Study on the novel neutron-to-proton convertor for improving the detection efficiency of a triple GEM based fast neutron detector

A high-efficiency fast neutron detector prototype based on a triple Gas Electron Multiplier（GEM） detector, which, coupled with a novel multi-layered high-density polyethylene（HDPE） as a neutron-to-proton converter for improving the neutron detection efficiency, is introduced and tested with the Am-B...

Full description

Saved in:
Bibliographic Details
Published in中国物理C：英文版 no. 2; pp. 39 - 43
Main Author 王晓冬 杨贺润 任忠国 张俊伟 杨磊 张春晖 哈日巴拉 安旅行 胡碧涛
Format Journal Article
LanguageEnglish
Published 2015
Subjects
中子探测器
创业板
检测效率
气体电子倍增器
能量分辨率
质子
转换器
高三
Online AccessGet full text

Cover

More Information
Summary:A high-efficiency fast neutron detector prototype based on a triple Gas Electron Multiplier（GEM） detector, which, coupled with a novel multi-layered high-density polyethylene（HDPE） as a neutron-to-proton converter for improving the neutron detection efficiency, is introduced and tested with the Am-Be neutron source in the Institute of Modern Physics（IMP） at Lanzhou in the present work. First, the developed triple GEM detector is tested by measuring its effective gain and energy resolution with55 Fe X-ray source to ensure that it has a good performance.The effective gain and obtained energy resolution is 5.0×104and around 19.2%, respectively. Secondly, the novel multi-layered HDPE converter is coupled with the cathode of the triple GEM detector making it a high-efficiency fast neutron detector. Its effective neutron response is four times higher than that of the traditional single-layered conversion technique when the converter layer number is 38.
Bibliography:Gas Electron Multiplier, deposited energy, Am-Be neutron source, neutron detection efficiency, fast neutron detector
WANG Xiao-Dong, YANG He-Run, REN Zhong-Guo, ZHANG Jun-Wei, YANG Lei, ZHANG Chun-Hui, HA ai-Ba-La,AN Lii-Xing , HU Bi-Tao（1 School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China 2 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China 3 China Academy of Engineering Physics, Mianyang 621907, China 4 Inner Mongolia Center for Disease Control and Prevention, Hohhot, 010031, China 5 LWD Logging Center, China Petroleum Logging CO. LTD., Xi＇an 710000, China）
11-5641/O4
A high-efficiency fast neutron detector prototype based on a triple Gas Electron Multiplier（GEM） detector, which, coupled with a novel multi-layered high-density polyethylene（HDPE） as a neutron-to-proton converter for improving the neutron detection efficiency, is introduced and tested with the Am-Be neutron source in the Institute of Modern Physics（IMP） at Lanzhou in the present work. First, the developed triple GEM detector is tested by measuring its effective gain and energy resolution with55 Fe X-ray source to ensure that it has a good performance.The effective gain and obtained energy resolution is 5.0×104and around 19.2%, respectively. Secondly, the novel multi-layered HDPE converter is coupled with the cathode of the triple GEM detector making it a high-efficiency fast neutron detector. Its effective neutron response is four times higher than that of the traditional single-layered conversion technique when the converter layer number is 38.
ISSN:1674-1137
0254-3052