Electret devices for measuring ionizing radiation

Details Electret devices for measuring ionizing radiation Electret devices for measuring ionizing radiation

1981-01-21

1983-08-30

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250375, G01T 118

Patent

active

044018916

ABSTRACT:
The device comprises, on the one hand, a cassette containing an electret between two electrodes and, on the other hand, a fixed reader adapted to receive the cassette in a pocket, to identify it, to measure the charge of its electret and to display data relating to this charge. This reader comprises also a head adapted to record the data on an area (or strip) of the cassette and there are provided readers independent of the aforesaid reader adapted to subsequently receive the cassette, to measure the charge of its electret, to read the data and, by difference between the measured value and that read, to display the radiation dose received by the cassette since its recording.

REFERENCES:
patent: 3010021 (1961-11-01), Roesch et al.
patent: 4284892 (1981-08-01), Hulot et al.

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