公开(公告)号：US07888648B2

公开(公告)日：2011-02-15

申请号：US12388263

申请日：2009-02-18

申请人： Tomoyuki Seino ,  Takafumi Ishitsu ,  Yuichiro Ueno

发明人： Tomoyuki Seino ,  Takafumi Ishitsu ,  Yuichiro Ueno

IPC分类号： G01T1/24

CPC分类号： G01T1/24

摘要： A radiological measurement system protecting an amplifier from damage caused by a surge current, ensuring temporal continuity of measurement with a minimum dead time, and including a high voltage DC supply for applying a bias voltage to a radiation detector formed of semiconductor crystal, a controller for exercising on-off control on the bias voltage supplied from the high voltage DC supply, an amplifier, a protection circuit for protecting the amplifier from a surge current generated when the bias voltage is subjected to the on-off control, a control unit for preventing the surge current from flowing to the amplifier, and a switch provided in parallel with the protection circuit and controlled in operation state by the control unit, wherein the control unit controls the operation state of the switch in synchronism with the on-off control exercised by the control unit to prevent the surge current from flowing to the amplifier.

摘要翻译： 一种放射学测量系统，其保护放大器不受浪涌电流造成的损害，确保具有最小死区时间的测量的时间连续性，并且包括用于向由半导体晶体形成的辐射检测器施加偏置电压的高压DC电源，控制器 对从高压DC电源提供的偏置电压进行开关控制，放大器，用于保护放大器免受当偏置电压进行开关控制时产生的浪涌电流的保护电路，用于防止 流入放大器的浪涌电流以及与保护电路并联设置并由控制单元控制在操作状态的开关，其中控制单元与开关控制单元的开 - 关控制同步地控制开关的运行状态 该控制单元防止浪涌电流流向放大器。

公开(公告)号：US20090242780A1

公开(公告)日：2009-10-01

申请号：US12388263

申请日：2009-02-18

申请人： Tomoyuki SEINO ,  Takafumi Ishitsu ,  Yuichiro Ueno

发明人： Tomoyuki SEINO ,  Takafumi Ishitsu ,  Yuichiro Ueno

IPC分类号： G01T1/24

CPC分类号： G01T1/24

摘要： A radiological measurement system protecting an amplifier from damage caused by a surge current, ensuring temporal continuity of measurement with a minimum dead time, and including a high voltage DC supply for applying a bias voltage to a radiation detector formed of semiconductor crystal, a controller for exercising on-off control on the bias voltage supplied from the high voltage DC supply, an amplifier, a protection circuit for protecting the amplifier from a surge current generated when the bias voltage is subjected to the on-off control, a control unit for preventing the surge current from flowing to the amplifier, and a switch provided in parallel with the protection circuit and controlled in operation state by the control unit, wherein the control unit controls the operation state of the switch in synchronism with the on-off control exercised by the control unit to prevent the surge current from flowing to the amplifier.

摘要翻译： 一种放射学测量系统，其保护放大器不受浪涌电流造成的损害，确保具有最小死区时间的测量的时间连续性，并且包括用于向由半导体晶体形成的辐射检测器施加偏置电压的高压DC电源，控制器 对从高压DC电源提供的偏置电压进行开关控制，放大器，用于保护放大器免受当偏置电压进行开关控制时产生的浪涌电流的保护电路，用于防止 流入放大器的浪涌电流以及与保护电路并联设置并由控制单元控制在操作状态的开关，其中控制单元与开关控制单元的开 - 关控制同步地控制开关的运行状态 该控制单元防止浪涌电流流向放大器。