Ionization detector with improved radiation source

Details Ionization detector with improved radiation source Ionization detector with improved radiation source

1975-09-11

1977-02-08

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250381, 250385, G01T 118

Patent

active

040073742

ABSTRACT:
The detector comprises a chamber having at least one radiation source disposed therein. The chamber includes spaced collector plates which form a part of a detection circuit for sensing changes in the ionization current in the chamber. The radiation source in one embodiment is in the form of a wound wire or ribbon suitably supported in the chamber and preferably a source of beta particles. The chamber may also include an adjustable electrode and the source may function as an adjustable current source by forming the wire or ribbon in an eliptical shape and rotating the structure. In another embodiment the source has a random shape and is homogeneously disposed in the chamber.

REFERENCES:
patent: 2976677 (1961-03-01), Taylor
patent: 3018376 (1962-01-01), Vanderschmidt
patent: 3728706 (1973-04-01), Tipton et al.
patent: 3870888 (1975-03-01), Lovelock

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