Growth and Spectrometric Tests on Bi4Ge3O12 Crystals

✍ Scribed by Drd. I. Dafinei; Gh. Mitroaica; T. Angelescu; I. Niculescu

• Publisher: John Wiley and Sons
• Year: 1992
• Tongue: English
• Weight: 273 KB
• Volume: 27
• Category: Article
• ISSN: 0232-1300
• DOI: 10.1002/crat.2170270702

✦ Synopsis

Growth and Spectrometric Tests on Bi,Ge,O,, Crystals

A resistance-heated furnace with a good control of temperature gradients is used for the Czochralski growth of precipitate and colour free Bi,Ge,O,, (BGO) crystals up to 30 mm in diameter and 80 mm in lcngth from a 45 mm diameter crucible. The quality of the grown crystals is discussed in connection with the growth conditions.

Spectrometric tests made on scintillators obtained from BGO crystals are presented. A Monte Carlo program is used in order to compute the full energy peak efficiency of the detector for different energies and geometries. The computed values are compared to the experimental re-SUllS.