Compositions – Inorganic luminescent compositions – Compositions containing halogen; e.g. – halides and oxyhalides
Patent
1977-02-04
1978-09-26
Cooper, Jack
Compositions
Inorganic luminescent compositions
Compositions containing halogen; e.g., halides and oxyhalides
C09K 1146
Patent
active
041168658
ABSTRACT:
Thermoluminescent materials have been found suitable for measuring long term exposures to low level ionizing radiation. Oxyhalides of lanthanum, gadolinium and yttrium, including the oxychlorides and oxybromides are activated with terbium and have been found to be most efficient oxygen dominated phosphors having thermoradiant efficiencies with excitation by low level ionizing radiation. Thermoluminescence response increases when the previous materials have elemental hafnium and zirconium additives. The thermoluminescent oxyhalide of the invention is prepared by forming mixed oxalates of the metal constituents, firing the mixed oxalates in air to form an oxide mixture, blending the oxide mixture with an ammonium halide and firing the resultant mixture to form the oxyhalide.
REFERENCES:
patent: 3591516 (1971-07-01), Rabatin
patent: 3617743 (1971-11-01), Rabatin et al.
patent: 3666676 (1972-05-01), Rabatin et al.
Cooper Jack
General Electric Company
Kempton Lawrence R.
McDevitt John F.
Neuhauser Frank L.
LandOfFree
Method for preparing thermoluminescent materials utilizing rare does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for preparing thermoluminescent materials utilizing rare , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing thermoluminescent materials utilizing rare will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2087906