The micro-pulling-down growth of Bi4Si3O12(BSO) and Bi4Ge3O12 (BGO) fiber crystals and their scintillation efficiency

The micro-pulling-down growth and characterization of Bi4Si3O12 and Bi4Ge3O12 fiber crystals for scintillation applications are reported. The diameter of the crystals varied from 0.1 to 1.0 mm. The results demonstrate that this technology is suitable for development of miniature imaging sensors part...

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Veröffentlicht in:	Journal of crystal growth 2008-04, Vol.310 (7-9), p.2152-2156
Hauptverfasser:	ZHURAVLEVA, Mariya, CHANI, Valery I, YANAGIDA, Takayuki, YOSHIKAWA, Akira
Format:	Artikel
Sprache:	eng
Schlagworte:	Cross-disciplinary physics: materials science rheology Exact sciences and technology Growth from melts zone melting and refining Materials science Methods of crystal growth physics of crystal growth Physics Theory and models of crystal growth physics of crystal growth, crystal morphology and orientation
Online-Zugang:	Volltext
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Zusammenfassung:	The micro-pulling-down growth and characterization of Bi4Si3O12 and Bi4Ge3O12 fiber crystals for scintillation applications are reported. The diameter of the crystals varied from 0.1 to 1.0 mm. The results demonstrate that this technology is suitable for development of miniature imaging sensors particularly for the application in Positron Emission Tomography. The crystals were produced from the crucibles that had different shapes of the die: conventional tubular one and that made of two parallel plates with the melt sited between the plates (double-plate die). The quality of the crystals is discussed based on backscattered electron imaging results. Basic scintillation performance was tested in order to evaluate the scintillation efficiency of BGO and BSO fiber crystals coupled to a photomultiplier tube.
ISSN:	0022-0248 1873-5002
DOI:	10.1016/j.jcrysgro.2007.11.177