Radiation detector and method for producing photoconductive layer for recording thereof
    2.
    发明授权
    Radiation detector and method for producing photoconductive layer for recording thereof 有权
    辐射检测器及其制造光电导层的方法

    公开(公告)号:US07488966B2

    公开(公告)日:2009-02-10

    申请号:US12054021

    申请日:2008-03-24

    IPC分类号: G01N23/04

    摘要: In a radiation detector, electrodes are provided on both sides of a photoconductive layer for recording. When the photoconductive layer for recording is irradiated with radiation during application of a predetermined bias voltage between the electrodes, electric charges are generated within the photoconductive layer for recording. Then, the generated electric charges are detected as an electric signal by the radiation detector. As the material for the photoconductive layer for recording, amorphous selenium having a coordination number of 1.95±0.02 is used.

    摘要翻译: 在放射线检测器中,在用于记录的光电导层的两侧设置电极。 当在施加电极之间的预定偏置电压时用辐射照射用于记录的光电导层时,在用于记录的光电导层内产生电荷。 然后,通过放射线检测器检测所产生的电荷作为电信号。 作为用于记录的光电导层的材料,使用配位数为1.95±0.02的非晶硒。

    Constant voltage generating circuit for selectively generating a
constant voltage at a high-speed
    3.
    发明授权
    Constant voltage generating circuit for selectively generating a constant voltage at a high-speed 失效
    用于以高速有选择地产生恒定电压的恒压发生电路

    公开(公告)号:US4933627A

    公开(公告)日:1990-06-12

    申请号:US390002

    申请日:1989-08-07

    申请人: Yoshiko Hara

    发明人: Yoshiko Hara

    摘要: A constant voltage generating circuit for controllably generating a constant voltage at a high speed in response to a control signal and operable with a small power consumption is disclosed. The constant voltage generating circuit comprises first and second output field effect transistors connected in series between first and second voltage terminals, a bias circuit having a series circuit of impedance elements and at least one switch element connected in series between the first and second voltage terminals, first and second intermediate nodes of the series circuit being connected to the gates of the first and second transistors respectively, the switch element taking a conductive state in response to a first level of the control signal a non-conductive state in response to a second level of the control signal, first and second capacitors, a first control circuit for charging the first and second capaitors in response to the second level of the control signal, and a second control circuit for applying electric charges stored in the first and second capacitors to the first and second intermediate nodes in response to the first level of the control signal.