Imaging radiation detector with gain

Details Imaging radiation detector with gain Imaging radiation detector with gain

1982-07-21

1984-10-23

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

G01T 118

Patent

active

044790597

ABSTRACT:
A radiation imaging device which has application in x-ray imaging. The device can be utilized in CAT scanners and other devices which require high sensitivity and low x-ray fluxes. The device utilizes cumulative multiplication of charge carriers on the anode plane and the collection of positive ion charges to image the radiation intensity on the cathode plane. Parallel and orthogonal cathode wire arrays are disclosed as well as a two-dimensional grid pattern for collecting the positive ions on the cathode.

REFERENCES:
patent: 3772521 (1973-11-01), Perez-Mendez
patent: 4320299 (1982-03-01), Bateman et al.
patent: 4392057 (1983-07-01), Mathieson et al.
Borkowski et al, "New Type of Position-Sensitive Detectors of Ionizing Radiation Using Rise-Time Measurement," Rev. Sci. Instrum. 39, No. 10, pp. 1515-1522, (Oct. 1968).
Mathieson, "Linearity and Noise Considerations for Position Sensitive Detectors," Nuc. Instrum. and Meth. 97, pp. 171-176, (1971).

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