6 Matching Results
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High-temperature treatment of In-doped CZT crystals grown by the high-pressure Bridgman method
We evaluated the effect of high-temperature treatment of Cd0.9Zn0.1Te:In single crystals using Hall-effect measurements, medium- and high-temperature annealing under various deviations from stoichiometry, and infra-red (IR) transmission microscopy Annealing at ~730 K sharply increased the electrical conductivity (by ~1-2 orders-of-magnitude). Plots of the temperature- and cadmium-pressure dependences of the electrical conductivity, carrier concentration, and mobility were obtained. Treating previously annealed Cd-samples under a Te overpressure at 1070 K allowed us to restore their resistance to its initial high values. The main difference in comparing this material with CdTe was its lowered electron density. We explained our results within the framework of Kröger’s theory of quasi-chemical reactions between point defects in solids.
Date:
August 12, 2012
Creator:
Bolotnikov, A.; Fochuk, P.; Nakonechnyi, I.; Kopach, O.; Verzhak, Ye.; Panchuk, O. et al.
System:
The UNT Digital Library
Counterintuitive MCNPX Results for Scintillator Surface Roughness Effect
We have reported on our recent MCNPX simulation results of energy deposition for a group of 8 scintillation detectors, coupled with various rough surface patterns. The MCNPX results generally favored the detectors with various rough surface patterns. The observed MCNPX results are not fully explained by this work.
Date:
August 12, 2012
Creator:
unknown
System:
The UNT Digital Library
Registration of high-intensity electron and X-ray fields with polycrystalline CVD diamond detectors
N/A
Date:
August 12, 2012
Creator:
Bolotnikov, A.; Davydov, L. N.; Rybka, A. V.; Vierovkin, A. A.; Dudnik, S. F.; Gritsyna, V. I. et al.
System:
The UNT Digital Library
Transport properties and spectrometric performances of CdZnTe gamma-ray detectors
N/A
Date:
August 12, 2012
Creator:
Bolotnikov, A.; Zakharchenko, A. A.; Rybka, A. V.; Kutny, V. E.; Skrypnyk, A. I.; Khazhmuradov, M. A. et al.
System:
The UNT Digital Library
Structural- and optical-properties of CdTe and CdMnTe films
N/A
Date:
August 12, 2012
Creator:
Bolotnikov, A.; Opanasyuk, A. S.; Koval, P. V.; Kosyak, V. V.; Fochuk, P. M. & James, R. B.
System:
The UNT Digital Library
Growth of CZT using additionally zone-refined raw materials
N/A
Date:
August 12, 2012
Creator:
A., Bolotnikov; James, Ralph; Knuteson, David J.; Berghmans, Andre; Kahler, David; Wagner, Brian et al.
System:
The UNT Digital Library