JP4602910B2 - Nmr装置およびその位置決め方法 - Google Patents
Nmr装置およびその位置決め方法 Download PDFInfo
- Publication number
- JP4602910B2 JP4602910B2 JP2006005651A JP2006005651A JP4602910B2 JP 4602910 B2 JP4602910 B2 JP 4602910B2 JP 2006005651 A JP2006005651 A JP 2006005651A JP 2006005651 A JP2006005651 A JP 2006005651A JP 4602910 B2 JP4602910 B2 JP 4602910B2
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- Prior art keywords
- nmr
- probe
- magnetic field
- coil
- bore
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- 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
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
- G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
- G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
- G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0
-
- 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
- G01R33/30—Sample handling arrangements, e.g. sample cells, spinning mechanisms
- G01R33/307—Sample handling arrangements, e.g. sample cells, spinning mechanisms specially adapted for moving the sample relative to the MR system, e.g. spinning mechanisms, flow cells or means for positioning the sample inside a spectrometer
-
- 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
- G01R33/3806—Open magnet assemblies for improved access to the sample, e.g. C-type or U-type magnets
-
- 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
- G01R33/387—Compensation of inhomogeneities
- G01R33/3875—Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- High Energy & Nuclear Physics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Measuring Magnetic Variables (AREA)
Description
Claims (8)
- スプリット型マグネットに設けられた一方のボアにNMRプローブ、他方のボアにサンプル管を挿入するNMR装置の位置決め方法において、
NMR信号から得られる周波数スペクトルの先鋭度に基づいてNMRプローブの位置を決定することを特徴とするNMR装置の位置決め方法。 - 請求項1において、前記NMRプローブの先端であるプローブコイルの位置を変更し、前記プローブコイルから受信したNMR信号の周波数スペクトルの先鋭度が高く、前記プローブコイルが配置されている位置の磁場均一度が最適となるようにNMRプローブの位置を決定することを特徴とするNMR装置の位置決め方法。
- 請求項1において、前記サンプル管に装着されるサンプルはNMRスペクトル形状が既知である模擬サンプルであることを特徴とするNMR装置の位置決め方法。
- 請求項1において、前記NMRプローブを挿入するボアにシムコイルが配置されており、前記決定されたNMRプローブの位置において、前記シムコイルによる磁場均一度の調整を行うことを特徴とするNMR装置の位置決め方法。
- スプリット型マグネットと、該マグネットに設けられた一方のボアにNMRプローブ、他方のボアにサンプル管を備えるNMR装置において、
前記NMRプローブの先端であるプローブコイルから受信したNMR信号の周波数スペクトルの先鋭度が高く、前記プローブコイルの配置位置の磁場均一度が最適となるように決定された前記配置位置にNMRプローブを設定するように構成されたことを特徴とするNMR装置。 - 請求項5において、前記サンプル管は予め前記NMRプローブに設置しておくことを特徴とするNMR装置。
- 請求項5において、前記NMRプローブの回転方向と軸方向の位置を調整するために、クライオスタットに2枚のフランジを組み合わせ、外側フランジは軸方向の移動を可能とするように取り付け、内側フランジは前記NMRプローブと固定され、かつ外側フランジと軸方向の相対位置を変えることなく任意の角度に固定できる、プローブ位置調整機構を備えていることを特徴とするNMR装置。
- 請求項5において、前記スプリット型マグネットに巻かれて互いに対向するコイルは、超電導コイルであることを特徴とするNMR装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006005651A JP4602910B2 (ja) | 2006-01-13 | 2006-01-13 | Nmr装置およびその位置決め方法 |
US11/621,611 US7521929B2 (en) | 2006-01-13 | 2007-01-10 | NMR system and probe positioning method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006005651A JP4602910B2 (ja) | 2006-01-13 | 2006-01-13 | Nmr装置およびその位置決め方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007187544A JP2007187544A (ja) | 2007-07-26 |
JP4602910B2 true JP4602910B2 (ja) | 2010-12-22 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2006005651A Expired - Fee Related JP4602910B2 (ja) | 2006-01-13 | 2006-01-13 | Nmr装置およびその位置決め方法 |
Country Status (2)
Country | Link |
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US (1) | US7521929B2 (ja) |
JP (1) | JP4602910B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8384387B1 (en) * | 2008-02-14 | 2013-02-26 | Fonar Corporation | Magnetic resonance imaging apparatus |
US9110132B2 (en) * | 2011-08-05 | 2015-08-18 | Chris Chiodo | Electrical and fluid connection system for magnetic imaging |
EP3715893B1 (de) * | 2019-03-25 | 2021-02-24 | Bruker Switzerland AG | Nmr-spektrometer mit schnellwechselsystem für proben |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000292515A (ja) * | 1999-04-01 | 2000-10-20 | Ricoh Co Ltd | Nmr装置におけるプローブ固定構造 |
JP2002311118A (ja) * | 2001-03-09 | 2002-10-23 | Bruker Biospin Ag | 高解像度nmrスペクトロメータにおけるサンプル管の搬送及び正確な位置決めのための装置 |
US20030120146A1 (en) * | 2001-12-21 | 2003-06-26 | General Electric Company | Method and system for tracking small coils using magnetic resonance |
JP2004309208A (ja) * | 2003-04-03 | 2004-11-04 | Hitachi Ltd | Nmr分析装置用マグネットおよびそれを用いたnmr分析装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5882304A (en) * | 1997-10-27 | 1999-03-16 | Picker Nordstar Corporation | Method and apparatus for determining probe location |
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2006
- 2006-01-13 JP JP2006005651A patent/JP4602910B2/ja not_active Expired - Fee Related
-
2007
- 2007-01-10 US US11/621,611 patent/US7521929B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000292515A (ja) * | 1999-04-01 | 2000-10-20 | Ricoh Co Ltd | Nmr装置におけるプローブ固定構造 |
JP2002311118A (ja) * | 2001-03-09 | 2002-10-23 | Bruker Biospin Ag | 高解像度nmrスペクトロメータにおけるサンプル管の搬送及び正確な位置決めのための装置 |
US20030120146A1 (en) * | 2001-12-21 | 2003-06-26 | General Electric Company | Method and system for tracking small coils using magnetic resonance |
JP2004309208A (ja) * | 2003-04-03 | 2004-11-04 | Hitachi Ltd | Nmr分析装置用マグネットおよびそれを用いたnmr分析装置 |
Also Published As
Publication number | Publication date |
---|---|
US20070164745A1 (en) | 2007-07-19 |
US7521929B2 (en) | 2009-04-21 |
JP2007187544A (ja) | 2007-07-26 |
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