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

来源：

JOURNAL OF INSTRUMENTATION | 2019年 / 14卷 / 10期

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

页数：11

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