GB2331798A - Liquified gas cryostat - Google Patents

Liquified gas cryostat

Info

Publication number
GB2331798A
GB2331798A GB9903405A GB9903405A GB2331798A GB 2331798 A GB2331798 A GB 2331798A GB 9903405 A GB9903405 A GB 9903405A GB 9903405 A GB9903405 A GB 9903405A GB 2331798 A GB2331798 A GB 2331798A
Authority
GB
United Kingdom
Prior art keywords
cooled
liquified gas
cryo
vapour
space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9903405A
Other versions
GB9903405D0 (en
GB2331798B (en
Inventor
Hugh Charles Seton
James Macdonald Stra Hutchison
David Malcolm Bussell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Aberdeen
Original Assignee
University of Aberdeen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Aberdeen filed Critical University of Aberdeen
Priority to GB0024209A priority Critical patent/GB2351549B/en
Publication of GB9903405D0 publication Critical patent/GB9903405D0/en
Publication of GB2331798A publication Critical patent/GB2331798A/en
Application granted granted Critical
Publication of GB2331798B publication Critical patent/GB2331798B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/08—Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
    • F17C3/085—Cryostats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • F17C2221/017—Helium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use
    • F17C2270/0527—Superconductors
    • F17C2270/0536—Magnetic resonance imaging

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)

Abstract

A liquified gas cryostat having an inner wall (3) to contain the liquified gas (4) and an other wall (2) spaced therefrom is provided, in the space between the two walls, with multilayered insulation (5), formed by coating a woven fabric with a thin layer of gold or aluminium to create small, self-defined areas of metallization, and the space is evacuated. Also in the space is located at least one radiation shield (6) of material which exbibits high thermal conductivity and negligible electrical conductivity. The shield (6) extends beneath and is continuous around the inner wall (3) over the volume intended to be occupied by the liquified gas and may be vapour-cooled or cryo-cooled. Where more than one shield is used, both or all of them may, be vapour-cooled or cryo-cooled. Alternatively, one or more of the shields may be vapour-cooled and the remainder cryo-cooled.
GB9903405A 1996-08-15 1997-08-11 Liquified gas cryostat Expired - Fee Related GB2331798B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0024209A GB2351549B (en) 1996-08-15 1997-08-11 Liquified gas cryostat

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9617175A GB9617175D0 (en) 1996-08-15 1996-08-15 Liquid gas cryostat
PCT/GB1997/002140 WO1998006972A1 (en) 1996-08-15 1997-08-11 Liquified gas cryostat

Publications (3)

Publication Number Publication Date
GB9903405D0 GB9903405D0 (en) 1999-04-07
GB2331798A true GB2331798A (en) 1999-06-02
GB2331798B GB2331798B (en) 2000-12-20

Family

ID=10798537

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9617175A Pending GB9617175D0 (en) 1996-08-15 1996-08-15 Liquid gas cryostat
GB9903405A Expired - Fee Related GB2331798B (en) 1996-08-15 1997-08-11 Liquified gas cryostat

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9617175A Pending GB9617175D0 (en) 1996-08-15 1996-08-15 Liquid gas cryostat

Country Status (3)

Country Link
AU (1) AU3856997A (en)
GB (2) GB9617175D0 (en)
WO (1) WO1998006972A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005080858A1 (en) * 2004-02-16 2005-09-01 Aberdeen University Liquified gas cryostat
GB2414539A (en) * 2004-05-25 2005-11-30 Siemens Magnet Technology Ltd An electrically conductive shield for a refrigerator
US7466132B2 (en) 2002-02-06 2008-12-16 The Regents Of The University Of California Squid detected NMR and MRI at ultralow fields

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008019091A1 (en) 2008-04-16 2009-10-29 Bmdsys Gmbh Cryostat and biomagnetic measuring system with high frequency shielding

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1400921A1 (en) * 1962-07-20 1969-01-30 Union Carbide Corp Thermal insulation
FR2345658A1 (en) * 1976-03-25 1977-10-21 Air Liquide CRYOGENIC LIQUID TANK
FR2530382A1 (en) * 1982-07-16 1984-01-20 Thomson Csf LOW DIMENSION CRYOSTATIC DEVICE FOR PHOTODETECTORS
WO1994003754A1 (en) * 1992-07-30 1994-02-17 Biomagnetic Technologies, Inc. Cryogenic dewar and method of fabrication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1400921A1 (en) * 1962-07-20 1969-01-30 Union Carbide Corp Thermal insulation
FR2345658A1 (en) * 1976-03-25 1977-10-21 Air Liquide CRYOGENIC LIQUID TANK
FR2530382A1 (en) * 1982-07-16 1984-01-20 Thomson Csf LOW DIMENSION CRYOSTATIC DEVICE FOR PHOTODETECTORS
WO1994003754A1 (en) * 1992-07-30 1994-02-17 Biomagnetic Technologies, Inc. Cryogenic dewar and method of fabrication

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7466132B2 (en) 2002-02-06 2008-12-16 The Regents Of The University Of California Squid detected NMR and MRI at ultralow fields
WO2005080858A1 (en) * 2004-02-16 2005-09-01 Aberdeen University Liquified gas cryostat
GB2414539A (en) * 2004-05-25 2005-11-30 Siemens Magnet Technology Ltd An electrically conductive shield for a refrigerator
GB2414539B (en) * 2004-05-25 2007-07-25 Siemens Magnet Technology Ltd Electrically conductive shield for refrigerator
US8171741B2 (en) 2004-05-25 2012-05-08 Siemens Plc Electrically conductive shield for refrigerator

Also Published As

Publication number Publication date
GB9903405D0 (en) 1999-04-07
WO1998006972A1 (en) 1998-02-19
GB9617175D0 (en) 1996-09-25
GB2331798B (en) 2000-12-20
AU3856997A (en) 1998-03-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20120811