Stimulable phosphor panel and method of producing stimulable phosphor panel

Abstract

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 substrate which has a groove formed so as to surround a predetermined region;    a frame which is inserted into said groove to be fixed to said substrate, surrounds an inner side of said groove and protrudes from a surface of said substrate; and    a stimulable phosphor layer which is formed by vacuum evaporation on the surface of said substrate surrounded by said frame.    
     
     
         2 . The stimulable phosphor panel according to  claim 1 , further comprising a moisture-proof protective layer which covers said frame and said stimulable phosphor layer.  
     
     
         3 . The stimulable phosphor panel according to  claim 2 , wherein said moisture-proof protective layer is bonded to an upper surface of said frame.  
     
     
         4 . The stimulable phosphor panel according to  claim 1 , wherein said frame is fixed to the groove by an adhesive.  
     
     
         5 . The stimulable phosphor panel according to  claim 4 , wherein a heat resistant epoxy adhesive is used for said adhesive.  
     
     
         6 . The stimulable phosphor panel according to  claim 1 , wherein a difference in height between the upper surface of said frame and a surface of said stimulable phosphor layer is 0.1 mm or less.  
     
     
         7 . The stimulable phosphor panel according to  claim 3 , wherein said moisture-proof protective layer and said stimulable phosphor layer are bonded to each other.  
     
     
         8 . The stimulable phosphor panel according to  claim 2 , wherein said moisture-proof protective layer comprises a base, a first S102 film formed on a surface of said base, a hybrid layer of Si02 and polyvinyl alcohol formed on said first Sb2 film, and a second 5102 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 which includes a substrate, a stimulable phosphor layer formed on a surface of said substrate by vacuum evaporation and a frame fixed to said substrate so as to surround said stimulable phosphor layer, comprising the steps of: 
 fixing said frame to said substrate;    attaching a detachable tape to an upper surface of said frame to restrict formation of said stimulable phosphor layer within said frame; and    forming said stimulable phosphor layer by said vacuum evaporation.    
     
     
         11 . The method of producing the stimulable phosphor panel according to  claim 10 , further comprising the step of: 
 forming a moisture-proof protective layer whch covers said frame and said s    
     
     
         12 . The method of producing the stimulable phosphor panel according to  claim 11 , wherein said moisture-proof protective layer is bonded to an upper surface of said frame.  
     
     
         13 . The method of producing the stimulable phosphor panel according to  claim 12 , wherein said moisture-proof protective layer is bonded to said stimulable phosphor layer.  
     
     
         14 . The method of producing the stimulable phosphor panel according to  claim 10 , wherein a difference in height between the upper surface of said frame and a surface of said stimulable phosphor layer is 0.1 mm or less.  
     
     
         15 . The method of producing the stimulable phosphor panel according to  claim 10 , said fixing step of said frame comprises the step of: 
 forming a groove in said substrate;    and inserting said frame into said groove to fix said frame to said substrate.    
     
     
         16 . The method of producing the stimulable phosphor panel according to  claim 10 , wherein said frame is fixed to said substrate by an adhesive.  
     
     
         17 . The method of producing the stimulable phosphor panel according to  claim 16 , wherein a heat resistant epoxy adhesive is used for said adhesive.  
     
     
         18 . The method of producing the stimulable phosphor panel according to  claim 11 , wherein said moisture-proof protective layer comprises a base, a first S102 film formed on a surface of said base, a hybrid layer of 5102 and polyvinyl alcohol formed on said first Si02 film, and a second Si02 film formed on said hybrid layer.  
     
     
         19 . The method of producing the stimulable phosphor panel according to  claim 10 , wherein said stimulable phosphor layer is formed of a stimulable phosphor represented by CsBr:Eu.