Radiation detection device

Details Radiation detection device Radiation detection device

1978-10-20

1981-02-24

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250385, G01T 118

Patent

active

042530245

ABSTRACT:
A radiation detection device comprising a housing which comprises an entrance window and in which at least one ionization chamber detector is arranged. The detector comprises a flat high-voltage electrode which is directed transversely transverse the entrance window and a flat collector electrode which is arranged to be at least substantially parallel to the high-voltage electrode. The end faces of these electrodes which face the entrance window are in electrical contact with a flat auxiliary electrode which extends parallel to the entrance window. As a result, a small direct current flows in a direction transverse to the other electrodes during operation, because the auxiliary electrode has a low electrical conductivity. Consequently, the electrical field in the ionization chamber detector is very homogeneous, with the result that the measuring speed can be optimized.

REFERENCES:
patent: 2837678 (1958-06-01), Hendee et al.
patent: 3609435 (1971-09-01), Taylor et al.
patent: 3784951 (1974-01-01), Steidel
patent: 3934165 (1976-01-01), Meekins

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