A magnetic analyzer for magnetic proton recoil spectrometer and the spectrometer performance

ZHOU Lin JIANG Shilun QI Jianmin

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A magnetic analyzer for magnetic proton recoil spectrometer and the spectrometer performance

更新时间：2021-03-05

- A magnetic analyzer for magnetic proton recoil spectrometer and the spectrometer performance
- NUCLEAR TECHNIQUES Vol. 33, Issue 9, (2010)
- 作者机构：
  
  中国工程物理研究院核物理与化学研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC： TL817.3
- Published：01 September 2010
- 稿件说明：
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[1]周林,蒋世伦,祁建敏.磁质子反冲谱仪磁分析器的设计与谱仪性能研究[J].核技术,2010,33(09):683-687.

ZHOU Lin JIANG Shilun QI Jianmin. A magnetic analyzer for magnetic proton recoil spectrometer and the spectrometer performance[J]. Nuclear techniques, 2010, 33(9): 683-687.
[1]周林,蒋世伦,祁建敏.磁质子反冲谱仪磁分析器的设计与谱仪性能研究[J].核技术,2010,33(09):683-687. DOI：

ZHOU Lin JIANG Shilun QI Jianmin. A magnetic analyzer for magnetic proton recoil spectrometer and the spectrometer performance[J]. Nuclear techniques, 2010, 33(9): 683-687. DOI：

摘要

设计一种用于紧凑型磁质子反冲（magnetic proton recoil

MPR）谱仪的小型单聚焦磁分析器

用钕铁硼二级永磁铁作分析磁铁

焦平面探测器为CR39。用实际磁铁的磁场分布数据和带电粒子输运程序分析磁分析器的性能

并用Pu-239α源实验标定。结合粒子输运程序的结算和蒙特卡罗模拟

研究了MPR谱仪的整体性能。结果表明:磁分析器能对3.5-8.5MeV范围内的质子和α粒子进行动量分析

有良好的动量色散和径向聚焦能力

符合紧凑型MPR谱仪的设计要求;对14MeV的DT聚变中子

谱仪有4%的能量分辨率和10-8的探测效率。

Abstract

A compact magnetic analyzer for magnetic proton recoil spectrometer has been developed at CAEP.Nd-Fe-B permanent dipole is used as the analyzing magnet

with a focal plane detector of CR39.Performance of the analyzer was studied with the actual magnetic field distribution and charged particle transport code.Experiments were performed with a 239Pu α source.Capability of the spectrometer was studied with Monte Carlo simulations and the transport code.The results show that proton and alpha particles of 3.5-8.5 MeV can be analyzed by the magnetic analyzer with an excellent capability of momentum dispersion and radial focuses

which meet the requirements of compact MPR spectrometer.The MPR spectrometer has an energy resolution of about 4% and detection efficiency of about 10-8 for DT fusion neutrons.

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