HIAF高能辐照终端感生放射性

徐翀; 李武元; 徐俊奎; 杨尧; 毛旺; 严维伟; 苏有武; 杨雅清

doi:10.11804/NuclPhysRev.35.02.165

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HIAF高能辐照终端感生放射性

徐翀, 李武元, 徐俊奎, 杨尧, 毛旺, 严维伟, 苏有武, 杨雅清

文章导航 > 原子核物理评论 > 2018 > 35(2): 165-171

徐翀, 李武元, 徐俊奎, 杨尧, 毛旺, 严维伟, 苏有武, 杨雅清. HIAF高能辐照终端感生放射性[J]. 原子核物理评论, 2018, 35(2): 165-171. doi: 10.11804/NuclPhysRev.35.02.165

引用本文:

XU Chong, LI Wuyuan, XU Junkui, YANG Yao, MAO Wang, YAN Weiwei, SU Youwu, YANG Yaqing. Induced Radioactivity at High-energy Irradiation Terminal of HIAF[J]. Nuclear Physics Review, 2018, 35(2): 165-171. doi: 10.11804/NuclPhysRev.35.02.165

Citation:

XU Chong, LI Wuyuan, XU Junkui, YANG Yao, MAO Wang, YAN Weiwei, SU Youwu, YANG Yaqing. Induced Radioactivity at High-energy Irradiation Terminal of HIAF[J]. Nuclear Physics Review, 2018, 35(2): 165-171. doi: 10.11804/NuclPhysRev.35.02.165

HIAF高能辐照终端感生放射性

doi: 10.11804/NuclPhysRev.35.02.165

1.
中国科学院近代物理研究所, 兰州 730000;
2.
中国科学院大学, 北京 100049

基金项目: 国家重点研发计划项目（2017YFC0107700）

详细信息

作者简介:
徐翀(1989-),女,浙江衢州人,博士研究生,从事辐射防护技术;E-mail:xuchong@impcas.ac.cn.

中图分类号: TL77

Induced Radioactivity at High-energy Irradiation Terminal of HIAF

1.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Funds: National key Research and Development Program of China (2017YFC0107700)

摘要: 本工作是基于蒙特卡罗模拟软件FLUKA对高能强流重离子加速器（HIAF）高能辐照终端感生放射性进行初步研究。该终端可运行质子最高能量为9.3 GeV，最大流强是1.45×10¹² pps（particle per second）。研究内容包括：（1）预测高能辐照终端内活化物质的放射性活度特性；（2）预测不同冷却时间高能辐照终端内残余剂量率分布。研究结果表明，HIAF正常运行时高能辐照终端内的感生放射性主要受束流垃圾桶活化产生的放射性核素影响。当加速器连续运行100天冷却4小时，垃圾桶表面残余剂量率为2.375 mSv·h^-1。终端内空气中¹³N和¹⁵O动态饱和比浓度大于其对应的导出空气浓度。冷却水中¹³N和¹⁵O的活度大于对应的ALI_min。该研究是HIAF辐射防护基础研究以及加速器环境影响评价的一项重要内容。

The Monte Carlo code FLUKA was used to predict the induced radioactivity of high-energy irradiation terminal of HIAF. The maximum energy of proton is 9.3 GeV, and the maximum current is 1.45×10¹² pps (particle per second). In this study we were to predict:(1) the activity properties of activated substances in the experimental terminal; (2) the residual dose rate distribution in the experimental terminal at different cooling time. The results indicate that the induced radioactivity in the high energy irradiation terminal of the HIAF is mainly affected by the radionuclide induced in the beam dump. The residual dose rate on the surface of the beam dump is 2.375 mSv·h^-1, after 100 d irradiation and 4 h cooling. The dynamic saturation ratio of ¹³N and ¹⁵O induced in the air inside the terminal is higher than its corresponding derived air concentration. The activity of 13 N and¹⁵O induced in cooling water is higher than its ALI_min. This study is a part of radiation protection basic research and environmental impact assessment for HIAF.
- 感生放射性 /
- 放射性活度 /
- 束流垃圾桶 /
- 加速器
Abstract: The Monte Carlo code FLUKA was used to predict the induced radioactivity of high-energy irradiation terminal of HIAF. The maximum energy of proton is 9.3 GeV, and the maximum current is 1.45×10¹² pps (particle per second). In this study we were to predict:(1) the activity properties of activated substances in the experimental terminal; (2) the residual dose rate distribution in the experimental terminal at different cooling time. The results indicate that the induced radioactivity in the high energy irradiation terminal of the HIAF is mainly affected by the radionuclide induced in the beam dump. The residual dose rate on the surface of the beam dump is 2.375 mSv·h^-1, after 100 d irradiation and 4 h cooling. The dynamic saturation ratio of ¹³N and ¹⁵O induced in the air inside the terminal is higher than its corresponding derived air concentration. The activity of 13 N and¹⁵O induced in cooling water is higher than its ALI_min. This study is a part of radiation protection basic research and environmental impact assessment for HIAF.
- radioactivity /
- activity /
- beam dump /
- accelerator

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HIAF高能辐照终端感生放射性

doi: 10.11804/NuclPhysRev.35.02.165

1. 中国科学院近代物理研究所, 兰州 730000;

2. 中国科学院大学, 北京 100049

基金项目: 国家重点研发计划项目（2017YFC0107700）

作者简介:
徐翀(1989-),女,浙江衢州人,博士研究生,从事辐射防护技术;E-mail:xuchong@impcas.ac.cn.

收稿日期: 2017-12-19
修回日期: 2018-03-08
刊出日期: 2018-06-20

中图分类号: TL77

关键词:

摘要: 本工作是基于蒙特卡罗模拟软件FLUKA对高能强流重离子加速器（HIAF）高能辐照终端感生放射性进行初步研究。该终端可运行质子最高能量为9.3 GeV，最大流强是1.45×10¹² pps（particle per second）。研究内容包括：（1）预测高能辐照终端内活化物质的放射性活度特性；（2）预测不同冷却时间高能辐照终端内残余剂量率分布。研究结果表明，HIAF正常运行时高能辐照终端内的感生放射性主要受束流垃圾桶活化产生的放射性核素影响。当加速器连续运行100天冷却4小时，垃圾桶表面残余剂量率为2.375 mSv·h^-1。终端内空气中¹³N和¹⁵O动态饱和比浓度大于其对应的导出空气浓度。冷却水中¹³N和¹⁵O的活度大于对应的ALI_min。该研究是HIAF辐射防护基础研究以及加速器环境影响评价的一项重要内容。

The Monte Carlo code FLUKA was used to predict the induced radioactivity of high-energy irradiation terminal of HIAF. The maximum energy of proton is 9.3 GeV, and the maximum current is 1.45×10¹² pps (particle per second). In this study we were to predict:(1) the activity properties of activated substances in the experimental terminal; (2) the residual dose rate distribution in the experimental terminal at different cooling time. The results indicate that the induced radioactivity in the high energy irradiation terminal of the HIAF is mainly affected by the radionuclide induced in the beam dump. The residual dose rate on the surface of the beam dump is 2.375 mSv·h^-1, after 100 d irradiation and 4 h cooling. The dynamic saturation ratio of ¹³N and ¹⁵O induced in the air inside the terminal is higher than its corresponding derived air concentration. The activity of 13 N and¹⁵O induced in cooling water is higher than its ALI_min. This study is a part of radiation protection basic research and environmental impact assessment for HIAF.

English Abstract

Induced Radioactivity at High-energy Irradiation Terminal of HIAF

1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;

2. University of Chinese Academy of Sciences, Beijing 100049, China

Funds: National key Research and Development Program of China (2017YFC0107700)

Received Date: 2017-12-19
Rev Recd Date: 2018-03-08
Publish Date: 2018-06-20

Keywords:

Abstract: The Monte Carlo code FLUKA was used to predict the induced radioactivity of high-energy irradiation terminal of HIAF. The maximum energy of proton is 9.3 GeV, and the maximum current is 1.45×10¹² pps (particle per second). In this study we were to predict:(1) the activity properties of activated substances in the experimental terminal; (2) the residual dose rate distribution in the experimental terminal at different cooling time. The results indicate that the induced radioactivity in the high energy irradiation terminal of the HIAF is mainly affected by the radionuclide induced in the beam dump. The residual dose rate on the surface of the beam dump is 2.375 mSv·h^-1, after 100 d irradiation and 4 h cooling. The dynamic saturation ratio of ¹³N and ¹⁵O induced in the air inside the terminal is higher than its corresponding derived air concentration. The activity of 13 N and¹⁵O induced in cooling water is higher than its ALI_min. This study is a part of radiation protection basic research and environmental impact assessment for HIAF.