Binderless storage phosphor screen
View Patent ↗An image storage screen or panel, suitable for use in applications related with computed radiography has a binderless needle-shaped stimulable (storage) CsBr:Eu phosphor and a substrate, wherein the substrate has a surface roughness of less than 2 μm and a reflectivity of more than 80%.
1. Image storage screen or panel comprising a binderless needle-shaped stimulable phosphor of CsBr:Eu, wherein amounts of Eu-dopant are in the range of from 100 up to 400 p.p.m. versus CsBr, and a substrate, and wherein said substrate has a surface roughness of less than 2 μm and a reflectivity of more than 80%.
2. Image storage screen or panel according to claim 1 , wherein said binderless needle-shaped stimulable phosphor has from 100 up to 200 p.p.m. of Eu-dopant versus CsBr.
3. Screen or panel according to claim 1 , wherein said reflectivity is at least 90%.
4. Screen or panel according to claim 2 , wherein said reflectivity is at least 90%.
5. Screen or panel according to claim 1 , wherein said reflectivity is at least 95%.
6. Screen or panel according to claim 2 , wherein said reflectivity is at least 95%.
7. Screen or panel according to claim 1 , wherein said substrate has a surface roughness of less than 1 μm.
8. Screen or panel according to claim 2 , wherein said substrate has a surface roughness of less than 1 μm.
9. Screen or panel according to claim 3 , wherein said substrate has a surface roughness of less than 1 μm.
10. Screen or panel according to claim 4 , wherein said substrate has a surface roughness of less than 1 μm.
11. Screen or panel according to claim 5 , wherein said substrate has a surface roughness of less than 1 μm.
12. Screen or panel according to claim 6 , wherein said substrate has a surface roughness of less than 1 μm.
13. Screen or panel according to claim 1 , wherein said substrate is an amorphous carbon layer, overcoated with a reflecting layer.
14. Screen or panel according to claim 2 , wherein said substrate is an amorphous carbon layer, overcoated with a reflecting layer.
15. Screen or panel according to claim 3 , wherein said substrate is an amorphous carbon layer, overcoated with a reflecting layer.
16. Screen or panel according to claim 4 , wherein said substrate is an amorphous carbon layer, overcoated with a reflecting layer.
17. Screen or panel according to claim 5 , wherein said substrate is an amorphous carbon layer, overcoated with a reflecting layer.
18. Screen or panel according to claim 6 , wherein said substrate is an amorphous carbon layer, overcoated with a reflecting layer.
19. Screen or panel according to claim 7 , wherein said substrate is an amorphous carbon layer, overcoated with a reflecting layer.
20. Screen or panel according to claim 8 , wherein said substrate is an amorphous carbon layer, overcoated with a reflecting layer.
21. Screen or panel according to claim 9 , wherein said substrate is an amorphous carbon layer, overcoated with a reflecting layer.
22. Screen or panel according to claim 10 , wherein said substrate is an amorphous carbon layer, overcoated with a reflecting layer.
23. Screen or panel according to claim 11 , wherein said substrate is an amorphous carbon layer, overcoated with a reflecting layer.
24. Screen or panel according to claim 12 , wherein said substrate is an amorphous carbon layer, overcoated with a reflecting layer.
25. Screen or panel according to claim 13 , wherein said reflecting layer is a metal layer.
26. Screen or panel according to claim 14 , wherein said reflecting layer is a metal layer.
27. Screen or panel according to claim 13 , wherein said reflecting layer is an aluminum layer.
28. Screen or panel according to claim 14 , wherein said reflecting layer is an aluminum layer.
29. A system for computed radiography comprising an image screen or panel of claim 1 .
30. A system for computed radiography comprising an image screen or panel of claim 2 .
31. A system for computed radiography comprising an image screen or panel of claim 3 .
32. A system for computed radiography comprising an image screen or panel of claim 4 .
33. A system for computed radiography comprising an image screen or panel of claim 5 .
34. A system for computed radiography comprising an image screen or panel of claim 6 .
35. A system for computed radiography comprising an image screen or panel of claim 7 .
36. A system for computed radiography comprising an image screen or panel of claim 8 .
37. A system for computed radiography comprising an image screen or panel of claim 9 .
38. A system for computed radiography comprising an image screen or panel of claim 10 .
39. A system for computed radiography comprising an image screen or panel of claim 11 .
40. A system for computed radiography comprising an image screen or panel of claim 12 .
41. A system for computed radiography comprising an image screen or panel of claim 13 .
42. A system for computed radiography comprising an image screen or panel of claim 14 .
43. A system for computed radiography comprising an image screen or panel of claim 15 .
44. A system for computed radiography comprising an image screen or panel of claim 16 .
45. A system for computed radiography comprising an image screen or panel of claim 17 .
46. A system for computed radiography comprising an image screen or panel of claim 18 .
47. A system for computed radiography comprising an image screen or panel of claim 19 .
48. A system for computed radiography comprising an image screen or panel of claim 20 .
49. A system for computed radiography comprising an image screen or panel of claim 21 .
50. A system for computed radiography comprising an image screen or panel of claim 22 .
51. A system, for computed radiography comprising an image screen or panel of claim 23 .
52. A system for computed radiography comprising an image screen or panel of claim 24 .
53. A mammographic system comprising the system for computed radiography of claim 29 .
54. A mammographic system comprising the system for computed radiography of claim 30 .
55. A mammographic system comprising the system for computed radiography of claim 31 .
56. A mammographic system comprising the system for computed radiography of claim 32 .
57. A process for obtaining an image comprising:
exposing said image screen or panel of claim 1 with image radiation attenuated by an object or emitted by an object;
storing said image radiation as stored radiation on said image screen or panel;
exposing said image screen or panel to stimulating rays to release said stored radiation as light;
collecting said light;
converting said light into electrical signals; and
producing an image from said electrical signals wherein said image corresponds to said image radiation.