Cryogenic CMOS-based control system for superconductor electronics

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dc.contributor.authorVan Niekerk P.C.
dc.contributor.authorFourie C.J.
dc.date.accessioned2011-05-15T16:00:40Z
dc.date.available2011-05-15T16:00:40Z
dc.date.issued2008
dc.description.abstractThis article describes the design and evaluation of a CMOS-based control system for use in Cryogenic vacuum environments. A control system, with accompanying software, was designed to interface superconductive digital and sensor circuits in a cryocooler to portable computers at room temperature. It is designed to operate as close as possible to the superconductors to reduce thermal noise. The controller connects via a fibre optical RS-232 interface to any Universal Serial Bus connector on a computer at a data rate of 1 Megabaud. The interface to the superconductor electronics consists of 16-bit ultra low-noise analogue to digital converters and digital to analogue converters. Extensive research and testing was done on all components - both active and passive - to validate operation at 60 K. An integrated temperature control system was designed to ensure a stable temperature environment. Results are shown and discussed.
dc.description.versionArticle
dc.identifier.citationTransactions of the South African Institute of Electrical Engineers
dc.identifier.citation99
dc.identifier.citation2
dc.identifier.issn382221
dc.identifier.urihttp://hdl.handle.net/10019.1/11821
dc.subjectAnalogue to digital converters
dc.subjectCMOS-based
dc.subjectCMOS-based control system
dc.subjectCryocoolers
dc.subjectCryogenic vacuum
dc.subjectData rates
dc.subjectDigital to analogue converters
dc.subjectLow noise
dc.subjectPortable computers
dc.subjectRoom temperature
dc.subjectSensor circuit
dc.subjectSuperconductor electronics
dc.subjectUniversal Serial Bus
dc.subjectControl theory
dc.subjectCryogenic equipment
dc.subjectCryogenics
dc.subjectDigital circuits
dc.subjectMicrocomputers
dc.subjectSuperconducting materials
dc.subjectSuperconductivity
dc.subjectInterfaces (computer)
dc.titleCryogenic CMOS-based control system for superconductor electronics
dc.typeArticle
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