Electronic alpha particle counter

Radiant energy – Invisible radiant energy responsive electric signalling – Semiconductor system

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Details

250255, 250364, G01T 122

Patent

active

041045238

ABSTRACT:
There is provided an improved radon-222 detector device for counting alpha particles originating from radon-222 gas including an alpha particle permeable window in one end of a body and a surface barrier type semiconductor detector adjacent thereto and spaced from the window, and characterized by a moisture attenuating means adjacent the window and the detector.

REFERENCES:
patent: 3056886 (1962-10-01), Glaude et al.
patent: 3558884 (1971-01-01), Babich et al.
patent: 3968371 (1976-07-01), Greendale

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