Ionizing radiation detector adapted for use with tomography syst

Details Ionizing radiation detector adapted for use with tomography syst Ionizing radiation detector adapted for use with tomography syst

1980-01-31

1981-11-17

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250445T, H01J 3928

Patent

active

043013686

ABSTRACT:
An improved ionizing radiation detector functioning in a proportional chamber mode, for use with X-ray tomography systems, is disclosed. The detector includes an elongated housing enclosing a chamber, a high pressure gas of great atomic weight and substantially opaque to x-radiation in the chamber, anodes and cathodes mounted in the chamber enclosed in the gas, and a voltage supply for supplying a positive voltage to the anode and a negative voltage to the cathode. The housing includes a window substantially transparent to x-radiation. The cathodes are plate-type cathodes and the anodes are composed of a plurality of metal wires extending parallel to the beam direction of the radiation to be detected at spaced intervals within a substantially claim, and the anodes and cathodes are parallel to each other. Means are provided to separately detect the voltage pulse on each anode wire.

REFERENCES:
patent: 3092747 (1963-06-01), Fine et al.
patent: 3703638 (1972-11-01), Allemand et al.
patent: 4075492 (1978-02-01), Boyd et al.
patent: 4190771 (1980-02-01), Kamei et al.
patent: 4193000 (1980-03-01), Shirayama et al.

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