Radiacmeter with null deflection system

Radiant energy – Invisible radiant energy responsive electric signalling – Including a radiant energy responsive gas discharge device

Patent

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Details

250370, G01T 118

Patent

active

041031644

ABSTRACT:
A portable gamma radiation dose rate meter suitable for use over 3 or 4 decades over the dose rate range 0.1 mR/hr and 1000 R/hr which incorporates an ion chamber or other radiation detector and a null deflection readout system using a calibrated potentiometer and two single light emitting diodes as high and low indicators.

REFERENCES:
patent: 3539809 (1970-11-01), Lokerson
patent: 3878496 (1975-04-01), Erickson
patent: 3984690 (1976-10-01), Marshall et al.

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