Radiation detector

Details Radiation detector Radiation detector

1994-09-01

1996-08-20

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

25037011, G01T 124

Patent

active

055481221

ABSTRACT:
A radiation detector comprises a plurality of solid-state photo detecting devices arrayed in a one-dimensional direction or in two-dimensional directions. The solid-state photo detecting devices detect radiation carrying image information, convert the radiation into an analog image signal, which represents the image information as a whole, and feed out the analog image signal. A logarithmic converter is located for each group of a predetermined number of the solid-state photo detecting devices. The logarithmic converter associated with each group logarithmically converts a group of image signal components of the analog image signal, which are fed out of the group of the predetermined number of the solid-state photo detecting devices, and feeds out the group of the image signal components of the logarithmically converted analog image signal.

REFERENCES:
patent: 4153839 (1979-05-01), Hounsfield et al.
patent: 4996413 (1991-02-01), McDaniel et al.
patent: 5138642 (1992-08-01), McCroskey et al.
patent: 5241576 (1993-08-01), Lonn
patent: 5245191 (1993-09-01), Barber et al.

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