Radiographic intensifying screen and radiation image producing method
First Claim
1. A radiographic intensifying screen comprising 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.
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Accused Products
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.
16 Citations
18 Claims
- 1. A radiographic intensifying screen comprising 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.
- 5. A radiation image producing method utilizing a screen-film system which comprises a radiographic film and a radiographic intensifying screen provided on one side of the radiographic film, wherein said radiographic intensifying screen comprises a support and a phosphor layer provided on the support, and 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 near the radiographic film to the support side.
- 12. A radiation image producing method utilizing a screen-film system which comprises a radiographic film and radiographic intensifying screens provided on the front and back sides of the radiographic film, wherein each of said radiographic intensifying screens comprises a support and a phosphor layer provided on the support, phosphor particles of the phosphor layer of the radiographic intensifying screen provided on a radiation impinging side are arranged in such manner that diameters of the phosphor particles become smaller along the depth direction of from the screen surface side facing the radiographic film to the support side, and phosphor particles constituting the phosphor layer of the radiographic intensifying screen provided on the opposite side of the radiation impinging side are arranged in such manner that diameters of the phosphor particles become larger along the depth direction of from the screen surface side facing the radiographic film to the support side.
Specification