Stimulable phosphor panel and method of producing stimulable phosphor panel
View Patent ↗The stimulable phosphor panel includes a support having a substrate or the substrate and a sealing member, a stimulable phosphor layer formed on the substrate being the support through gas phase deposition, a moisture-proof protective layer for sealing the stimulable phosphor layer and a sealing adhesive layer for bonding an outer periphery of the moisture-proof protective layer to the support. The sealing adhesive layer has a moisture permeability of 1,000 g/m 2 ·day or less as an adhesive after curing, a width of 2 mm to 10 mm, and a thickness of 0.5 μm to 20 μm. The producing method forms the stimulable phosphor layer on the support through gas phase deposition, forms the adhesive layer and bonds the moisture-proof protective layer to the support through the adhesive layer. The stimulable phosphor panel is capable of preventing deterioration of its characteristics due to moisture absorption over a long period of time.
1. A stimulable phosphor panel comprising:
a support;
a stimulable phosphor layer formed on said support through gas phase deposition;
a moisture-proof protective layer for sealing said stimulable phosphor layer on said support; and
a sealing adhesive layer for bonding an outer periphery of said moisture-proof protective layer to said support,
wherein said sealing adhesive layer has a moisture permeability of 1,000 g/m 2 ·day or less as an adhesive after curing, a width of 2 mm to 10 mm, and a thickness of 0.5 μm to 20 μm.
2. The stimulable phosphor panel according to claim 1 , wherein said support comprises a substrate on which said stimulable phosphor layer is formed and to which said moisture-proof protective layer is bonded through said sealing adhesive layer.
3. The stimulable phosphor panel according to claim 2 , wherein said stimulable phosphor adhesive layer and said sealing adhesive layer are unified.
4. The stimulable phosphor panel according to claim 1 , wherein a surface of said stimulable phosphor layer and said moisture-proof protective layer are bonded together through a stimulable phosphor adhesive layer.
5. The stimulable phosphor panel according to claim 1 , wherein said support comprises a substrate on which said stimulable phosphor layer is formed and a sealing member which surrounds said stimulable phosphor layer in a surface direction of said substrate and is bonded to said moisture-proof protective layer through said sealing adhesive layer.
6. The stimulable phosphor panel according to claim 5 , wherein a difference between heights of said sealing member and said stimulable phosphor layer is 0.1 mm or less.
7. The stimulable phosphor panel according to claim 5 , wherein a groove whose shape corresponds to a bottom surface of said sealing member is formed in a surface of said substrate and said sealing member is inserted into said groove.
8. The stimulable phosphor panel according to claim 1 , wherein said moisture-proof protective layer comprises a base, a first SiO 2 film formed on a surface of said base, a hybrid layer of SiO 2 and polyvinyl alcohol formed on said first SiO 2 film, and a second SiO 2 film formed on said hybrid layer.
9. The stimulable phosphor panel according to claim 1 , wherein said stimulable phosphor layer is formed of a stimulable phosphor represented by CsBr:Eu.
10. A method of producing a stimulable phosphor panel comprising:
forming a stimulable phosphor layer on a support through gas phase deposition;
forming an adhesive layer so as to have a width in a range of 2 mm to 10 mm and a thickness in a range of 0.5 μm to 20 μm after sealing, by using an adhesive having a moisture permeability of 1,000 g/m 2 ·day or less after curing; and
bonding a moisture-proof protective layer to said support through said adhesive layer to seal said stimulable phosphor layer formed on said support.
11. The method according to claim 10 , wherein said support comprises a substrate, said stimulable phosphor layer is formed on said substrate and said moisture-proof protective layer is bonded to said substrate through said sealing adhesive layer.
12. The method according to claim 11 , wherein said adhesive layer is formed on an entire surface of said moisture-proof protective layer.
13. The method according to claim 10 , wherein a surface of said stimulable phosphor layer and said moisture-proof protective layer are bonded together while said stimulable phosphor layer is sealed.
14. The method according to claim 10 , wherein said support comprises a substrate on which said stimulable phosphor layer is formed and a sealing member which surrounds in an outer periphery of said substrate a region where said stimulable phosphor layer is formed and which is fixed on said substrate prior to forming said stimulable phosphor layer, and said sealing member and said moisture-proof protective layer are bonded together through said adhesive layer to seal said stimulable phosphor layer.
15. The method according to claim 14 , wherein a difference between heights of said sealing member and said stimulable phosphor layer is 0.1 mm or less.
16. The method according to claim 14 , wherein a groove whose shape corresponds to a bottom surface of said sealing member is formed in a surface of said substrate and said sealing member is inserted into said groove.
17. The method according to claim 10 , wherein said stimulable phosphor layer is sealed with said adhesive layer through heat lamination.
18. The method according to claim 17 , wherein said adhesive layer is heated in a range of a temperature lower than a softening point of said adhesive layer by 30° C. to 150° C. prior to said heat lamination.
19. The method according to claim 10 , wherein said moisture-proof protective layer comprises a base, a first SiO 2 film formed on a surface of said base, a hybrid layer of SiO 2 and polyvinyl alcohol formed on said first SiO 2 film, and a second SiO 2 film formed on said hybrid layer.
20. The method according to claim 10 , wherein said stimulable phosphor layer is formed of a stimulable phosphor represented by CsBr:Eu.