Gamma-ray sensitivity and shielding of a neutron imaging plate

被引：15

作者：

Haga, YK ^{[1
]}

Kumazawa, S ^{[1
]}

Niimura, N ^{[1
]}

机构：

[1] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

来源：

JOURNAL OF APPLIED CRYSTALLOGRAPHY | 1999年 / 32卷

关键词：

D O I：

10.1107/S0021889899005701

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The energy dependence of gamma-ray sensitivity of a neutron imaging plate (NIP) has been measured. The gamma-ray sensitivity is equivalent to one half that of a thermal neutron at a gamma-ray energy less than 300 keV, and 1/40 at greater than 300 keV. The shielding of the NIP, by lead, from gamma rays in the experimental hall of the reactor JRR-3M of the Japan Atomic Energy Research Institute (JAERI) was measured. It was found that lead of thickness 40 mm is sufficient to reduce the gamma-ray background to 1/10 on a normalized scale. Covering the NIP with lead foil of thickness 1 mm results in a decrease of the gamma-ray background without reduction of the neutron signal.

引用

页码：878 / 882

页数：5

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