Study on the Availability of 4T-APS as a Video Monitor and Radiation Detector in Nuclear Accidents
Study on the Availability of 4T-APS as a Video Monitor and Radiation Detector in Nuclear Accidents
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DOI：
10.3390/su10072172
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发表时间：
2018-07-01
期刊：
影响因子：
3.9
通讯作者：
Qu, Yantao
中科院分区：
文献类型：
--
作者：
Xu, Shoulong;Zou, Shuliang;Qu, Yantao
在本文中，我们提出了一种具有四个晶体管(4T)的有源像素传感器(APS)作为视频监控和辐射探测器的可行性。分析辐射损伤是核事故恢复的首要步骤之一，而辐射响应特性是使用4T-APS进行辐射检测的基础。这项工作的目的是建议在广泛分布的辐射探测器中使用带有4T-APS的相机。4T-APS辐射损伤的总电离剂量(TID)是一个阈值。在辐射屏蔽结构的帮助下，提高了抗辐射能力。辐射响应表现出积分时间依赖关系和像素信息依赖关系，灰度值越低的像素辐射响应越强。针对不同的监控场景，提出了两种方法。该研究有助于极大地提高核事故应急响应水平和核设施的安全性。
In this paper, we present the availability of an active pixel sensor (APS) with four transistors (4T) as a video monitor and radiation detector. Analyzing radiation damage must be one of the first steps in recovering from nuclear accidents, and the radiation response characteristic is the basis for the use of 4T-APS to detect radiation. The goal of this work is to suggest the use of cameras with 4T-APS in widely distributed irradiation detectors. The total ionizing dose (TID) of radiation damage on 4T-APS provided a threshold. Radiation tolerance was improved with the help of a radiation shielding structure. The radiation response showed integration time dependence and pixel information dependence, and greater radiation response was observed from the pixels with lower grayscale values. Two methods are suggested based on different monitoring scenes. This study can help to greatly improve nuclear accident emergency response and the safety of nuclear facilities.