Position sensitive area detector for use with X-ray diffractomet

Details Position sensitive area detector for use with X-ray diffractomet Position sensitive area detector for use with X-ray diffractomet

1976-07-29

1978-02-28

Anderson, Bruce C.

Radiant energy

Coded record and readers; invisible radiant energy type

250385, G01M 2320

Patent

active

040769810

ABSTRACT:
A position sensitive detector including a curved detector housing having a hollow detector chamber therein, the housing having an elongate opening in the curved side wall thereof and an x-ray transmissive material adjacent thereto to render the detector chamber air-tight, a back cathode plane comprising a plurality of spaced cathode conductors on an insulator support and at least one curved anode wire, extending at least substantially transverse to the back cathode plane, disposed within the detector chamber in the path of x-rays entering through the elongate opening. Each anode wire, which is mechanically supported only at the ends thereof, is caused, during operation of the detector, to be supported in planar arcuate form solely by electrostatic forces. During operation of the detector, the chamber is filled with an ionizable gas and voltage is applied to the curved anode wire(s), thereby enabling detection of ionizing events occuring within the detector chamber.
The detector is particularly adapted to use with x-ray diffractometers, particularly of the powder type, but is also adapted for use with single crystal x-ray diffractometers and x-ray cameras.

REFERENCES:
patent: 2476150 (1949-07-01), Koppius
patent: 2860254 (1958-11-01), Hendee
patent: 3911279 (1975-10-01), Gilland et al.
patent: 3975639 (1976-08-01), Allemand

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