发明名称 |
Method and apparatus for producing and utilizing flashes of light which simulate scintillation events |
摘要 |
Light emitting diodes (LEDs) at fixed locations are placed at the entrance face of the scintillator within the detector head of a scintillation camera system. By energizing the LEDs, surrogate scintillation events may be generated and processed by the scintillation camera system. Information thus acquired can be used to maintain the photodetectors in a well-tuned state, to identify baseline shifts in the preamplifier channels and to determine system deadtime.
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申请公布号 |
US5376797(A) |
申请公布日期 |
1994.12.27 |
申请号 |
US19930116656 |
申请日期 |
1993.09.03 |
申请人 |
SIEMENS MEDICAL SYSTEMS, INC. |
发明人 |
PERSYK, DENNIS E.;DEVITO, RAYMOND P. |
分类号 |
G01T1/164;G01D18/00;G01T1/208;G01T1/40;(IPC1-7):G01D18/00 |
主分类号 |
G01T1/164 |
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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