Radiant energy – Invisible radiant energy responsive electric signalling – Including a radiant energy responsive gas discharge device
Patent
1989-02-15
1990-09-11
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Including a radiant energy responsive gas discharge device
2503541, 378145, G21K 104, G01T 1185
Patent
active
049565575
ABSTRACT:
There is disclosed a dosimeter to be used in connection with slit radiography and comprised of a gas filled chamber with one side wall provided with a plurality of X-ray transparent strip-like electrodes extending substantially transversely to a longitudinal direction of the oblong-shaped casing and another side wall provided with wire electrodes extending parallel to such longitudinal direction of the oblong-shaped casing wherein each of the strip-like electrodes generates a signal representative of intensity of ionizing radiation and wherein the strip-like electrodes are divided into a number of groups, signals from the strip-like electrodes belonging to each group are combined to provide a control signal for a respective attenuation element.
REFERENCES:
patent: 4057728 (1977-11-01), Peschmann et al.
patent: 4264816 (1981-04-01), Walenta
patent: 4553062 (1985-11-01), Ballon et al.
patent: 4675893 (1987-06-01), Duinker et al.
patent: 4751391 (1988-06-01), Eberhard et al.
patent: 4859855 (1989-08-01), Vlasbloem
B.V. Optische Industrie `de Oude`
Glick Edward J.
Hannaher Constantine
Marn Louis E.
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