System, method and apparatus for controlling drift of a main magnetic field in an MRI system

An apparatus (300) for controlling the temperature of a warm bore of a superconducting magnet in a magnetic resonance imaging (MRI) includes a plurality of warm bore thermal sensors (320) positioned on a surface of the warm bore and a plurality of heater elements (324) positioned on the surface of t...

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Bibliographische Detailangaben
1. Verfasser:	DUBY TOMAS
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CONTROLLING DIAGNOSIS ELECTRICITY HUMAN NECESSITIES HYGIENE IDENTIFICATION INDUCTANCES MAGNETS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEDICAL OR VETERINARY SCIENCE PHYSICS REGULATING SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SURGERY SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TESTING TRANSFORMERS
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Beschreibung
Zusammenfassung:	An apparatus (300) for controlling the temperature of a warm bore of a superconducting magnet in a magnetic resonance imaging (MRI) includes a plurality of warm bore thermal sensors (320) positioned on a surface of the warm bore and a plurality of heater elements (324) positioned on the surface of the warm bore. A heater element thermal sensor (326) is coupled to each of the plurality of heater elements (324) and configured to monitor the temperature of the corresponding heater element (324). A controller (322) is coupled to the plurality of warm bore thermal sensors (320) and the plurality of heater element thermal sensors (326). The controller (322) is configured to control each of the plurality of heater elements (324) to maintain a predetermined temperature of the warm bore.