Radiation image reading apparatus

Details Radiation image reading apparatus Radiation image reading apparatus

1993-08-26

1995-04-04

Hannaher, Constantine

Radiant energy

Source with recording detector

Using a stimulable phosphor

G03B 4202

Patent

active

054040248

ABSTRACT:
A radiation image reading apparatus for reading radiation images from an accelerated phosphorescence fluorescent material object on which a radiation image of a subject is accumulated and stored and is intended to obtain a radiation image on which radiation image information which is distributed in a wide range of radiation intensity may be displayed with an optimal density (brightness) without deterioration of contrast resolution. The radiation image reading apparatus is provided with a long-range electron multiplier tube having a plurality of photomultipliers or a plurality of secondary electron multiplying parts which are arrayed along a main scanning direction and controls independently respective sensitivities of these photomultipliers.

REFERENCES:
patent: 4616129 (1986-10-01), Yamada et al.
patent: 4742225 (1988-05-01), Chan
patent: 4959545 (1990-09-01), Arakawa et al.
patent: 5081356 (1992-01-01), Horikawa

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