发明授权
- 专利标题： Alignment of an x-ray tube focal spot using a deflection coil
- 专利标题（中）： 使用偏转线圈对x射线管焦点进行对准
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申请号： US345082申请日： 1994-11-28
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公开(公告)号： US5550889A公开(公告)日： 1996-08-27
- 发明人: Michael F. Gard , Stephen W. Gravelle , Jiang Hsieh , Quan N. Lu , John W. Newman , Thomas L. Toth , Michael A. Wu
- 申请人： Michael F. Gard , Stephen W. Gravelle , Jiang Hsieh , Quan N. Lu , John W. Newman , Thomas L. Toth , Michael A. Wu
- 申请人地址： WI Waukesha
- 专利权人： General Electric
- 当前专利权人： General Electric
- 当前专利权人地址： WI Waukesha
- 主分类号： H01J35/14
- IPC分类号： H01J35/14 ; H01J35/26 ; H01J35/30 ; H05G1/26 ; H05G1/52
摘要：
Precise alignment of the focal spot position on an x-ray CT system is achieved using a deflection coil that produces a magnetic field which acts on the electron beam path in the x-ray tube. A variable current power supply drives the deflection coil and is controlled by input signals to align the focal spot at a static reference position, to correct for focal spot drift between scans, and to wobble the focal spot position during a scan or between scans.
公开/授权文献
- US5053762A Page turn simulator 公开/授权日：1991-10-01
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