Hierarchical Microstructures in CZT

Journal Article · Sat Oct 01 00:00:00 EDT 2011 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2010.09.128· OSTI ID:1030470

Sundaram, S K; Henager, Charles H; Edwards, Danny J; Schemer-Kohrn, Alan L; Bliss, Mary; Riley, Brian J; Toloczko, Mychailo B; Lynn, Kelvin G

Advanced characterization tools, such as electron backscatter diffraction and transmitted IR microscopy, are being applied to study critical microstructural features and orientation relations in as-grown CZT crystals to aid in understanding the relation between structure and properties in radiation detectors. Even carefully prepared single crystals of CZT contain regions of slight misorientation, Te-particles, and dislocation networks that must be understood for more accurate models of detector response. This paper describes initial research at PNNL into the hierarchy of microstructures observed in CZT grown via the vertical gradient freeze or vertical Bridgman method at PNNL and WSU.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1030470
• Report Number(s): PNNL-SA-73553; 25682; NN2001000; TRN: US1105961
• Journal Information: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 652, Issue 1
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BRIDGMAN METHOD
DIFFRACTION
DISLOCATIONS
ELECTRONS
MICROSCOPY
MONOCRYSTALS
ORIENTATION
RADIATION DETECTORS
Environmental Molecular Sciences Laboratory