Nuclear Techniques ›› 2019, Vol. 42 ›› Issue (12): 120502-120502.doi: 10.11889/j.0253-3219.2019.hjs.42.120502


Physical study on target area of simplified experimental muon source at CSNS

Qili MU1,2,3,Luping ZHOU2,3,Hantao JING2,3(),Yukai CHEN2,3,Qingbiao WU2,3,Gang ZHANG2,3,Donghui ZHU2,3,Jingyu TANG2,3,Ye YUAN3,Yugang MA1()   

  1. 1. Jilin University, Changchun 130012, China
    2. Spallation Neutron Source Science Center, Dongguan 523803, China
    3. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
  • Received:2019-03-27 Revised:2019-09-08 Online:2019-12-10 Published:2019-12-18
  • Contact: Hantao JING,Yugang MA;
  • About author:MU Qili, female, born in 1993, graduated from Jilin University with a master's degree in 2019, focusing on nuclear technique application
  • Supported by:
    National Natural Science Foundation of China(11575217);National Major Scientific Research Instrument Development Project(11527811);National Key Research Program on Scientific Instrument Developments(2017YFE0106100)

Abstract: Background

China Spallation Neutron Source (CSNS) based on the spallation reaction is a large multi-principle research platform, which has been completed and began commissioning since August 2018. Experimental muon source (EMuS) is one of important research platforms constructed at CSNS in the future.


This study aims to design a simplified EMuS according to the multiple-stage construction plan.


First of all, the processes of a high energy proton beam bombarding on a carbon target were simulated by employing FLUKA code based on Monte Carlo method. Then, the disposition of abandoned proton beam, energy deposition in target, muon production were analysed in details, background and whole target radiation and shielding scheme were investigated by simulation. [Result&


The aluminum alloy is determined to be target chamber material according to the simulation. The residual radiation dose can be controlled to below 2.5 μSv·h-1 with optimal geometry structure, providing a low-radiation environment for the maintenance.

Key words: High-energy proton beam, Surface muon source, Energy deposition, Inducing radiation, Radiation shielding

CLC Number: 

  • TL57