An in-situ calibration device for portable gamma dosimeters based on minitype reference radiation

被引:0
|
作者
Liu, Y. [1 ,2 ]
Chen, Z. [1 ]
Qian, Y. [2 ,3 ]
Zhang, S. [2 ,3 ]
Feng, P. [3 ]
Mao, B. [2 ]
机构
[1] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China
[2] China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621999, Sichuan, Peoples R China
[3] Chongqing Univ, Minist Educ, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China
基金
中国国家自然科学基金;
关键词
Dosimetry concepts and apparatus; Radiation damage monitoring systems;
D O I
10.1088/1748-0221/14/10/P10012
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
This paper reports an in-situ calibration device for portable gamma dosimeters based on the minitype reference radiation (MRR). Compared to the standard reference radiation (SRR) regulated by the ISO-4037 series standards for gamma dosimeter calibration purposes, the dimensions of the MRR of the device were drastically reduced to 0.6 m x 0.6 m x 0.6 m, and the total weight of the device was approximately 800 kg. According to the test experiments, the device met the radiation protection requirements, and the air kerma rate range covered 1 mu Gy/h-10 mGy/h, which is appropriate for calibrating protection level gamma dosimeters. A series of dosimeters were calibrated in the SRR and the device, and the mean deviation of the calibration factors was approximately 5.66%.
引用
收藏
页数:11
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