Compositions – Inorganic luminescent compositions – Compositions containing halogen; e.g. – halides and oxyhalides
Patent
1991-07-19
1992-05-12
Cooper, Jack
Compositions
Inorganic luminescent compositions
Compositions containing halogen; e.g., halides and oxyhalides
C09K 1178
Patent
active
051125242
ABSTRACT:
An unactivated yttrium tantalate phosphor, M'YTaO.sub.4, contains one or more additives of Sr, Rb and Al in order to improve brightness under X-radiation.
REFERENCES:
patent: 4959174 (1990-09-01), Nakajima et al.
patent: 4970024 (1990-11-01), Reddy
Cheung Ha K.
Reddy Vaddi B.
Cooper Jack
GTE Products Corporation
Theodosopoulos James
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