Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1976-07-14
1978-02-21
Dixon, Harold A.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250360, 250445T, G01T 120
Patent
active
040754847
ABSTRACT:
A device for correcting measuring values of a group of radiation detectors for measuring the intensity or distribution of radiation, comprising an additional radiation source for direct irradiation of the detectors. The radiation of the said additional radiation source can be switched on each time when the radiation to be measured is not incident on the radiation detectors. The device furthermore comprises a calculating device which forms for each radiation detector the quotient of the measuring value (M1(x)) and the reference measuring value (M2(x)) of the radiaton detectors when exposed to the radiation of the additional radiation source.
REFERENCES:
patent: 2512355 (1950-06-01), Marshall
patent: 2539203 (1951-01-01), Pohl
patent: 2653247 (1953-09-01), Lundahl
patent: 3417244 (1968-12-01), Kramer
patent: 3944830 (1976-03-01), Dissing
Kowalski Gunter
Meyer-Ebrecht Dietrich
Dixon Harold A.
Trifari Frank T.
U.S. Philips Corporation
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