RESEARCH ON DOSE MONITORING IN BACKSCATTERING NEUTRON HALL IN CHINA SPALLATION NEUTRON SOURCE

被引：0

作者：

Wu, Qingbiao ^{[1
,2
]}

Zhuang, Sixuan ^{[1
,2
]}

Liu, Qiongyao ^{[1
,2
]}

Jing, Hantao ^{[1
,2
]}

Ye, Rong ^{[1
,2
]}

Li, Lun ^{[1
,2
]}

Wang, Yufei ^{[1
,2
]}

Wang, Qingbin ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys IHEP, Beijing 100049, Peoples R China

[2] Spallat Neutron Source Sci Ctr, Dongguan 523808, Peoples R China

来源：

RADIATION PROTECTION DOSIMETRY | 2020年 / 189卷 / 02期

关键词：

HIGH-ENERGY; DESIGN; BEAM;

D O I：

10.1093/rpd/ncaa038

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The back-n project in China Spallation Neutron Source (CSNS) was launched primarily for nuclear data measurements. In the backscattering neutron hall, the neutron and gamma monitors were used for dose monitoring. Because of the dead time problem of monitors, performance of the monitors in such pulsed radiation field needs to be analyzed. In this research, experiments with dose monitors and personal dosemeters were conducted, and simulation by Monte Carlo code FLUKA was performed. Results showed that the values by monitors are smaller, and the larger the dose, the larger the difference. The reasons in term of energy response and dead time have been analyzed, and corrections were discussed. After corrections, the measured value can agree with the simulation results in the range of about a factor 3. Totally speaking, the values recorded by neutron and gamma monitors can be a reference for radiation safety management in CSNS.

引用

页码：253 / 269

页数：17

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