Binderless storage phosphor screen comprising a support including an amorphous (a-C) carbon layer

Abstract

A binderless storage phosphor screen comprises a vacuum deposited, phosphor layer on a support, wherein the support includes a layer of amorphous carbon and, optionally, one or more auxilliary layers.

What is claimed is:  
     
         1 . A binderless storage phosphor panel or screen comprising a vacuum deposited phosphor layer ( 1 ) on a support ( 2 ), characterized in that said support includes a layer of amorphous carbon ( 23 ).  
     
     
         2 . A binderless phosphor panel or screen according to  claim 1 , wherein said support further includes a polymeric auxiliary layer ( 24 ) farther away from said phosphor layer than said layer of amorphous carbon.  
     
     
         3 . A binderless phosphor panel or screen according to  claim 1 , wherein said support further includes a reflective auxiliary layer ( 22 ).  
     
     
         4 . A binderless phosphor panel or screen according to  claim 2 , wherein said support further includes a reflective auxiliary layer ( 22 ).  
     
     
         5 . A binderless phosphor panel or screen according to  claim 3 , wherein said reflective auxiliary layer ( 22 ) is an aluminum layer with a thickness between 0.2 μm and 200 μm.  
     
     
         6 . A binderless phosphor panel or screen according to  claim 4 , wherein said reflective auxiliary layer ( 22 ) is an aluminum layer with a thickness between 0.2 μm and 200 μm.  
     
     
         7 . A binderless phosphor panel or screen according to  claim 3 , wherein said support further includes a protective auxiliary layer ( 21 ) between said reflective auxiliary layer and said phosphor layer.  
     
     
         8 . A binderless phosphor panel or screen according to  claim 4 , wherein said support further includes a protective auxiliary layer ( 21 ) between said reflective auxiliary layer and said phosphor layer.  
     
     
         9 . A binderless phosphor panel or screen according to  claim 5 , wherein said support further includes a protective auxiliary layer ( 21 ) between said reflective auxiliary layer and said phosphor layer.  
     
     
         10 . A binderless phosphor panel or screen according to  claim 6 , wherein said support further includes a protective auxiliary layer ( 21 ) between said reflective auxiliary layer and said phosphor layer.  
     
     
         11 . A binderless phosphor panel or screen according to  claim 7 , wherein said protective auxiliary layer is a layer of parylene wherein said parylene is selected from the group consisting of parylene C, parylene D and parylene HT.  
     
     
         12 . A binderless phosphor panel or screen according to  claim 8 , wherein said protective auxiliary layer is a layer of parylene wherein said parylene is selected from the group consisting of parylene C, parylene D and parylene HT.  
     
     
         13 . A binderless phosphor panel or screen according to  claim 9 , wherein said protective auxiliary layer is a layer of parylene wherein said parylene is selected from the group consisting of parylene C, parylene D and parylene HT.  
     
     
         14 . A binderless phosphor panel or screen according to  claim 10 , wherein said protective auxiliary layer is a layer of parylene wherein said parylene is selected from the group consisting of parylene C, parylene D and parylene HT.  
     
     
         15 . A binderless phosphor panel, or screen according to  claim 1 , wherein said phosphor layer comprises a needle shaped CsX:Eu phosphor, wherein X represents a halide selected from the group consisting of Br and Cl.  
     
     
         16 . A binderless phosphor panel or screen according to  claim 2 , wherein said phosphor layer comprises a needle shaped CsX:Eu phosphor, wherein X represents a halide selected from the group consisting of Br and Cl.  
     
     
         17 . A binderless phosphor panel or screen according to  claim 3 , wherein said phosphor layer comprises a needle shaped CsX:Eu phosphor, wherein X represents a halide selected from the group consisting of Br and Cl.  
     
     
         18 . A binderless phosphor panel or screen according to  claim 4 , wherein said phosphor layer comprises a needle shaped CsX:Eu phosphor, wherein X represents a halide selected from the group consisting of Br and Cl.  
     
     
         19 . A binderless phosphor panel or screen according to  claim 5 , wherein said phosphor layer comprises a needle shaped CsX:Eu phosphor, wherein X represents a halide selected from the group consisting of Br and Cl.  
     
     
         20 . A binderless phosphor panel or screen according to  claim 6 , wherein said phosphor layer comprises a needle shaped CsX:Eu phosphor, wherein X represents a halide selected from the group consisting of Br and Cl.  
     
     
         21 . A binderless phosphor panel or screen according to  claim 7 , wherein said phosphor layer comprises a needle shaped CsX:Eu phosphor, wherein X represents a halide selected from the group consisting of Br and Cl.  
     
     
         22 . A binderless phosphor panel or screen according to  claim 8 , wherein said phosphor layer comprises a needle shaped CsX:Eu phosphor, wherein X represents a halide selected from the group consisting of Br and Cl.  
     
     
         23 . A binderless phosphor panel or screen according to  claim 9 , wherein said phosphor layer comprises a needle shaped CsX:Eu phosphor, wherein X represents a halide selected from the group consisting of Br and Cl.  
     
     
         24 . A binderless phosphor panel or screen according to  claim 10 , wherein said phosphor layer comprises a needle shaped CsX:Eu phosphor, wherein X represents a halide selected from the group consisting of Br and Cl.  
     
     
         25 . A binderless phosphor panel or screen according to  claim 11 , wherein said phosphor layer comprises a needle shaped CsX:Eu phosphor, wherein X represents a halide selected from the group consisting of Br and Cl.  
     
     
         26 . A binderless phosphor panel or screen according to  claim 12 , wherein said phosphor layer comprises-a needle shaped CsX:Eu phosphor, wherein X represents a halide selected from the group consisting of Br and Cl.  
     
     
         27 . A binderless phosphor panel or screen according to  claim 13 , wherein said phosphor layer comprises a needle shaped CsX:Eu phosphor, wherein X represents a halide selected from the group consisting of Br and Cl.  
     
     
         28 . A binderless phosphor panel or screen according to  claim 14 , wherein said phosphor layer comprises a needle shaped CsX:Eu phosphor, wherein X represents a halide selected from the group consisting of Br and Cl.  
     
     
         29 . A method for producing a binderless storage phosphor panel comprising the steps of: 
 providing an amorphous carbon film,    vacuum depositing a storage phosphor layer on said amorphous carbon film and, optionally,    laminating a polymeric film on the side of the amorphous carbon film not covered by said phosphor.    
     
     
         30 . A method according to  claim 29 , wherein before said step of vacuum depositing a storage phosphor layer on said amorphous carbon film a step of applying a specularly reflecting layer on, said amorphous carbon film is included.  
     
     
         31 . Use in mammography of a screen or panel according to  claim 1 .  
     
     
         32 . Use in mammography of a screen or panel according to  claim 2 .  
     
     
         33 . Use in mammography of a screen or panel according to  claim 3 .  
     
     
         34 . Use in mammography of a screen or pane according to  claim 4 .  
     
     
         35 . Use in mammography of a screen or panel according to  claim 5 .  
     
     
         36 . Use in mammography of a screen or panel according to  claim 6 .  
     
     
         37 . Use in mammography of a screen or panel according to  claim 7 .  
     
     
         38 . Use in mammography of a screen or panel according to  claim 8 .  
     
     
         39 . Use in mammography of a screen or panel according to  claim 9 .  
     
     
         40 . Use in mammography of a screen or panel according to  claim 10 .  
     
     
         41 . Use in mammography of a screen or panel according to  claim 11 .  
     
     
         42 . Use in mammography of a screen or panel according to  claim 12 .  
     
     
         43 . Use in mammography of a screen or panel according to  claim 13 .  
     
     
         44 . Use in mammography of a screen or panel according to  claim 14 .  
     
     
         45 . Use in mammography of a screen or panel according to  claim 15 .  
     
     
         46 . Use in mammography of a screen or panel according to  claim 16 .  
     
     
         47 . Use in mammography of a screen or panel according to  claim 17 .  
     
     
         48 . Use in mammography of a screen or panel according to  claim 21 .  
     
     
         49 . Use in mammography of a screen or panel according to  claim 23 .  
     
     
         50 . Use in mammography of a screen or panel according to  claim 25 .  
     
     
         51 . Use in mammography of a screen or panel according to  claim 27.