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1. 发明授权

US06807248B2 Multisource type X-ray CT apparatus 失效
标题翻译：多源X射线CT装置
公开(公告)号：US06807248B2
公开(公告)日：2004-10-19
申请号：US10302835
申请日：2002-11-25
申请人： Kazumasa Mihara , Susumu Urano , Keiichi Hori , Shin Ogura
发明人： Kazumasa Mihara , Susumu Urano , Keiichi Hori , Shin Ogura
IPC分类号： H05G160
CPC分类号： A61B6/032 , A61B6/4028 , A61B6/4488 , H01J35/025 , H01J35/04 , H01J35/08 , H01J2235/16
摘要： A multisource type X-ray CT apparatus including a fixed sensor array, a fixed vacuum chamber, and an X-ray generation unit. The X-ray generation unit includes a cathode and an anode which are fixed in the vacuum chamber so as to surround the sensor array, a gate array including a plurality of grid electrodes which are densely fixed between the cathode and anode and which include holes for passing the electron beams, a power source which applies a bias voltage to the grid electrodes of the gate array, and a controller which controls the power supply operation from the power source so as to select the grid electrode suitable for image pickup from the gate array in accordance with an image pickup portion of the subject and to release the bias voltage applied to the selected grid electrode.
摘要翻译：一种包括固定传感器阵列，固定真空室和X射线产生单元的多源X射线CT装置。 X射线产生单元包括阴极和阳极，其固定在真空室中以包围传感器阵列;门阵列，包括密集地固定在阴极和阳极之间的多个栅极，并且包括孔，使电子束通过，向栅极阵列的栅格电极施加偏置电压的电源;以及控制器，其控制来自电源的电源操作，以便选择适合于从门阵列进行图像拾取的栅电极根据被摄体的图像拾取部分，并且释放施加到所选择的栅电极的偏置电压。

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