Light switched segmented tomography detector

Details Light switched segmented tomography detector Light switched segmented tomography detector

1980-07-16

1982-12-14

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250370, G01T 120, G01T 122

Patent

active

043639690

ABSTRACT:
An array of optically isolated small area scintillators overlie a duophotoconductive sandwich, which includes interdigitated electrodes. The sandwich structure wound each interdigitated electrode is precharged to act as a separate small area detector. The duophotoconductive sandwich includes a photoconductive layer adjacent the scintillators and a second photoconductive layer which, in cooperation with the interdigitated electrodes, acts as a switch, when activated by a beam capable of generating charge carriers in the photoconductor, thus successively connecting each of the small area detectors to a low noise preamplifier.
Two embodiments, an experimental setup and a method of operation are disclosed.

REFERENCES:
patent: 3936645 (1976-02-01), Iversen
patent: 4101924 (1978-07-01), Brown et al.
patent: 4233514 (1980-11-01), Kingsley

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