Pulse tube cryocooler system for magnetic resonance superconducting magnets
A magnetic resonance assembly (20) comprising, a liquid cryogen vessel (24), a liquid cryogen cooled superconducting magnet (22) disposed within the liquid cryogen vessel (24), a closed vacuum vessel (28) surrounding the liquid cryogen vessel (24) and spaced from the liquid cryogen vessel (24), a co...
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| creator | LEHMANN, GREOGORY A MANGANO, ROY A MCGUINNESS, KATHLEEN W GINFRIDA, CLIFFORD J |
| description | A magnetic resonance assembly (20) comprising, a liquid cryogen vessel (24), a liquid cryogen cooled superconducting magnet (22) disposed within the liquid cryogen vessel (24), a closed vacuum vessel (28) surrounding the liquid cryogen vessel (24) and spaced from the liquid cryogen vessel (24), a cooling device (30) fixably attached to the vacuum vessel (28) operable for providing cryogenic temperatures to the superconducting magnet (22), a heat exchanger device (34) in thermal contact with the liquid cryogen vessel (24) operable for heat exchange, and a bus bar (32) in thermal contact with the cooling device (30) and the heat exchanger device (34). The cooling device (30) may be a pulse tube cryocooler capable of providing temperatures of about 4 deg K. A thermal bus bar (32) of high purity aluminum or copper is used to connect and provide a spatial separation of a pulse tube cryocooler (30) and a remote recondensor unit (34), thus reducing the overall height of the magnet assembly (20). |
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The cooling device (30) may be a pulse tube cryocooler capable of providing temperatures of about 4 deg K. A thermal bus bar (32) of high purity aluminum or copper is used to connect and provide a spatial separation of a pulse tube cryocooler (30) and a remote recondensor unit (34), thus reducing the overall height of the magnet assembly (20).</description><edition>7</edition><language>eng ; fre ; ger</language><subject>BLASTING ; COLD ROOMS ; COMBINED HEATING AND REFRIGERATION SYSTEMS ; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS ; DIAGNOSIS ; HEAT PUMP SYSTEMS ; HEATING ; HUMAN NECESSITIES ; HYGIENE ; ICE-BOXES ; IDENTIFICATION ; LIGHTING ; LIQUEFACTION SOLIDIFICATION OF GASES ; MANUFACTURE OR STORAGE OF ICE ; MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; MECHANICAL ENGINEERING ; MEDICAL OR VETERINARY SCIENCE ; PHYSICS ; REFRIGERATION MACHINES, PLANTS OR SYSTEMS ; REFRIGERATION OR COOLING ; REFRIGERATORS ; SURGERY ; TESTING ; WEAPONS</subject><creationdate>2005</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20050525&DB=EPODOC&CC=EP&NR=1460444A3$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20050525&DB=EPODOC&CC=EP&NR=1460444A3$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LEHMANN, GREOGORY A</creatorcontrib><creatorcontrib>MANGANO, ROY A</creatorcontrib><creatorcontrib>MCGUINNESS, KATHLEEN W</creatorcontrib><creatorcontrib>GINFRIDA, CLIFFORD J</creatorcontrib><title>Pulse tube cryocooler system for magnetic resonance superconducting magnets</title><description>A magnetic resonance assembly (20) comprising, a liquid cryogen vessel (24), a liquid cryogen cooled superconducting magnet (22) disposed within the liquid cryogen vessel (24), a closed vacuum vessel (28) surrounding the liquid cryogen vessel (24) and spaced from the liquid cryogen vessel (24), a cooling device (30) fixably attached to the vacuum vessel (28) operable for providing cryogenic temperatures to the superconducting magnet (22), a heat exchanger device (34) in thermal contact with the liquid cryogen vessel (24) operable for heat exchange, and a bus bar (32) in thermal contact with the cooling device (30) and the heat exchanger device (34). The cooling device (30) may be a pulse tube cryocooler capable of providing temperatures of about 4 deg K. 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The cooling device (30) may be a pulse tube cryocooler capable of providing temperatures of about 4 deg K. A thermal bus bar (32) of high purity aluminum or copper is used to connect and provide a spatial separation of a pulse tube cryocooler (30) and a remote recondensor unit (34), thus reducing the overall height of the magnet assembly (20).</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | BLASTING COLD ROOMS COMBINED HEATING AND REFRIGERATION SYSTEMS COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS DIAGNOSIS HEAT PUMP SYSTEMS HEATING HUMAN NECESSITIES HYGIENE ICE-BOXES IDENTIFICATION LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MECHANICAL ENGINEERING MEDICAL OR VETERINARY SCIENCE PHYSICS REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING REFRIGERATORS SURGERY TESTING WEAPONS |
| title | Pulse tube cryocooler system for magnetic resonance superconducting magnets |
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