Cryogenic CMOS-based control system

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dc.contributor.authorVan Niekerk P.C.
dc.contributor.authorFourie C.J.
dc.date.accessioned2011-05-15T15:53:34Z
dc.date.available2011-05-15T15:53:34Z
dc.date.issued2007
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 USB connector on a computer at a data rate of 1 Megabaud. The interface to the superconductor electronics consists of 16-bit ultra low-noise ADCs and DACs. 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. ©2007 IEEE.
dc.description.versionConference Paper
dc.identifier.citationIEEE AFRICON Conference
dc.identifier.other10.1109/AFRCON.2007.4401493
dc.identifier.urihttp://hdl.handle.net/10019.1/8677
dc.titleCryogenic CMOS-based control system
dc.typeConference Paper
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