About: Automatic Control System for the High Pressure CdTe Crystal Growth Furnace

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Automatický řídící systém pro pěstování krystalů CdTe za vysokých tlaků (cs) CdTe and (CdZn)Te bulk single crystals have been widely used as substrates for MBE and LPE epitaxy of infrared (HgCd)Te as well as gamma- and X-ray detectors. The Cd1-xZnxTe (x = 0.04-0.1) single crystals with diameter up to 100 mm and height at most 40 mm were prepared in our laboratory in a vertical arrangement by gradual cooling of the melt (the Vertical Gradient Freezing method). Achievement of excellent crystal quality required full control of Cd pressure during the growth process and application of high Cd pressures (up to 4 bar) at growth temperature. An electronic control system was designed to control both temperature and internal pressure of two zones CZT crystal growth furnace by using two high performance PID controllers/setpoint programmers. Two wire current loop serial communication bus was used for the data exchange and computer control of the furnace electronics setup. Control software was written to supervise the crystal growth process and to collect all important data and parameters. CdTe and (CdZn)Te bulk single crystals have been widely used as substrates for MBE and LPE epitaxy of infrared (HgCd)Te as well as gamma- and X-ray detectors. The Cd1-xZnxTe (x = 0.04-0.1) single crystals with diameter up to 100 mm and height at most 40 mm were prepared in our laboratory in a vertical arrangement by gradual cooling of the melt (the Vertical Gradient Freezing method). Achievement of excellent crystal quality required full control of Cd pressure during the growth process and application of high Cd pressures (up to 4 bar) at growth temperature. An electronic control system was designed to control both temperature and internal pressure of two zones CZT crystal growth furnace by using two high performance PID controllers/setpoint programmers. Two wire current loop serial communication bus was used for the data exchange and computer control of the furnace electronics setup. Control software was written to supervise the crystal growth process and to collect all important data and parameters. (en)
Title	Automatic Control System for the High Pressure CdTe Crystal Growth Furnace Automatický řídící systém pro pěstování krystalů CdTe za vysokých tlaků (cs) Automatic Control System for the High Pressure CdTe Crystal Growth Furnace (en)
skos:prefLabel	Automatic Control System for the High Pressure CdTe Crystal Growth Furnace Automatický řídící systém pro pěstování krystalů CdTe za vysokých tlaků (cs) Automatic Control System for the High Pressure CdTe Crystal Growth Furnace (en)
skos:notation	RIV/00216208:11320/06:00002524!RIV07-MSM-11320___
http://linked.open.../vavai/riv/strany	1;6
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Praus, Petr Belas, Eduard Höschl, Pavel Franc, Jan Fesh, Roman Bok, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	466395
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/06:00002524
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Automatic; Control; System; Pressure; Crystal; Growth; Furnace (en)
http://linked.open.../riv/klicoveSlovo	Automatic System Control Furnace Crystal Growth Pressure
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[357B3C70C890]
http://linked.open...i/riv/nazevZdroje	Journal of Systemics, Cybernetics and Informatics
http://linked.open...in/vavai/riv/obor	JB
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	Vol.4
http://linked.open...iv/tvurceVysledku	Belas, Eduard Franc, Jan Höschl, Pavel Praus, Petr Fesh, Roman Bok, Jiří
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
issn	1690-4524
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	11320

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