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北京正负电子对撞机(BEPCⅡ)束流注入区辐射场研究
Alternative TitleStudy of radiation field in beam injection region of BEPCⅡ
阎明洋; 吴青彪; 丁亚东; 赵晓岩; 张清江; 李楠; 马忠剑
2017
Source PublicationRadiation Protection辐射防护
ISSN1000-8187
Volume37Issue:1Pages:12-17
SubtypeArticle
Abstract北京正负电子对撞机(BEPCⅡ)正负电子束流注入阶段的束流损失,影响储存环束流注入区及防护区辐射场。本文利用束流损失监测系统(BLM系统)分析了束流注入阶段注入区束流损失的位置和束流损失率,并结合FLUKA软件模拟计算对撞实验模式下束流注入阶段注入区的辐射场。结果表明:注入阶段注入区及其下游束流损失明显;辐射场内粒子能谱情况是中子为宽能谱且各向同性,切割磁铁(铁靶)出射蒸发谱峰窄,峰值约为0.9 MeV,直接发射谱不显著;真空管(铝靶)出射蒸发谱峰宽且直接发射谱显著,峰值分别为4 MeV和20 MeV;光子能谱峰窄且前向性明显,能量在5 MeV以下分布集中;中子与光子剂量率水平相当;注入阶段比非注入阶段剂量率高约2个数量级;对撞实验模式下,实验测量整个运行阶段储存环光子剂量率平均水平约为1 000 muSv /h,中子剂量率比光子剂量率低1个数量级。
Keyword注入区 束流损失 中子 光子
Indexed ByCSCD
Language中文
WOS Research AreaNuclear Science & Technology (provided by Clarivate Analytics)
CSCD IDCSCD:5959698
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285036
Collection实验物理中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
阎明洋,吴青彪,丁亚东,等. 北京正负电子对撞机(BEPCⅡ)束流注入区辐射场研究[J]. Radiation Protection辐射防护,2017,37(1):12-17.
APA 阎明洋.,吴青彪.,丁亚东.,赵晓岩.,张清江.,...&马忠剑.(2017).北京正负电子对撞机(BEPCⅡ)束流注入区辐射场研究.Radiation Protection辐射防护,37(1),12-17.
MLA 阎明洋,et al."北京正负电子对撞机(BEPCⅡ)束流注入区辐射场研究".Radiation Protection辐射防护 37.1(2017):12-17.
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