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1. 发明公开

EP2703846A2 Method and apparatus for supplying bias drive voltage to radiation detector 审中-公开
标题翻译： Verfahren und Vorrichtung zur Spannungsversorgung eines Strahlungsdetektors。
公开(公告)号：EP2703846A2
公开(公告)日：2014-03-05
申请号：EP13004262.5
申请日：2013-08-29
申请人： Telesystems Co., Ltd.
发明人： Yamakawa, Tsutomu , Hashimoto, Daisuke , Nagano, Tatsuya , Tsujita, Masahiro
IPC分类号： G01T1/24
CPC分类号： G01T1/24
摘要： A radiation detecting apparatus includes a radiation detector (11), a power source (31), a current detector (32), and a bias voltage adjuster (34). The radiation detector includes a semiconductor layer (21) consisting of a compound semiconductor directly converting an incoming radiation photon to an electric charge and a pair of electrode layers (22, 23) stacked individually on both surfaces of the semiconductor layer. One layer of the paired electrode layers has plural collecting electrodes which enable the semiconductor layer to have one-dimensionally or two-dimensionally arrayed pixels. The power source applies a direct-current bias voltage between the paired electrodes such that the electric charge is collected to one electrode of the pair electrodes. The current detector detects current supplied from the power source when the power source applies the bias voltage between the pair of electrodes. The bias voltage adjuster changes a value of the bias voltage applied by the power source depending on a value of the current detected by the current detector.
摘要翻译：辐射检测装置包括辐射检测器（11），电源（31），电流检测器（32）和偏置电压调节器（34）。辐射检测器包括由直接将入射的辐射光子转换成电荷的化合物半导体组成的半导体层（21）和分别层叠在半导体层的两个表面上的一对电极层（22,23）。成对电极层的一层具有能够使半导体层具有一维或二维排列的像素的多个收集电极。电源在成对电极之间施加直流偏置电压，使得电荷被收集到对电极的一个电极。当电源在一对电极之间施加偏置电压时，电流检测器检测从电源提供的电流。偏置电压调节器根据由电流检测器检测的电流的值改变由电源施加的偏置电压的值。

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