发明公开
EP0552116A2 Phosphor composition and X-ray intensifying screen exhibiting peak emission in the ultraviolet
失效
Phosphorzusammensetzung und ultraviolette Spitzstrahlung aufweisenderRöntgenverstärkerschirm。
- 专利标题： Phosphor composition and X-ray intensifying screen exhibiting peak emission in the ultraviolet
- 专利标题（中）： Phosphorzusammensetzung und ultraviolette Spitzstrahlung aufweisenderRöntgenverstärkerschirm。
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申请号： EP93420012.2申请日： 1993-01-12
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公开(公告)号： EP0552116A2公开(公告)日： 1993-07-21
- 发明人: Lambert, Patrick Maddock, c/o Eastman Kodak Comp. , Jarrold, Gregory Scott, c/o Eastman Kodak Comp. , Towers, Chtistine May, c/o Eastman Kodak Comp. , Bryan, Philip Steven, c/o Eastman Kodak Comp.
- 申请人： EASTMAN KODAK COMPANY
- 申请人地址： 343 State Street Rochester, New York 14650-2201 US
- 专利权人： EASTMAN KODAK COMPANY
- 当前专利权人： EASTMAN KODAK COMPANY
- 当前专利权人地址： 343 State Street Rochester, New York 14650-2201 US
- 代理机构： Parent, Yves
- 优先权： US822387 19920117
- 主分类号： C09K11/67
- IPC分类号： C09K11/67 ; G21K4/00
摘要：
A phosphor composition is disclosed containing a titanium free hafnium zirconium germanate phosphor of a tetragonal scheelite crystal structure which emits electromagnetic radiation principally in the spectral region to which silver halide exhibits native sensitivity. To maximize the intensity of emission the ratio of host metals satisfies the relationship:
(Hf 1-z Zr z ) 1+x Ge 1-x
where
x is 0.15 to -0.10 and
z is at least 4 X 10⁻⁴ to less than 0.5.
An X-ray intensifying screen is disclosed containing the phosphor composition.
(Hf 1-z Zr z ) 1+x Ge 1-x
where
x is 0.15 to -0.10 and
z is at least 4 X 10⁻⁴ to less than 0.5.
An X-ray intensifying screen is disclosed containing the phosphor composition.
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