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Bismuth Germanate Bi4Ge3O12 (BGO) crystals are scintillation material widely used in high energy physics, nuclear physics, PET and many other fields.
Crystal Growth Lab of the Institute produces large size BGO crystal parts for years. The BGO crystals are grown by the original Low Thermal Gradient Czochralski technique, which was developed in the Institute for growth of nearly perfect oxide crystals.
Ultra-High Purity bismuth oxide produced in the NIIC is used for crystal growth. Control of all stages of bismuth oxide synthesize provides reproducible high radiation hardness of crystal, which depends on the presence of sub ppm impurities.
The advantages of BGO produced by the NIIC are as follows:
|Ingot sizes:||up to 130 mm in diameter and up to 450 mm in length|
|Energy resolution:||FWHM ~9.0—9.8% at 662 keV γ-rays for 2'' dia. × 6'' height BGO cylinders|
|Transmission properties:||The attenuation length about 7—15 m at λ=480 nm for top quality material|
|Radiation hardness:||BGO with light output degradation not more then 15—30% under gamma 106 rad dose is available|
Nikolaev Institute of Inorganic Chemistry SB RAS
Acad. Lavrentyev ave., 3, Novosibirsk, Russia, 630090
Scientific secretary of Institute
Gerasko Olga Anatolievna, Doctor of chemical sciences
Phone: +7(383) 330-94-86