CdTe and CdZnTe Crystal Growth and Production of Gamma Detectors
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Scan day: 03 February 2014 UTC
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Description: Semiconductor gamma radiation detectors prepared from Bridgman growth crystals.
CdTe and CdZnTe Crystal Growth and Production of Gamma Radiation Detectors CdTe and CdZnTe Crystal Growth and Production of Gamma Radiation Detectors science, P.O. Box 2104, Rehovot 76120, Israel Bridgman CdTe and CdZnTe crystal growth, with cadmium vapor pressure control, is applied to production of semiconductor gamma radiation detectors. Crystals are highly donor doped and highly electrically conducting. Annealing in tellurium vapors transforms them into a highly compensated state of high electrical resistance and high sensitivity to gamma radiation. N-type detectors, equipped with ohmic contacts, and a grounded guard ring around the positive contact, are not sensitive to hole trapping. Conductivity control, by the doping level, optimizes the detector operation by trade-off between electrons' lifetime and electrical resistance. Gamma spectra of single detectors and detector arrays are presented. Detector optimization and gamma detection mechanisms are discussed.
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WEBSITE Info
| Page title: | CdTe and CdZnTe Crystal Growth and Production of Gamma Radiation Detectors |
| Keywords: | crystal, cdznte, cdte, growth, detector, radiation, gamma, cadmium, telluride, temperature, Bridgman, semiconductor, THM, HPB, tellurium , indium, zinc, zanio, horizontal, substrate, czt, x-ray, pixel, lachish |
| Description: | Semiconductor fast response detectors and arrays are fabricated from crystals that grow by the Bridgman method. |
| IP-address: | 209.202.252.50 |
WHOIS Info
| NS | Name Server: NS1.LYCOS.COM Name Server: NS2.LYCOS.COM Name Server: NS3.LYCOS.COM Name Server: NS4.LYCOS.COM |
| WHOIS | Status: clientTransferProhibited |
| Date | Creation Date: 29-sep-1994 Expiration Date: 28-sep-2014 |