Radiant energy – Invisible radiant energy responsive electric signalling – Including a radiant energy responsive gas discharge device
Patent
1986-12-01
1989-04-04
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
Including a radiant energy responsive gas discharge device
250374, 340600, G01T 118
Patent
active
048188840
ABSTRACT:
Apparatus for the continuous monitoring of levels of ionizing radiation in premises for human occupation is provided, including an enclosure for location in premises to be monitored, an ionizing radiation transducer within the enclosure and producing counts in response to radiation incidents, a power supply continuously providing an an operating potential to said radiation transducer, a time base defining monitoring intervals of at least about 5 seconds, a counter for accumulating counts during successive monitoring intervals, and alarm means responsive to the accumulated count during a monitoring interval exceeding a predetermined threshold representing a level of ionizing radiation which if continued over an extended period would expose a human being to a cumulative dosage exceeding a level deemed acceptable.
REFERENCES:
patent: 3654442 (1972-04-01), Leonard et al.
patent: 4596933 (1986-06-01), Waechter et al.
patent: 4642463 (1987-02-01), Thoms
patent: 4721857 (1988-01-01), Kronenberg
Radio Shack Dictionary of Electronics, 1978 pp. 84-694.
Fields Carolyn E.
Miller John A.
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