| 摘要 |
An improvement of a radiation image storage panel comprising a stimulable phosphor layer which comprises stimulable phosphor particles, a binder and a colorant resides in that a weight ratio of binder to phosphor particles and concentration of coloring are varied along the depth of the phosphor layer in such manner that a mean value of a weight ratio of binder to phosphor particles within +E,fra 1/4+EE of the depth of the phosphor layer from one surface thereof is larger than a mean value of a weight ratio of binder to phosphor particles between +E,fra 1/4+EE and +E,fra 3/4+EE of the depth of the phosphor layer, and a mean value of a weight ratio of colorant to phosphor particles within +E,fra 1/4+EE of the depth of the phosphor layer from the surface is smaller than a mean value of the weight ratio of colorant to phosphor particles between +E,fra 1/4+EE and +E,fra 4/4+EE of the depth of the phosphor layer from the surface.
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