Development of a fast neutron radiography converter using wavelength-shifting fibers

被引：10
|
作者：
Matsubayashi, M [1 ]
Hibiki, T
Mishima, K
Yoshii, K
Okamoto, K
机构：
[1] Japan Atom Energy Res Inst, Ctr Proton Accelerator Facilities, Tokai, Ibaraki 3191195, Japan
[2] Kyoto Univ, Inst Res Reactor, Osaka 5900494, Japan
[3] Univ Tokyo, Nucl Engn Res Lab, Tokai, Ibaraki 3191106, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2003年 / 510卷 / 03期
关键词：
fast neutron radiography; fluorescent converter; wavelength-shifting fiber; electronic imaging;
D O I：
10.1016/S0168-9002(03)01810-2
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A fluorescent converter for fast neutron radiography (FNR) comprising a scintillator and hydrogen-rich resin has been developed and applied to electronic imaging. The rate of the reaction between fast neutrons and the converter is increased by thickening the converter, but its opaqueness attenuates emitted light photons before they reach its surface. To improve the luminosity of a fluorescent converter for FNR, a novel type of converter was designed in which wavelength-shifting fibers were adopted to transport radiated light to the observation end face. The performance of the converter was compared with that of a polypropylene-based fluorescent converter in an experiment conducted at the fast-neutron-source reactor YAYOI in the University of Tokyo. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：325 / 333
页数：9
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