公开(公告)号：US10809207B2

公开(公告)日：2020-10-20

申请号：US15281038

申请日：2016-09-29

申请人： NUCTECH COMPANY LIMITED

发明人： Zhiqiang Chen ,  Yumei Chen ,  Yaohong Liu ,  Xinshui Yan ,  Weiqiang Guan ,  Wei Yin

IPC分类号： G01N23/04 ,  G01T7/00 ,  A61B5/107 ,  A61B6/00 ,  G21K1/06

摘要： The present disclosure provides a ray calibration device and a working method thereof, and a radiation imaging system and a working method thereof, and belongs to the field of radiation imaging technology. The present disclosure can solve the problems that the existing calibration devices have low calibration efficiency and require relatively large spaces. The ray calibration device of the present disclosure includes a driving part, a cam part and a calibration part, wherein the calibration part is located below the cam part; the driving part is adapted to drive the cam part to rotate; and the cam part is adapted to exert a force on the calibration part to enable the calibration part to move into a ray area downwards.

公开(公告)号：US20140320105A1

公开(公告)日：2014-10-30

申请号：US14008921

申请日：2012-12-28

申请人： Nutech Company Limited ,  Tsinghua University

发明人： Yaohong Liu ,  Chuanxiang Tang ,  Xinshui Yan ,  Wei Jia ,  Jianjun Gao ,  Jinsheng Liu ,  Wei Yin ,  Xiying Liu ,  Hao Shi

IPC分类号： H02M1/08

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.

摘要翻译： 本发明提供了一种脉冲调制电源，包括：在放电期间串联连接的多个放电模块; 与所述多个放电模块相对应的多个触发器，其中每个触发器向相应的放电模块提供触发信号以使其接通; 控制逻辑模块，用于控制所述触发信号，以便以时间延迟连续地接通所述多个放电模块; 用于输出电压的输出端子。