders the determination of hydrogen contents routinely possible using a few minutes measuring time and a low intensity (similar to 18.5 GBq) neutron source. A preliminary investigation has shown that the direct detection of neutrons can be used for analysis of samples as large as about 201. Details of this technique and its applications will be discussed in the next paper. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1870 / 1872
页数：3
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