A high sensitive fission neutron detector system with a lead slot collimator

被引：5

作者：

Ouyang, XP ^{[1
]}

Li, ZF

Wang, QS

Huo, YK

Ma, YL

Zhang, QM

Zhang, GG

Jin, YR

机构：

[1] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

[2] NW Inst Nucl Technol, Xian 710024, Peoples R China

[3] Fudan Univ, Inst Modern Phys, Shanghai 200433, Peoples R China

来源：

ACTA PHYSICA SINICA | 2005年 / 54卷 / 10期

关键词：

neutron detection; high sensitivity; high eta/gamma discrimination; fission; Be backing;

D O I：

10.7498/aps.54.4643

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A fission neutron detector system with frontward- extended lead slot collimator has been developed and tested. By designing the slot collimator and developing large area PIN detectors as well as large area fissionable target with thin Be backing, this detector system can reach high neutron sensitivities up to 10-(16) C(.)cm(2) which is about 4-5 orders of magnitude higher than that of existing fission detectors, and high n/gamma discrimination ratio up to 30.

引用

页码：4643 / 4647

页数：5