Radiographic intensifying screen and radiation image producing m

Details Radiographic intensifying screen and radiation image producing m Radiographic intensifying screen and radiation image producing m

1988-01-21

1989-05-30

Fields, Carolyn E.

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

2504861, G01J 158

Patent

active

048353965

ABSTRACT:
An improvement of a radiographic intensifying screen comprises a support and a phosphor layer provided on the support, in which phosphor particles are arranged in the phosphor layer in such manner that the diameters of the phosphor particles become larger along the depth direction of from the screen surface side to the support side. A radiation image producing method utilizes a screen-film system comprising a radiographic film and a radiographic intensifying screen provided on one side of the film or a screen-film system comprising a radiographic film and two radiographic intensifying screens provided on both sides of the film, in each of which the phosphor layer has the above-mentioned specific particle diameter distribution.

REFERENCES:
patent: 4437011 (1984-03-01), Noji et al.
patent: 4472635 (1984-09-01), Yokota et al.
patent: 4507563 (1985-03-01), Mieoka et al.
patent: 4513078 (1985-04-01), Sandrik et al.

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