Title: Solid state radiation detector system

Abstract: A solid state radiation flux detector system utilizes a detector element, consisting of a bar of semiconductor having electrical conductance of magnitude dependent upon the magnitude of photon and charged particle flux impinging thereon, and negative feedback circuitry for adjusting the current flow through a light emitting diode to facilitate the addition of optical flux, having a magnitude decreasing in proportion to any increase in the magnitude of radiation (e.g. X-ray) flux incident upon the detector element, whereby the conductance of the detector element is maintained essentially constant. The light emitting diode also illuminates a photodiode to generate a detector output having a stable, highly linear response with time and incident radiation flux changes.

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Inventors: Kingsley, Jack D. (Schenectady, NY, US)
Woodbury, Henry H. (Scotia, NY, US)

Application Number: 704416
Filing Date: 1976-07-12
Publication_date: 1977-08-30
Assignee: General Electric Company (Schenectady, NY)
Primary Class(es): 250/370.01 250/205
Other Classes:
US Patent Ref:

2938003	May, 1960	Jacobs	250/370.
3479455	Nov, 1969	Gebel	250/371.
3901812	Aug, 1975	Hallengren	250/205.
3932744	Jan, 1976	Anderson	250/205.

Other Refs:
Primary Examiner: Borchelt, Archie R.
Assistant Examiner:
Attorney: Krauss; Geoffrey, Cohen; Joseph T., Squillaro; Jerome C.