Radiation dose rate meter

Details Radiation dose rate meter Radiation dose rate meter

1980-01-04

1981-07-28

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250374, 250378, H01J 3929, H01J 3930

Patent

active

042812500

ABSTRACT:
A combined dose rate meter and charger unit therefor which does not require he use of batteries but on the other hand produces a charging potential by means of a piezoelectric cylinder which is struck by a manually triggered hammer mechanism. A tubular type electrometer is mounted in a portable housing which additionally includes a Geiger-Muller (GM) counter tube and electronic circuitry coupled to the electrometer for providing multi-mode operation. In one mode of operation, an RC circuit of predetermined time constant is connected to a storage capacitor which serves as a timed power source for the GM tube, providing a measurement in terms of dose rate which is indicated by the electrometer. In another mode, the electrometer indicates individual counts.

REFERENCES:
patent: 2668245 (1954-02-01), Rich
patent: 2871365 (1959-01-01), Cahen et al.
patent: 2884533 (1959-04-01), Richard-Foy
patent: 2898472 (1959-08-01), Hollmann

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