Gas-filled x-ray detector with improved window

Details Gas-filled x-ray detector with improved window Gas-filled x-ray detector with improved window

1980-04-04

1981-12-15

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250445T, 313 93, 313220, G01T 118

Patent

active

043061559

ABSTRACT:
A multicell x-ray detector of the gas-filled ionization type includes a metal body in which the front, rear, end and bottom walls together with a sealed cover define a channel in which there is a row of spaced apart electrode plates which define cells in which ionization events and resultant analog signals are produced in response to absorption of x-ray photons by the gas. The x-ray entrance window is formed in the front wall and extends over substantially the length of the channel. The window has a curved cross section which permits restriction of its internal stresses to tensile stresses so its thickness and, hence, its x-ray absorption is minimized. The edges of the electrode plates which are presented toward the window are curved to be concentric with and slightly spaced from the window.

REFERENCES:
patent: 3366790 (1968-01-01), Zagorites et al.
patent: 4161655 (1979-07-01), Cotic et al.

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