JP3972968B2 - 冷凍剤再凝縮システム - Google Patents
冷凍剤再凝縮システム Download PDFInfo
- Publication number
- JP3972968B2 JP3972968B2 JP29859197A JP29859197A JP3972968B2 JP 3972968 B2 JP3972968 B2 JP 3972968B2 JP 29859197 A JP29859197 A JP 29859197A JP 29859197 A JP29859197 A JP 29859197A JP 3972968 B2 JP3972968 B2 JP 3972968B2
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- superconducting
- superconducting magnet
- cryocooler
- rare earth
- 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.)
- Expired - Fee Related
Links
- 239000003507 refrigerant Substances 0.000 title claims 2
- 230000005291 magnetic effect Effects 0.000 claims abstract description 51
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 32
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 32
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 12
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000002595 magnetic resonance imaging Methods 0.000 claims description 32
- 229910001152 Bi alloy Inorganic materials 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 2
- 229910000978 Pb alloy Inorganic materials 0.000 claims 3
- 230000008014 freezing Effects 0.000 claims 1
- 238000007710 freezing Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 13
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 229910052594 sapphire Inorganic materials 0.000 abstract description 2
- 239000010980 sapphire Substances 0.000 abstract description 2
- 239000001307 helium Substances 0.000 description 18
- 229910052734 helium Inorganic materials 0.000 description 18
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 18
- 238000003384 imaging method Methods 0.000 description 13
- 239000007788 liquid Substances 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 238000009835 boiling Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910001275 Niobium-titanium Inorganic materials 0.000 description 4
- 239000004519 grease Substances 0.000 description 4
- RJSRQTFBFAJJIL-UHFFFAOYSA-N niobium titanium Chemical compound [Ti].[Nb] RJSRQTFBFAJJIL-UHFFFAOYSA-N 0.000 description 4
- 229910000909 Lead-bismuth eutectic Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 229910001281 superconducting alloy Inorganic materials 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
- G01R33/3815—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets with superconducting coils, e.g. power supply therefor
-
- 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
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
- F25D19/006—Thermal coupling structure or interface
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/04—Cooling
-
- 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
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- 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
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0337—Heat exchange with the fluid by cooling
- F17C2227/0341—Heat exchange with the fluid by cooling using another fluid
- F17C2227/0353—Heat exchange with the fluid by cooling using another fluid using cryocooler
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/17—Re-condensers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/741993 | 1996-10-31 | ||
| US08/741,993 US5701744A (en) | 1996-10-31 | 1996-10-31 | Magnetic resonance imager with helium recondensing |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPH10213357A JPH10213357A (ja) | 1998-08-11 |
| JPH10213357A5 JPH10213357A5 (enExample) | 2005-06-09 |
| JP3972968B2 true JP3972968B2 (ja) | 2007-09-05 |
Family
ID=24983076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29859197A Expired - Fee Related JP3972968B2 (ja) | 1996-10-31 | 1997-10-30 | 冷凍剤再凝縮システム |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5701744A (enExample) |
| EP (1) | EP0840136B1 (enExample) |
| JP (1) | JP3972968B2 (enExample) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5782095A (en) * | 1997-09-18 | 1998-07-21 | General Electric Company | Cryogen recondensing superconducting magnet |
| US6029458A (en) * | 1998-05-07 | 2000-02-29 | Eckels; Phillip William | Helium recondensing magnetic resonance imager superconducting shield |
| US6011454A (en) * | 1998-12-30 | 2000-01-04 | Huang; Xianrui | Superconducting magnet suspension assembly |
| US6484516B1 (en) | 2001-12-07 | 2002-11-26 | Air Products And Chemicals, Inc. | Method and system for cryogenic refrigeration |
| DE10354676B4 (de) * | 2003-11-22 | 2006-12-21 | Bruker Biospin Gmbh | Magnetsystem mit flächenhafter, mehrlagiger Anordnung von Supraleiterdrähten |
| US7263841B1 (en) * | 2004-03-19 | 2007-09-04 | Praxair Technology, Inc. | Superconducting magnet system with supplementary heat pipe refrigeration |
| DE102004023072B4 (de) * | 2004-05-11 | 2008-08-14 | Bruker Biospin Ag | Magnetsystem mit abgeschirmtem Regeneratormaterial und Verfahren zum Betrieb des Magnetsystems |
| DE102004023073B3 (de) * | 2004-05-11 | 2006-01-05 | Bruker Biospin Gmbh | Magnetsystem mit abgeschirmten Regeneratorgehäuse und Verfahren zum Betrieb eines solchen Magnetsystems |
| GB0411607D0 (en) * | 2004-05-25 | 2004-06-30 | Oxford Magnet Tech | Recondenser interface |
| WO2005116515A1 (en) * | 2004-05-25 | 2005-12-08 | Siemens Magnet Technology Ltd | Cooling apparatus comprising a thermal interface and method for recondensing a cryogen gas |
| GB0411603D0 (en) * | 2004-05-25 | 2004-06-30 | Oxford Magnet Tech | Electromagnetic shield for refrigerator |
| WO2005117036A1 (en) * | 2004-05-25 | 2005-12-08 | Siemens Magnet Technology Ltd | Electrically conductive shield for refrigerator |
| DE102004037173B3 (de) * | 2004-07-30 | 2005-12-15 | Bruker Biospin Ag | Vorrichtung zur kryogenverlustfreien Kühlung einer Kryostatanordnung |
| GB2431462B (en) * | 2005-02-05 | 2008-01-09 | Siemens Magnet Technology Ltd | Recondensing service neck for cryostat |
| EP1899741B1 (en) * | 2005-06-28 | 2017-05-31 | Koninklijke Philips N.V. | Ferromagnetic shield for magnetic resonance imaging |
| JP4404021B2 (ja) * | 2005-06-30 | 2010-01-27 | 株式会社日立製作所 | Mri用超電導磁石 |
| US7500366B2 (en) * | 2005-12-08 | 2009-03-10 | Shi-Apd Cryogencis, Inc. | Refrigerator with magnetic shield |
| JP4796393B2 (ja) * | 2006-01-17 | 2011-10-19 | 株式会社日立製作所 | 超電導電磁石 |
| JP4422711B2 (ja) | 2006-11-20 | 2010-02-24 | 株式会社日立製作所 | 超電導磁石装置および磁気共鳴撮像装置 |
| US9234691B2 (en) * | 2010-03-11 | 2016-01-12 | Quantum Design International, Inc. | Method and apparatus for controlling temperature in a cryocooled cryostat using static and moving gas |
| US8570043B2 (en) | 2010-10-05 | 2013-10-29 | General Electric Company | System and method for self-sealing a coldhead sleeve of a magnetic resonance imaging system |
| JP2012234939A (ja) | 2011-04-28 | 2012-11-29 | High Energy Accelerator Research Organization | 超電導磁石用磁気遮蔽材 |
| CN103077797B (zh) * | 2013-01-06 | 2016-03-30 | 中国科学院电工研究所 | 用于头部成像的超导磁体系统 |
| GB2547581B (en) | 2014-11-04 | 2019-01-09 | Shenzhen United Imaging Healthcare Co Ltd | Displacer in magnetic resonance imaging system |
| JP7648426B2 (ja) * | 2021-04-08 | 2025-03-18 | 住友重機械工業株式会社 | 超伝導磁石装置およびサイクロトロン |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3167136B2 (ja) * | 1990-12-25 | 2001-05-21 | 株式会社イノアックコーポレーション | 発泡体複合品 |
| US5442928A (en) * | 1994-08-05 | 1995-08-22 | General Electric | Hybrid cooling system for a superconducting magnet |
| EP0720024B1 (en) * | 1994-12-29 | 2001-11-14 | General Electric Company | Helium recondensing superconducting magnet |
-
1996
- 1996-10-31 US US08/741,993 patent/US5701744A/en not_active Expired - Fee Related
-
1997
- 1997-10-30 JP JP29859197A patent/JP3972968B2/ja not_active Expired - Fee Related
- 1997-10-31 EP EP97308759A patent/EP0840136B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10213357A (ja) | 1998-08-11 |
| EP0840136A1 (en) | 1998-05-06 |
| US5701744A (en) | 1997-12-30 |
| EP0840136B1 (en) | 2004-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3972968B2 (ja) | 冷凍剤再凝縮システム | |
| EP0955555B1 (en) | Cryocooler with a superconducting sleeve for a helium recondensing magnetic resonance imager | |
| US20230042894A1 (en) | Cryogen-free cooling apparatus | |
| US8072219B2 (en) | Regenerative expansion apparatus, pulse tube cryogenic cooler, magnetic resonance imaging apparatus, nuclear magnetic resonance apparatus, superconducting quantum interference device flux meter, and magnetic shielding method of the regenerative expansion apparatus | |
| JP4417247B2 (ja) | 超伝導磁石と冷凍ユニットとを備えたmri装置 | |
| EP2439754A1 (en) | Refrigerator cooling-type superconducting magnet | |
| US5442928A (en) | Hybrid cooling system for a superconducting magnet | |
| US6396377B1 (en) | Liquid cryogen-free superconducting magnet system | |
| US6323749B1 (en) | MRI with superconducting coil | |
| US6847278B2 (en) | Magnetic device | |
| US8171741B2 (en) | Electrically conductive shield for refrigerator | |
| US7924011B2 (en) | Ferromagnetic shield for magnetic resonance imaging | |
| JP3648265B2 (ja) | 超電導磁石装置 | |
| JP5920924B2 (ja) | 超電導磁石装置及び磁気共鳴撮像装置 | |
| Sakai et al. | A 3 T superconducting magnet for long-run magnetic Compton-scattering experiments | |
| JP2001263844A (ja) | 極低温冷凍機 | |
| JPH11329834A (ja) | 超伝導材料からなる導体を備えた超伝導装置 | |
| KR20010097207A (ko) | 고온 초전도 마그네트 시스템 | |
| Thummes et al. | Reaching 96 mK by a pulse-tube precooled adiabatic demagnetization refrigerator | |
| WO2005117036A1 (en) | Electrically conductive shield for refrigerator | |
| Tausczik | Magnetically active regeneration | |
| Hutchins et al. | Advances in dilution refrigeration in high magnetic fields |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040831 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040831 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060613 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060804 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20061114 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20070123 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20070508 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20070605 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100622 Year of fee payment: 3 |
|
| LAPS | Cancellation because of no payment of annual fees |