C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 11/67 (2006.01) C09K 11/66 (2006.01) G21K 4/00 (2006.01)
Patent
CA 2085927
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: (Hf1-zZrz)1+xGe1-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.
Bryan Philip Steven
Jarrold Gregory Scott
Lambert Patrick Maddock
Towers Christine May
Eastman Kodak Company
Gowling Lafleur Henderson Llp
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