DE102007028833A1 - Verfahren und Vorrichtung zur örtlichen Abschirmung einer supraleitenden MR Magnetspule - Google Patents
Verfahren und Vorrichtung zur örtlichen Abschirmung einer supraleitenden MR Magnetspule Download PDFInfo
- Publication number
- DE102007028833A1 DE102007028833A1 DE102007028833A DE102007028833A DE102007028833A1 DE 102007028833 A1 DE102007028833 A1 DE 102007028833A1 DE 102007028833 A DE102007028833 A DE 102007028833A DE 102007028833 A DE102007028833 A DE 102007028833A DE 102007028833 A1 DE102007028833 A1 DE 102007028833A1
- Authority
- DE
- Germany
- Prior art keywords
- gradient
- superconducting
- coil
- magnetic
- arc
- 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.)
- Withdrawn
Links
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000002595 magnetic resonance imaging Methods 0.000 abstract description 11
- 229910052734 helium Inorganic materials 0.000 description 10
- 239000001307 helium Substances 0.000 description 10
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 10
- 238000004804 winding Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 230000015654 memory Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000002887 superconductor Substances 0.000 description 2
- 239000000872 buffer Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000007787 long-term memory Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910000657 niobium-tin Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
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
-
- 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
- G01R33/42—Screening
- G01R33/421—Screening of main or gradient magnetic field
- G01R33/4215—Screening of main or gradient magnetic field of the gradient magnetic field, e.g. using passive or active shielding of the gradient magnetic field
-
- 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
- G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
- G01R33/3856—Means for cooling the gradient coils or thermal shielding of the gradient coils
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Electromagnetism (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/425,860 US7352183B2 (en) | 2006-06-22 | 2006-06-22 | Method and apparatus for locally shielding MR superconducting magnet coil |
| US11/425,860 | 2006-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102007028833A1 true DE102007028833A1 (de) | 2007-12-27 |
Family
ID=38721375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102007028833A Withdrawn DE102007028833A1 (de) | 2006-06-22 | 2007-06-20 | Verfahren und Vorrichtung zur örtlichen Abschirmung einer supraleitenden MR Magnetspule |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7352183B2 (enExample) |
| JP (1) | JP5068586B2 (enExample) |
| CN (1) | CN101093248B (enExample) |
| DE (1) | DE102007028833A1 (enExample) |
| NL (1) | NL1033935C2 (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112041696A (zh) * | 2018-04-30 | 2020-12-04 | 皇家飞利浦有限公司 | 用于mri装置的梯度屏蔽线圈 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7477055B1 (en) * | 2007-08-21 | 2009-01-13 | General Electric Company | Apparatus and method for coupling coils in a superconducting magnet |
| DE102012203331B4 (de) * | 2012-03-02 | 2015-08-27 | Siemens Aktiengesellschaft | Lokalschirm und Verfahren zur Abschirmung von Magnetresonanzsignalen |
| WO2014202514A1 (en) * | 2013-06-17 | 2014-12-24 | Koninklijke Philips N.V. | Magnetic resonance imaging gradient coil |
| US10539639B2 (en) | 2015-08-06 | 2020-01-21 | Synaptive Medical (Barbados) Inc. | Local active gradient shielding |
| CN106291421B (zh) * | 2016-09-23 | 2023-06-30 | 山东大学 | 适用于台阶法施工中核磁共振超前地质预报的发射线圈 |
| CN112748380B (zh) * | 2019-10-29 | 2024-03-19 | 西门子(深圳)磁共振有限公司 | 用于磁共振成像装置的梯度线圈及磁共振成像装置 |
| CN111580030B (zh) * | 2020-05-13 | 2022-04-22 | 山东省肿瘤防治研究院（山东省肿瘤医院） | 用于核磁共振与放疗相融合的磁场制备结构、设备及系统 |
| EP4300123B1 (en) * | 2022-06-29 | 2025-10-29 | Siemens Healthcare Limited | Magnetic resonance scanner with passively shielded gradient coil |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3577067A (en) * | 1966-05-11 | 1971-05-04 | Varian Associates | Persistent mode superconductive orthogonal gradient cancelling coils |
| US4881035A (en) * | 1987-11-24 | 1989-11-14 | Siemens Aktiengesellschaft | Magnetic structural arrangement of an installation for nuclear magnetic resonance tomography with superconducting background field coils and normal-conducting gradient coils |
| JPH0226537A (ja) * | 1988-07-14 | 1990-01-29 | Mitsubishi Electric Corp | 磁気共鳴装置 |
| US5289128A (en) * | 1992-03-27 | 1994-02-22 | Picker International, Inc. | Superconducting gradient shield coils |
| US5280247A (en) * | 1992-03-27 | 1994-01-18 | Picker International, Inc. | Filamentary cold shield for superconducting magnets |
| JPH03182232A (ja) * | 1989-12-11 | 1991-08-08 | Toshiba Corp | 磁気共鳴イメージング装置 |
| US5539367A (en) * | 1994-05-02 | 1996-07-23 | General Electric Company | Superconducting gradient shields in magnetic resonance imaging magnets |
| JPH08252235A (ja) * | 1995-03-16 | 1996-10-01 | Toshiba Corp | 磁気共鳴映像装置 |
| DE19527020C1 (de) * | 1995-07-24 | 1997-02-20 | Siemens Ag | Tesserale Gradientenspule für Kernspintomographiegeräte |
| US5597423A (en) * | 1995-12-20 | 1997-01-28 | General Electric Company | Niobium tin sheet for superconducting magnets |
| US5701075A (en) * | 1996-01-04 | 1997-12-23 | General Electric Company | Magnetic resonance imaging shimming by superconducting gradient shield |
| JPH10256027A (ja) * | 1997-03-10 | 1998-09-25 | Toshiba Corp | 超電導磁石システム |
| JP2000262486A (ja) * | 1999-03-17 | 2000-09-26 | Hitachi Ltd | 静磁場発生装置及び方法 |
| US6783059B2 (en) * | 2002-12-23 | 2004-08-31 | General Electric Company | Conduction cooled passively-shielded MRI magnet |
-
2006
- 2006-06-22 US US11/425,860 patent/US7352183B2/en active Active
-
2007
- 2007-06-05 NL NL1033935A patent/NL1033935C2/nl not_active IP Right Cessation
- 2007-06-19 JP JP2007161188A patent/JP5068586B2/ja not_active Expired - Fee Related
- 2007-06-20 DE DE102007028833A patent/DE102007028833A1/de not_active Withdrawn
- 2007-06-22 CN CN2007101262209A patent/CN101093248B/zh not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112041696A (zh) * | 2018-04-30 | 2020-12-04 | 皇家飞利浦有限公司 | 用于mri装置的梯度屏蔽线圈 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101093248A (zh) | 2007-12-26 |
| JP5068586B2 (ja) | 2012-11-07 |
| NL1033935C2 (nl) | 2010-01-26 |
| JP2008000604A (ja) | 2008-01-10 |
| US20070296414A1 (en) | 2007-12-27 |
| US7352183B2 (en) | 2008-04-01 |
| NL1033935A1 (nl) | 2008-01-02 |
| CN101093248B (zh) | 2012-09-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R005 | Application deemed withdrawn due to failure to request examination | ||
| R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20140621 |