SYSTEM AND METHOD FOR REMOVING HEAT GENERATED BY A HEATSINK OF MAGNETIC RESONANCE IMAGING SYSTEM

Heat generated by a heat sink, such as a coldhead, of a magnetic resonance imaging (MRI) system 20 is removed by a cooling system using exhaust helium gas from a helium vessel of the superconducting magnet. A coldhead sleeve 30 receives a coldhead 28 of the MRI system and a cooling system 40 surroun...

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Bibliographische Detailangaben
Hauptverfasser:	JOHN SCATURRO JR, LONGZHI JIANG, WILLIAM LOUIS EINZIGER, JALAL ZIA
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING COLD ROOMS COMBINED HEATING AND REFRIGERATION SYSTEMS COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS ELECTRICITY FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES FIXED-CAPACITY GAS-HOLDERS HEAT PUMP SYSTEMS HEATING ICE-BOXES INDUCTANCES LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MAGNETS MANUFACTURE OR STORAGE OF ICE MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MECHANICAL ENGINEERING PHYSICS REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING REFRIGERATORS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES STORING OF DISTRIBUTING GASES OR LIQUIDS TESTING TRANSFORMERS VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES WEAPONS
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Beschreibung
Zusammenfassung:	Heat generated by a heat sink, such as a coldhead, of a magnetic resonance imaging (MRI) system 20 is removed by a cooling system using exhaust helium gas from a helium vessel of the superconducting magnet. A coldhead sleeve 30 receives a coldhead 28 of the MRI system and a cooling system 40 surrounds an outer surface of the coldhead sleeve. The cooling system 40 consists of a cooling tube that uses helium gas obtained via gas passageway 38 from the helium vessel 22 of the MRI magnet 34 to remove heat from the coldhead sleeve 30. When the coldhead 28 is not operational, for example during power down or failure of the coldhead, the cooling system 40 cools the coldhead sleeve using boiled off helium from the magnet vessel 22 and reduces heat flow into the thermal shield 26 and magnet vessel 22 of the MRI system.