Disturbing signal analysis of fast neutron energy spectrum measurement with FNS-100 proportional counter

YE Longchun JIANG Xinbiao

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Disturbing signal analysis of fast neutron energy spectrum measurement with FNS-100 proportional counter

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- Disturbing signal analysis of fast neutron energy spectrum measurement with FNS-100 proportional counter
- NUCLEAR TECHNIQUES Issue 10, (2006)
- 作者机构：
  
  1. 西北核技术研究所
  2. 西北核技术研究所,西安,710024
- 作者简介：
- 基金信息：
- DOI：
  CLC： TL811.2
- Published：01 October 2006
- 稿件说明：
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[1]叶龙春,江新标.FNS-100正比计数器用于测量快中子场能谱时的干扰分析[J].核技术,2006(10):738-741.

YE Longchun JIANG Xinbiao. Disturbing signal analysis of fast neutron energy spectrum measurement with FNS-100 proportional counter[J]. Nuclear techniques, 2006, (10): 738-741.
[1]叶龙春,江新标.FNS-100正比计数器用于测量快中子场能谱时的干扰分析[J].核技术,2006(10):738-741. DOI：

YE Longchun JIANG Xinbiao. Disturbing signal analysis of fast neutron energy spectrum measurement with FNS-100 proportional counter[J]. Nuclear techniques, 2006, (10): 738-741. DOI：

摘要

为了了解FNS-100正比计数器用于测量快中子场能谱时干扰信号的特性

本文计算分析了60Co产生的低能γ射线以及7MeV和10MeV的高能γ射线所产生的干扰

同时模拟了反冲3He核、反冲质子在该正比计数器中产生的干扰影响。计算结果表明

γ射线对快中子能谱测量几乎没有影响

而反冲3He核和反冲质子存在比较大的影响。

Abstract

In order to study the character of disturbing signals in the measurement of fast neutron field with FNS-100 proportional counter

spectra of the low energy gamma rays produced by 60Co as well as 7 MeV and 10 MeV high energy gamma rays are calculated and analyzed. In addition

the disturbance from 3He recoil and proton recoil are simulated. The results show that gamma rays give little effect on the measurement of fast neutron energy spectra

but 3He recoil and proton recoil have considerable effect on it.

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