Linear radiation detector

Details Linear radiation detector Linear radiation detector

1989-03-10

1990-11-27

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250374, G01T 1185

Patent

active

049738461

ABSTRACT:
Radiation detection methods and apparatus measure ionizing radiation propagating from a radiation source, utilizing a chamber having an electrically conductive sheet, an electrode assembly spaced apart from the conductive sheet and segmented into a plurality of electrically discrete electrode segments, and an ionizable medium disposed between the electrode assembly and conductive sheet, for absorbing the ionizing radiation and generating charged particles in proportion to the radiation energy absorbed. An electrical potential can be provided between the electrode assembly and conductive sheet, so that respective electrode segments collect the charged particles. Elements are provided for comparing the number of charged particles collected on respective electrode segments, to provide a measure of the energy distribution of the ionizing radiation, and for compensating for changes in capacitance or electrical potential between the electrode segments and the electrically conductive sheet elements.

REFERENCES:
patent: 3891851 (1975-06-01), Fletcher et al.
patent: 4031396 (1977-06-01), Whetten et al.
patent: 4129783 (1978-12-01), Houston
patent: 4485307 (1984-11-01), Osborne et al.
patent: 4613313 (1986-09-01), Steele
patent: 4613314 (1986-09-01), Steele
patent: 4859855 (1989-08-01), Vlasbloem

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