Preliminary design of beam dump for CEPC-linac

SHI Haoyu; WANG Qingbin; MA Zhongjian; DING Yadong

doi:10.11889/j.0253-3219.2019.hjs.42.100204

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Preliminary design of beam dump for CEPC-linac

ACCELERATOR, RAY TECHNOLOGY AND APPLICATIONS | 更新时间：2024-10-25

- Preliminary design of beam dump for CEPC-linac
- NUCLEAR TECHNIQUES Vol. 42, Issue 10, (2019)
- 作者机构：
  
  1.中国科学院高能物理研究所北京 100049
  2.中国科学院大学北京 100049
- 作者简介：
  
  SHI Haoyu, male, born in 1990, graduated from University of Chinese Academy of Sciences in 2018 with a doctoral degree, focusing on radiation protection
  WANG Qingbin, E-mail: qbwang@ihep.ac.cn
- 基金信息：
- DOI：10.11889/j.0253-3219.2019.hjs.42.100204
  CLC： TL99
- Received：06 January 2018，
  
  Revised：15 June 2018，
  
  Published：13 October 2019
- 稿件说明：
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石澔玙,王庆斌,马忠剑等.CEPC 直线加速器束流垃圾桶初步设计[J].核技术,2019,42(10):19-24.

SHI Haoyu,WANG Qingbin,MA Zhongjian,et al.Preliminary design of beam dump for CEPC-linac[J].NUCLEAR TECHNIQUES,2019,42(10):19-24.
石澔玙,王庆斌,马忠剑等.CEPC 直线加速器束流垃圾桶初步设计[J].核技术,2019,42(10):19-24. DOI： 10.11889/j.0253-3219.2019.hjs.42.100204.

SHI Haoyu,WANG Qingbin,MA Zhongjian,et al.Preliminary design of beam dump for CEPC-linac[J].NUCLEAR TECHNIQUES,2019,42(10):19-24. DOI： 10.11889/j.0253-3219.2019.hjs.42.100204.

摘要

束流垃圾桶的材料、结构、尺寸的正确设计对于确保高能环形对撞机（Circular Electron Positron Collider

CEPC）直线加速器的安全运行有重要意义。采用蒙特卡罗程序FLUKA，研究了概念设计阶段的CEPC直线加速器束流垃圾桶的初步设计方案，给出了作为吸收体设计依据的射程的不同计算方法及验证过程，以及屏蔽体部分的材料选择与总体屏蔽厚度的关系；计算过程中引入减方差技巧提高了计算结果的精确程度。

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.

关键词

Keywords

references

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