The neutron cross section standards, evaluations and applications

被引：25
作者：
Carlson, A. D. [1 ]
机构：
[1] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA
来源：
METROLOGIA | 2011年 / 48卷 / 06期
关键词：
NN COUPLING-CONSTANT; ENERGY-RANGE; DETECTOR; FISSION; SCATTERING; U-235; LI-6(N; T)HE-4; SCINTILLATOR;
D O I：
10.1088/0026-1394/48/6/S09
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The measurement of a neutron cross section can be simplified if it is measured relative to a neutron cross section standard. Then it is not necessary to measure the neutron fluence. The standards in effect provide determinations of the neutron fluence. These standards are not defined standards but instead working standards. As such it is important to make measurements to improve the quality of the standards. Also better techniques for evaluating the standards must be promoted. The history of the evaluation process for the standards is discussed from the first rather primitive one to the latest very sophisticated evaluation that was an international cooperative effort. An overview of the main detectors used for applications of the standards is given.
引用
收藏
页码：S328 / S345
页数：18
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