公开(公告)号：EP2800273A4

公开(公告)日：2015-10-28

申请号：EP12862173

申请日：2012-12-28

申请人： NUCTECH CO LTD ,  UNIV TSINGHUA

发明人： LIU YAOHONG ,  TANG CHUANXIANG ,  YAN XINSHUI ,  JIA WEI ,  GAO JIANJUN ,  LIU JINSHENG ,  YIN WEI ,  LIU XIYING ,  SHI HAO

IPC分类号： H03K3/57 ,  H03K7/08

CPC分类号： H02M1/08 ,  H03K3/57 ,  H03K7/08

摘要： The present invention provides a pulse modulating power source, which comprises: a plurality of discharging modules connected in series during discharging; a plurality of triggers corresponding to said plurality of discharging modules, wherein each trigger provides a trigger signal to the corresponding discharging module to turn it on; a control logic module for controlling the trigger signals so as to turn on said plurality of discharging modules successively with a time delay; an output terminal for outputting a voltage.

公开(公告)号：EP2983012A4

公开(公告)日：2016-12-14

申请号：EP14746344

申请日：2014-01-17

申请人： UNIV TSINGHUA ,  NUCTECH CO LTD

发明人： KANG KEJUN ,  LI JIANMIN ,  LI YING ,  LI YUANJING ,  YIN WEI ,  ZHENG JUAN ,  ZENG LEI

IPC分类号： G01V5/00 ,  G01N23/10

CPC分类号： G01V5/0041 ,  G01V5/0025

摘要： The disclosure provides a multi-power multi-dosage accelerator. The multi-power multi-dosage accelerator comprises an electron gun configured to provide a first voltage of the electron gun and a second voltage of the electron gun, and an accelerating tube configured to generate a first X-ray having a first dosage and first power according to the first voltage of the electron gun and generate a second X-ray having a second dosage and second power according to the second voltage of the electron gun, wherein the first dosage is a dosage which can be accepted by human bodies and is much less than the second dosage, the first X-ray is used for inspecting a first area where a person is located, and the second X-ray is used for inspecting a second area where goods are located.

公开(公告)号：EP2800267A4

公开(公告)日：2016-06-29

申请号：EP12862988

申请日：2012-12-28

申请人： NUCTECH CO LTD ,  UNIV TSINGHUA

发明人： LIU YAOHONG ,  TANG CHUANXIANG ,  YAN XINSHUI ,  JIA WEI ,  GAO JIANJUN ,  LIU JINSHENG ,  YIN WEI ,  LIU XIYING ,  SHI HAO

IPC分类号： H02M1/088 ,  H03K3/64

CPC分类号： H03K3/57 ,  H02M1/088 ,  H02M2003/077 ,  H03K3/64

摘要： The present invention provides a high voltage pulse modulating power source based on alternate group triggering, which comprises: a DC stabilized voltage source for supplying power to the high voltage pulse modulating power source; a plurality of solid-state switches; a plurality of triggers corresponding to said plurality of solid-state switches, wherein each trigger provides a trigger signal to its corresponding solid-state switch to turn on said corresponding solid-state switch, wherein said plurality of triggers are divided into at least two groups of triggers; a time sequence control module, which, at time t1, controls said plurality of triggers to generate trigger signals so as to turn on said plurality of solid-state switches simultaneously, and at time t2, controls one group of said at least two groups of triggers to generate trigger signals to turn on solid-state switches corresponding to this group of triggers, wherein time t1 and time t2 appear alternately.