CSNS简化实验缪子源的靶区物理研究

TL57; 中国散裂中子源(China Spallation Neutron Source,CSNS)是一台基于散裂反应的大型的多学科研究平台.2018年8月竣工并正式运行.实验缪子源(Experimental Muon Source,EMuS)是CSNS未来规划建设的重要研究平台之一.根据多步发展的规划,简化方案(Baby Scheme)的实验缪子源将优先考虑建设,设计运行功率5 kW.利用蒙特卡罗粒子输运程序FLUKA模拟1.6 GeV高能质子束轰击碳靶过程,研究了废质子束流处理、靶上能量沉积、缪子束的产生和本底及整个靶区的辐射情况和屏蔽方案等.确定了靶室材料为铝合金材料,优化的屏蔽体结构...

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Published in核技术 Vol. 42; no. 12; pp. 49 - 57
Main Authors 穆奇丽, 周路平, 敬罕涛, 陈裕凯, 吴青彪, 张刚, 朱东辉, 唐靖宇, 袁野, 马玉刚
Format Journal Article
LanguageChinese
Published 中国科学院高能物理研究所 北京 100049%散裂中子源科学中心 东莞 523803 10.12.2019
散裂中子源科学中心 东莞 523803
吉林大学 长春 13001
中国科学院高能物理研究所 北京 100049%中国科学院高能物理研究所 北京 100049%吉林大学 长春 130012
Subjects
感生放射性
Surface muon source
Energy deposition
Inducing radiation
高能质子束
辐射屏蔽
Radiation shielding
High-energy proton beam
能量沉积
表面缪子源
Online AccessGet full text
ISSN0253-3219
DOI10.11889/j.0253-3219.2019.hjs.42.120502

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Abstract TL57; 中国散裂中子源(China Spallation Neutron Source,CSNS)是一台基于散裂反应的大型的多学科研究平台.2018年8月竣工并正式运行.实验缪子源(Experimental Muon Source,EMuS)是CSNS未来规划建设的重要研究平台之一.根据多步发展的规划,简化方案(Baby Scheme)的实验缪子源将优先考虑建设,设计运行功率5 kW.利用蒙特卡罗粒子输运程序FLUKA模拟1.6 GeV高能质子束轰击碳靶过程,研究了废质子束流处理、靶上能量沉积、缪子束的产生和本底及整个靶区的辐射情况和屏蔽方案等.确定了靶室材料为铝合金材料,优化的屏蔽体结构成功将剩余剂量控制在2.5 μSv·h?1以下,为周边维护人员提供低放射环境.
AbstractList TL57; 中国散裂中子源(China Spallation Neutron Source,CSNS)是一台基于散裂反应的大型的多学科研究平台.2018年8月竣工并正式运行.实验缪子源(Experimental Muon Source,EMuS)是CSNS未来规划建设的重要研究平台之一.根据多步发展的规划,简化方案(Baby Scheme)的实验缪子源将优先考虑建设,设计运行功率5 kW.利用蒙特卡罗粒子输运程序FLUKA模拟1.6 GeV高能质子束轰击碳靶过程,研究了废质子束流处理、靶上能量沉积、缪子束的产生和本底及整个靶区的辐射情况和屏蔽方案等.确定了靶室材料为铝合金材料,优化的屏蔽体结构成功将剩余剂量控制在2.5 μSv·h?1以下,为周边维护人员提供低放射环境.
Abstract_FL [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. [Purpose] This study aims to design a simplified EMuS according to the multiple-stage construction plan. [Methods] 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&Conclusion] 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.
Author 张刚
周路平
吴青彪
朱东辉
唐靖宇
陈裕凯
穆奇丽
袁野
马玉刚
敬罕涛
AuthorAffiliation 吉林大学 长春 13001;散裂中子源科学中心 东莞 523803;中国科学院高能物理研究所 北京 100049%散裂中子源科学中心 东莞 523803;中国科学院高能物理研究所 北京 100049%中国科学院高能物理研究所 北京 100049%吉林大学 长春 130012
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Author_FL CHEN Yukai
ZHU Donghui
MA Yugang
ZHANG Gang
MU Qili
TANG Jingyu
ZHOU Luping
JING Hantao
WU Qingbiao
YUAN Ye
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  fullname: ZHANG Gang
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  fullname: ZHU Donghui
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  fullname: TANG Jingyu
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  fullname: YUAN Ye
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DocumentTitle_FL Physical study on target area of simplified experimental muon source at CSNS
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Issue 12
Keywords 感生放射性
Surface muon source
Energy deposition
Inducing radiation
高能质子束
辐射屏蔽
Radiation shielding
High-energy proton beam
能量沉积
表面缪子源
Language Chinese
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PublicationTitle_FL Nuclear Techniques
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Publisher 中国科学院高能物理研究所 北京 100049%散裂中子源科学中心 东莞 523803
散裂中子源科学中心 东莞 523803
吉林大学 长春 13001
中国科学院高能物理研究所 北京 100049%中国科学院高能物理研究所 北京 100049%吉林大学 长春 130012
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Snippet TL57; 中国散裂中子源(China Spallation Neutron Source,CSNS)是一台基于散裂反应的大型的多学科研究平台.2018年8月竣工并正式运行.实验缪子源(Experimental Muon...
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Title CSNS简化实验缪子源的靶区物理研究
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