Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1980-09-29
1983-07-19
Smith, Alfred E.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250367, G01T 120
Patent
active
043945767
ABSTRACT:
An apparatus for a detecting the location of incident radiation comprises at least one pair of assembly comprised of a scintillation crystal consisting of a plurality of crystal segments, a pair of photo-multiplier tubes optically coupled to the scintillation crystal so as to be able to detect a scintillation produced in any one of these crystal segments. These plural crystal segments are coupled to each other in such manner that any scintillation produced in any single crystal segment will cause the photo-multiplier tubes to deliver substantially a same output irrespective of the illuminating position within this crystal segment, and also that scintillations produced in the respective crystal segments will cause the photo-multiplier tubes to deliver outputs which are different in level for the respective crystal segments.
REFERENCES:
patent: 3720831 (1973-03-01), Miraldi
patent: 3898463 (1975-08-01), Noakes
patent: 4267452 (1981-05-01), Govaert
patent: 4292538 (1981-09-01), Carlson
Ishimatsu Kenji
Murayama Hideo
Nohara Norimasa
Ogushi Akira
Takami Katsumi
Baker Joseph J.
Ferguson Jr. Gerald J.
Hitachi Medical Corporation
Howell Janice A.
National Institute of Radiological Sciences
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