JPH0219430B2 - - Google Patents
Info
- Publication number
- JPH0219430B2 JPH0219430B2 JP59238233A JP23823384A JPH0219430B2 JP H0219430 B2 JPH0219430 B2 JP H0219430B2 JP 59238233 A JP59238233 A JP 59238233A JP 23823384 A JP23823384 A JP 23823384A JP H0219430 B2 JPH0219430 B2 JP H0219430B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- superconducting coil
- coil
- magnet device
- coil assembly
- 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 - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 238000004804 winding Methods 0.000 claims description 26
- 230000000712 assembly Effects 0.000 claims description 23
- 238000000429 assembly Methods 0.000 claims description 23
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 5
- 239000000696 magnetic material Substances 0.000 claims description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 20
- 239000001307 helium Substances 0.000 description 17
- 229910052734 helium Inorganic materials 0.000 description 17
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 17
- 238000003384 imaging method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000002887 superconductor Substances 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8330198 | 1983-11-11 | ||
| GB838330198A GB8330198D0 (en) | 1983-11-11 | 1983-11-11 | Magnet assembly |
| GB8400684 | 1984-01-11 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3318742A Division JPH0564634A (ja) | 1983-11-11 | 1991-09-26 | 磁石装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60123756A JPS60123756A (ja) | 1985-07-02 |
| JPH0219430B2 true JPH0219430B2 (de) | 1990-05-01 |
Family
ID=10551652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59238233A Granted JPS60123756A (ja) | 1983-11-11 | 1984-11-12 | 磁石装置 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS60123756A (de) |
| GB (1) | GB8330198D0 (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0216590B2 (de) * | 1985-09-20 | 2001-06-06 | Btg International Limited | Magnetische Abschirmungen |
| JPS63284805A (ja) | 1987-05-18 | 1988-11-22 | Mitsubishi Electric Corp | 超電導電磁石装置 |
| JPS64715A (en) | 1987-06-23 | 1989-01-05 | Mitsubishi Electric Corp | Superconducting electromagnet device |
| US4924198A (en) * | 1988-07-05 | 1990-05-08 | General Electric Company | Superconductive magnetic resonance magnet without cryogens |
| WO1990003038A1 (en) * | 1988-09-08 | 1990-03-22 | Mitsubishi Denki Kabushiki Kaisha | Superconductive magnet device |
| JPH02195937A (ja) * | 1989-01-26 | 1990-08-02 | Toshiba Corp | 磁気共鳴イメージング装置用静磁界磁石 |
| US5045826A (en) * | 1990-04-05 | 1991-09-03 | General Electric Company | Actively shielded magnetic resonance magnet without cryogens |
| US5426366A (en) * | 1992-12-11 | 1995-06-20 | U.S. Philips Corporation | Magnetic resonance apparatus comprising a superconducting magnet |
| US5633587A (en) * | 1995-02-14 | 1997-05-27 | Kabushiki Kaisha Toshiba | Magnetostatic field generating magnet for use in an MRI system having an active magnetic shield |
| DE10041672C2 (de) * | 2000-08-24 | 2002-07-11 | Bruker Ag Faellanden | Magnetanordnung mit einem zusätzlichen stromführenden Spulensystem und Verfahren zu deren Dimensionierung |
| JP2009141255A (ja) * | 2007-12-10 | 2009-06-25 | Kobe Steel Ltd | 超電導電磁石 |
| JP7134679B2 (ja) * | 2018-04-10 | 2022-09-12 | キヤノンメディカルシステムズ株式会社 | 磁気共鳴イメージング装置および静磁場補正方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6098344A (ja) * | 1983-10-14 | 1985-06-01 | エヌ・ベー・フイリツプス・フルーイランペンフアブリケン | 核磁気共鳴装置 |
-
1983
- 1983-11-11 GB GB838330198A patent/GB8330198D0/en active Pending
-
1984
- 1984-11-12 JP JP59238233A patent/JPS60123756A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6098344A (ja) * | 1983-10-14 | 1985-06-01 | エヌ・ベー・フイリツプス・フルーイランペンフアブリケン | 核磁気共鳴装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8330198D0 (en) | 1983-12-21 |
| JPS60123756A (ja) | 1985-07-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |