Compositions – Inorganic luminescent compositions – Group iv element containing
Patent
1990-06-27
1991-02-12
Cooper, Jack
Compositions
Inorganic luminescent compositions
Group iv element containing
C09K 1167
Patent
active
049922050
ABSTRACT:
An intensifying screen is disclosed containing a phosphor composition comprised of monoclinic crystals of a titanium activated hafnia phosphor host containing indium ions or indium ions in combination with neodymium ions. Indium increases speed while reducing afterglow while the further addition of neodymium allows afterglow to be eliminated. A phosphor composition in which zirconia is at least partially substituted for hafnia is also disclosed.
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Bryan Philip S.
Jarrold Gregory S.
Lambert Patrick M.
Towers Christine M.
Cooper Jack
Eastman Kodak Company
Thomas Carl O.
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