Low dose rate γ-ray detection using a MAPS camera under a neutron radiation environment
Low dose rate γ-ray detection using a MAPS camera under a neutron radiation environment
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中子辐射环境下使用 MAPS 相机进行低剂量率γ射线检测
DOI：
10.1364/oe.437580
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发表时间：
2021-10-25
期刊：
影响因子：
3.8
通讯作者：
Yang, Huaiqing
中科院分区：
文献类型：
--
作者：
Xu, Shoulong;Zhao, Fang;Yang, Huaiqing
我们提出了在中子辐射环境中使用没有转换或屏蔽层的单片有源像素传感器(MAP)相机来探测伽马射线辐射。测量的输出信号是基座值、噪声和实际辐射响应信号的和。传感器的响应表明，MAPS相机对中子很敏感，可以捕捉到单个光子。信号超过100的像素数与剂量率有很强的相关性，是该值的最佳指标。因此，MAPS相机可以有效地用作机器人系统中的辐射检测传感器，进一步限制在复杂的核辐射环境中执行辐射检测时的人为错误。(C)OSA开放获取出版协议条款下的2021年美国光学学会
We present gamma-ray radiation detection in a neutron radiation environment using a monolithic active pixel sensor (MAPS) camera without conversion or shielding layers. The measured output signal is the sum of the pedestal value, noise, and real radiation response signal. The sensor response shows that the MAPS camera is sensitive to neutrons and can capture a single photon. The number of pixels with a signal exceeding 100 exhibits a strong dependence on the dose rate and is the best indicator of this value. Therefore, a MAPS camera can be efficiently used as a radiation detection sensor in a robotic system, further limiting human errors in performing radiation detection in complex nuclear radiation environments. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement