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Characterization of bismuth germanate crystals grown by EFG method
Author(s) -
Galenin Evgeny,
Baumer Vyacheslav,
Gerasymov Iaroslav,
Tkachenko Sergii,
Sidletskiy Oleg
Publication year - 2015
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201400237
Subject(s) - bismuth germanate , materials science , bismuth , scintillation , characterization (materials science) , crystal (programming language) , optics , crystal growth , rod , czochralski method , crystallography , optoelectronics , chemistry , doping , scintillator , nanotechnology , physics , metallurgy , medicine , alternative medicine , pathology , detector , computer science , programming language
Bismuth germanate shaped crystals have been grown by the EFG (Stepanov) method. The correlation between growth rate, shape of crystals, their optical and scintillation parameters has been analysed. Optical and scintillation characteristics of the EFG crystals are similar to those obtained with Czochralski grown crystals, however, growth rate in EFG is by 2.5 times larger. Also we compare the photochromic effect under UV‐irradiation in EFG and Czochralski grown crystals. Material losses at fabrication of plates, pixels, and rods from EFG shaped plates may be reduced by ∼50% compared to large diameter boules.