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    • 10. 发明公开
    • X-RAY GENERATOR
    • RÖNTGENGENERATOR
    • EP1381256A4
    • 2009-05-13
    • EP02708708
    • 2002-03-28
    • HAMAMATSU PHOTONICS KK
    • NAKAMURA TSUTOMUISHIKAWA MASAYOSHI
    • G21K5/02H05G1/34H01J35/04H01J35/14H05G1/10H05G1/26H05G1/56
    • H05G1/56H05G1/10H05G1/26
    • An X-ray generator (1) comprising an X-ray tube (11) having a cathode part (16), a grid electrode (15) and a target (22), voltage control devices (27 and 32) for controlling the voltages applied to the cathode part (16) and the grid electrode (15), and switches (33 and 34) for turning on/off the X-ray generator (1) and X-ray emission. The voltage control devices (27 and 32) apply a positive standby voltage (Vf1) to the cathode part (16) according to an on-signal of the X-ray generator (1) and an off-signal of X-ray emission, and apply a negative cut-off voltage (Vc1) to the grid electrode (15). In addition, the voltage control devices apply a cathode operating voltage (Vf2) higher than the standby voltage (Vf1) to the cathode part (16) and apply a grid operating voltage (Vc2) higher than the cut-off voltage (Vc1) to the grid electrode (15) according to an on-signal of the X-ray generator (1) and an on-signal of X-ray emission.
    • 一种包括具有阴极部分(16),栅极(15)和靶(22)的X射线管(11)的X射线发生器(1),用于控制电压 施加到阴极部分16和栅极15以及用于打开/关闭X射线发生器1和X射线发射的开关33和34。 根据X射线发生器(1)的接通信号和X射线发射的关闭信号,电压控制装置(27和32)向阴极部分(16)施加正的备用电压(Vf1) 并向栅极(15)施加负截止电压(Vc1)。 另外,电压控制装置向阴极部分(16)施加高于待机电压(Vf1)的阴极工作电压(Vf2),并将高于截止电压(Vc1)的电网工作电压(Vc2)施加到阴极部分 根据X射线发生器(1)的接通信号以及X射线发射的接通信号确定栅极(15)。