发明名称 |
SYSTEMS, METHODS AND DEVICES FOR X-RAY DEVICE FOCAL SPOT CONTROL |
摘要 |
Systems, methods and devices for implementing automatic control of focal spot Z axis positioning are disclosed for use with an x-ray device having an x-ray tube positioned within a housing and configured for thermal communication with a temperature control system. Control circuitry, and a position sensing device configured to determine the distance between the focal spot and a reference point related to the x-ray device, are coupled with a control module. The position sensing device sends information concerning the relative distance between the focal spot and the reference point to the control module which compares the received information with a predetermined desired distance. If the received information varies by an unacceptably large margin from the desired distance, the control module sends a corresponding signal to the control circuitry which causes the temperature control system to implement an appropriate change to a heat transfer parameter associated with the x-ray device.
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申请公布号 |
US2008037713(A1) |
申请公布日期 |
2008.02.14 |
申请号 |
US20070876656 |
申请日期 |
2007.10.22 |
申请人 |
VARIAN MEDICAL SYSTEMS TECHNOLOGIES, INC. |
发明人 |
ANDREWS GREGORY C.;SMITH RICKY |
分类号 |
H05G1/02;G21G4/00;H01J35/00;H05G1/52;H05H1/00 |
主分类号 |
H05G1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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