发明名称 |
Multiple sensor position locating system |
摘要 |
A system for locating the position of a source of a detachable emittance is particularly adapted for locating the position of a scintillation event in a scintillation crystal which has arranged adjacent thereto a plurality of photomultiplier tubes arranged in a predetermined configuration for detecting the scintillation event. In a single photon emission computer tomography (SPECT) embodiment, a system which utilizes the present invention is initialized by storing weighting factors which are derived from placing a source of radiation in a plurality of known locations. The output values of the photomultiplier tubes are stored in a calibration file and subjected to a mathematical process to produce the weighting factors which are subsequently stored in a memory. During operation of the system, the signal values from the photomultiplier tubes are combined with the weighting factors to produce weighted signals which are then summed together to produce a composite weighted signal. The addresses of the weighting factors are correlated to position information; the correct position information being determined in response to the composite weighted signal assuming a predetermined value.
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申请公布号 |
US4852056(A) |
申请公布日期 |
1989.07.25 |
申请号 |
US19860876762 |
申请日期 |
1986.06.20 |
申请人 |
THE UNIVERSITY OF MICHIGAN |
发明人 |
ROGERS, W. LESLIE;CLINTHORNE, NEAL H. |
分类号 |
G01T1/164 |
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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