Calibration Of A 14 MeV Neutron Generator With Reference To NBS-1

被引：2
|
作者：
Heimbach, Craig R. [1 ]
机构：
[1] NIST, Gaithersburg, MD 20899 USA
来源：
APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST INTERNATIONAL CONFERENCE | 2011年 / 1336卷
关键词：
neutron; calibration; NBS-1; DT; DD; 14; MeV;
D O I：
10.1063/1.3586137
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
NBS-1 is the US national neutron reference source. It has a neutron emission rate (June 1961) of 1.257x10(6) n/s(1,2,3) with an uncertainty of 0.85% (k=1). Neutron emission-rate calibrations performed at the National Institute of Standards and Technology (NIST) are made in comparison to this source, either directly or indirectly. To calibrate a commercial 14 MeV neutron generator, NIST performed a set of comparison measurements to evaluate the neutron output relative to NBS-1. The neutron output of the generator was determined with an uncertainty of about 7% (k=1). The 15-hour half-life of one of the reactions used also makes possible off-site measurements. Consideration is given to similar calibrations for a 2.5 MeV neutron generator.
引用
收藏
页码：437 / 443
页数：7
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