Abstract: A preparation process of a particulate rare earth activated alkaline earth metal fluorohalide stimulable phosphor represented by formula (1) is disclosed, wherein precursor particles of the stimulable phosphor, prepared in the liquid phase process are covered with fine particles of at least two kinds of metal oxides and then subjected to calcination. A radiation image conversion panel containing the stimulable phosphor particles is also disclosed.

Abstract: A housing for accommodating a radiation detecting member, has a first plate member to which radiation is incident from an outside of the housing; a second plate member arranged opposite to the first plate member; a radiation detecting member provided between the first plate member and the second plate member and having a radiation receiving surface to detect the radiation having passed through the first plate member; and a scattering radiation shielding member arranged at a radiation receiving surface side of the radiation detecting member and to eliminate scattering radiation from the radiation before the radiation is detected by the radiation receiving surface.

Abstract: A preparation process of a particulate rare earth activated alkaline earth metal fluorohalide stimulable phosphor represented by formula (1) is disclosed, wherein precursor particles of the stimulable phosphor, prepared in the liquid phase process are covered with fine particles of at least two kinds of metal oxides and then subjected to calcination. A radiation image conversion panel containing the stimulable phosphor particles is also disclosed.

Abstract: A radiation image conversion panel comprising, (i) a phosphor sheet which contains a support having thereon an stimulating light absorbing layer (A) being colored to absorb the stimulating light, and a stimulable phosphor layer in the order;and (ii) a protecting layer which covers the stimulable phosphor layer of the phosphor sheet, wherein the protective layer comprises a stimulating light absorbing layer (B) being colored to absorb the stimulating light, and the layers (A) and (B) each have a smaller absorbance at a peak wavelength of a stimulated emission than an absorbance at a peak wavelength of the stimulating light, and a thickness of the layer (A) is larger than a thickness of the layer (B).

Abstract: A radiation image conversion panel comprising a phosphor sheet having a support and a stimulable phosphor layer provided on the support and a protective film covering the stimulable phosphor layer, wherein a transmittance of the protective film for stimulating light is not larger than 97% and a haze ration of the protective film is within the range of 5% to 60%.

Abstract: A method for preparing a stimulable phosphor is disclosed, comprising forming a stimulable phosphor and coating the formed stimulable phosphor with a metal oxide and a silane coupling agent, or a metal oxide and a metal alkoxide. Another method is also disclosed, comprising forming a stimulable phosphor precursor, calcining the formed precursor in the presence of a metal oxide or metal alkoxide, and coating the calcined precursor with a silane coupling agent or metal alkoxide. Further disclosed is a preparation method of a radiation image conversion panel containing the stimulable phosphor.

Abstract: An information recording material having thereon an image carrier layer composed of a hydrophilic polymer and a protective covering layer. The protective covering layer contains an aqueous polyurethane resin or an aqueous polyacryl resin. An information recording material which is excellent in terms of water resistance, anti-scratch property, glossiness, image storage stability and resistance to fingerprints is obtained.

Abstract: A color image forming method is disclosed, comprising developing a silver halide photographic material and bleach and/or fixing the photographic material, wherein the color image is formed in the presence of a dextran. The dextran may be incorporated in the photographic material or a processing solution.