Radiant energy – Automatic/serial detection of similar sources
Patent
1984-03-28
1985-11-19
Smith, Alfred E.
Radiant energy
Automatic/serial detection of similar sources
250361R, 250370, 250213R, G01T 120, G01T 124
Patent
active
045544530
ABSTRACT:
The invention relates to an apparatus for the taking of X-ray pictures, where there are between two radiation-transmitting electrodes two solid substance layers whose free sides lie in a charge storage layer. The first electrode is a photo-conducting layer which is impinged upon by image rays, while the second electrode is a photo-conducting layer which is impinged upon by an optical ray moved in a scanning raster, so that a reproducible signal is obtained. According to the invention, the time required per image is reduced and increased quantum yield is achieved at increased signal-to-noise ratio and greater dynamic range. There is correlated to the first photo-conducting layer a luminophor which transforms the image rays into light which is preferentially absorbed in this layer. An apparatus according to the invention is usable in particular in medical radio-diagnostics.
REFERENCES:
patent: 3069551 (1962-12-01), Haine
patent: 3348056 (1967-10-01), Kohashi
patent: 4059766 (1977-11-01), Rougeot
patent: 4176275 (1979-11-01), Korn et al.
patent: 4508966 (1985-04-01), Oberschmid et al.
Feigt Ingmar
Heinrich Hans
Kempter Karl
Fields Carolyn E.
Jay Mark H.
Siemens Aktiengesellschaft
Smith Alfred E.
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