Dual energy imaging

Details Dual energy imaging Dual energy imaging

1982-12-10

1985-04-16

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250370, 250374, G01T 116, G01T 1185, G01T 120

Patent

active

045117993

ABSTRACT:
Dual energy imaging develops simultaneous signals from transmitted energy of different characteristics. The detector includes two serially arranged detectors. A first detector preferentially absorbs lower level radiant energy and the second detector preferentially absorbs higher radiant energy. The detectors may be identical in which case the preferential characteristic is developed by reason of the detector's position. Alternatively, the characteristics of the detectors may be selected to produce the desired effect, e.g. a gaseous detector may be pressurized in accordance with its function, a scintillating screen may be tilted or its length may be selected to produce the desired absorption characteristic.

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