Nuclear Techniques ›› 2019, Vol. 42 ›› Issue (10): 100204-100204.doi: 10.11889/j.0253-3219.2019.hjs.42.100204

• ACCELERATOR, RAY TECHNOLOGY AND APPLICATIONS • Previous Articles     Next Articles

Preliminary design of beam dump for CEPC-linac

Haoyu SHI1,2,Qingbin WANG1(),Zhongjian MA1,Yadong DING1   

  1. 1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2018-01-06 Revised:2018-06-15 Online:2019-10-13 Published:2019-10-16
  • Contact: Qingbin WANG E-mail:qbwang@ihep.ac.cn
  • About author:SHI Haoyu, male, born in 1990, graduated from University of Chinese Academy of Sciences in 2018 with a doctoral degree, focusing on radiation protection

Abstract: Background

Circular electron positron collider (CEPC) is a high-energy accelerator, some beam produced by CEPC but not injected to energy intensifier need to be absorbed properly to keep the safety of the machine and the environment.

Purpose

This study aims to design the beam dump, and give a process of design for the beam dumps used in high-energy accelerators.

Methods

The Monte-Carlo program FLUKA was employed for the preliminary design scheme of CEPC linac beam dump. As the basis of absorber design, different calculating methods of beam range was proposed and checked with Empirical formula.

Results

The relationship between material selection of shield and overall shielding thickness is revealed. The introduction of variance reduction technique improves the accuracy of calculation results.

Conclusions

The empirical formula to estimate the stop range of electron is basically correct and same with the Monte-Carlo simulation. And the design itself is helpful to CEPC Project.

Key words: Radiation protection, Beam dump, Monte-Carlo method, CEPC

CLC Number: 

  • TL99