Process for the production of bismuth germanate monocrystals wit

Details Process for the production of bismuth germanate monocrystals wit Process for the production of bismuth germanate monocrystals wit

1984-06-25

1987-05-12

Lacey, David L.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156DIG67, 156DIG79, 156DIG83, 156DIG89, 156617SP, C30B 2908

Patent

active

046647449

ABSTRACT:
Process for the production of bismuth germanate (BGO monocrystals) with a high scintillation response, based on the growth of a monocrystal from a molten bath in a crucible or container.
The container is made from iridium and the melting and growth are carried out under a neutral or weak oxidizing atmosphere. This process makes it possible to produce BGO monocrystals with a high scintillation response, of all random sizes, which are free from light diffusion centers and which can be used as high energy radiation detectors.

REFERENCES:
patent: 4056304 (1977-11-01), Phillips
patent: 4444728 (1984-04-01), Lanam et al.
Article entitled "Employment of Neutral Ambient Gas in Iridium Crucibles" by P. S. Yin, S. E. Blum, P. Chaudhari and D. F. O'Kane vol. 15, No. 5, Oct. 1972 of IBM Technical Disclosure Bulletin.
Institute of General and Inorganic Chemistry, Academy of Sciences of the USSR, Translated from Izvestiya Akademii Nauk SSSR, Neorganischeskie Materialy, vol. 3, No. 2, pp. 345-350, Feb. 1967, Original Article Submitted Dec. 25, 1965, Revision submitted Jun. 10, 1966.

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