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To better identify the influence of light anion impurities on the scintillation performance, small boules of SrI2(Eu) were grown by the vertical Bridgman-Stockbarger method, each co-doped with 0.2% of one of the following: C0, CO32−, N3−, O2−, OH−, PO43−, S2−, SO42−, Cl− and Br−. Residual impurity concentrations were measured, and the scintillation performance of resulting detectors was characterized...
Reducing the amount of secondary phases in as grown Cd1-xZnxTe material is one of the biggest challenges in modern crystal growth industry. Results of the post processing experiments as well as its short comes would be described in this paper. Consequences of various experiments performed to decrease the amount of secondary phases by changing the initial charge compositions and the growth parameters...
Achieving a high yield of detector grade CdZnTe single crystals is one of the greatest challenges in CdZnTe crystal growth. Over 85, 3.5-4 inch long CdZnTe crystals were grown in a 43 zone modified low pressure Vertical Bridgman Electro-Dynamic Gradient (EDG) Freeze 3 in. Mellen Sunfire furnace. The diameter of the grown ingots has been increased using a new Electro-Dynamic Gradient (EDG) Freeze 4...
CdZnTe (10% Zn) crystals for nuclear radiation detectors were grown using modified vertical Bridgman growth technique. Analyses of the effects of impurities and secondary phases on the detector properties were performed. We have attempted to establish a correlation between total impurities and ????e. Also presented are the effects of volume % of secondary phases on the CdZnTe detector performance...
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