Ionization particle detector

Details Ionization particle detector Ionization particle detector

1979-03-05

1981-08-25

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

H01J 4702

Patent

active

042861608

ABSTRACT:
An ionization particle detector for indicating the presence of charged particles in a gas includes a single ionization chamber having two defined regions of electrical field intensity. The first region is of small geometric volume and high electric field intensity while the second region is of large geometric volume and low electric field intensity. The radioactive source for generating the ions is located near one electrode while the second electrode forming the walls of the chamber are located such that the walls are incident near the Bragg ionization peak of the detector. A probe is positioned between the two regions for detecting the maximum electric field change when particles enter the chamber.

REFERENCES:
patent: 3521263 (1970-07-01), Lampart et al.
patent: 4012729 (1977-03-01), Weaver et al.
patent: 4044263 (1977-08-01), Ried, Jr. et al.
patent: 4081684 (1978-03-01), Wieder

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