IL129471A - Magnetic resonance apparatus having reduced "dead time" - Google Patents
Magnetic resonance apparatus having reduced "dead time"Info
- Publication number
- IL129471A IL129471A IL12947197A IL12947197A IL129471A IL 129471 A IL129471 A IL 129471A IL 12947197 A IL12947197 A IL 12947197A IL 12947197 A IL12947197 A IL 12947197A IL 129471 A IL129471 A IL 129471A
- Authority
- IL
- Israel
- Prior art keywords
- receiver
- signal
- resonator
- resonators
- excitation pulse
- Prior art date
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 36
- 230000005284 excitation Effects 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 19
- 230000003068 static effect Effects 0.000 claims abstract description 10
- 238000011835 investigation Methods 0.000 claims abstract description 7
- 238000004435 EPR spectroscopy Methods 0.000 claims description 11
- 238000005481 NMR spectroscopy Methods 0.000 claims description 9
- 238000003384 imaging method Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 description 10
- 238000004316 pulse electron spin resonance spectroscopy Methods 0.000 description 9
- 239000000523 sample Substances 0.000 description 9
- 238000001514 detection method Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 150000003254 radicals Chemical class 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000005298 paramagnetic effect Effects 0.000 description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 2
- 239000002504 physiological saline solution Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 241000700159 Rattus Species 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001362 electron spin resonance spectrum Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
- G01R33/3628—Tuning/matching of the transmit/receive coil
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9622183.3A GB9622183D0 (en) | 1996-10-25 | 1996-10-25 | Magnetic resonance apparatus having reduced dead time |
| PCT/GB1997/002936 WO1998019175A1 (en) | 1996-10-25 | 1997-10-24 | Magnetic resonance apparatus having reduced 'dead time' |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL129471A0 IL129471A0 (en) | 2000-02-29 |
| IL129471A true IL129471A (en) | 2002-12-01 |
Family
ID=10801909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL12947197A IL129471A (en) | 1996-10-25 | 1997-10-24 | Magnetic resonance apparatus having reduced "dead time" |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0937262B1 (de) |
| JP (1) | JP2001505304A (de) |
| DE (1) | DE69720498T2 (de) |
| GB (1) | GB9622183D0 (de) |
| IL (1) | IL129471A (de) |
| WO (1) | WO1998019175A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3267499A (en) | 1998-03-06 | 1999-09-20 | Btg International Limited | Apparatus for and method of nuclear quadrupole resonance testing a sample in thepresence of interference |
| DE19844895C2 (de) * | 1998-09-30 | 2000-10-05 | Wilfried Hellmuth Bergmann | Probenkopf für ein NMR-Spektrometer |
| US6498484B1 (en) * | 2000-06-15 | 2002-12-24 | Schlumberger Technology Corporation | Method for reducing ringing in nuclear magnetic resonance well logging instruments |
| AR041716A1 (es) * | 2003-10-24 | 2005-05-26 | Spinlock S R L | Un conjunto sensor y un metodo para la deteccion de sustancias, por resonancia cuadrupolar nuclear (rcn) y en presencia de interferencia ambiental |
| JP2005131104A (ja) * | 2003-10-30 | 2005-05-26 | Ge Medical Systems Global Technology Co Llc | 信号調整方法およびｍｒｉ装置 |
| DE102014218873B4 (de) * | 2014-09-19 | 2019-02-21 | Forschungszentrum Jülich GmbH | Messvorrichtung für schwache elektromagnetische Signale einer Probe bei niedrigen Frequenzen nebst Verfahren |
| EP4354167A1 (de) * | 2022-10-14 | 2024-04-17 | Bruker France S.A.S. | Mikrowellenleistungsverstärkeranordnung für ein gepulstes epr-system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3768003A (en) * | 1971-09-27 | 1973-10-23 | Varian Associates | Pulsed resonance spectrometer system employing improved radio frequency pulse turn-off method and apparatus |
| FI80797C (fi) * | 1988-10-31 | 1990-07-10 | Instrumentarium Oy | Maetningsprocedur foer att fraon nmr-signaler avlaegsna stoerningar genom jaemfoerelse av i olika riktningar roterande rf-faeltkomponenter. |
-
1996
- 1996-10-25 GB GBGB9622183.3A patent/GB9622183D0/en active Pending
-
1997
- 1997-10-24 DE DE69720498T patent/DE69720498T2/de not_active Expired - Fee Related
- 1997-10-24 EP EP97909503A patent/EP0937262B1/de not_active Expired - Lifetime
- 1997-10-24 IL IL12947197A patent/IL129471A/en not_active IP Right Cessation
- 1997-10-24 JP JP52017698A patent/JP2001505304A/ja not_active Ceased
- 1997-10-24 WO PCT/GB1997/002936 patent/WO1998019175A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP0937262A1 (de) | 1999-08-25 |
| EP0937262B1 (de) | 2003-04-02 |
| DE69720498T2 (de) | 2003-12-24 |
| DE69720498D1 (de) | 2003-05-08 |
| IL129471A0 (en) | 2000-02-29 |
| WO1998019175A1 (en) | 1998-05-07 |
| JP2001505304A (ja) | 2001-04-17 |
| GB9622183D0 (en) | 1996-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Borbat et al. | Multifrequency two-dimensional fourier transform ESR: an X/ku–Band spectrometer | |
| Grisi et al. | A broadband single-chip transceiver for multi-nuclear NMR probes | |
| CA2095234C (en) | Nmr frequency locking circuit | |
| US6054856A (en) | Magnetic resonance detection coil that is immune to environmental noise | |
| AU752526B2 (en) | Resonant structure for spatial and spectral-spatial imaging of free radical spin probes using radiofrequency time domain electron paramagnetic resonance spectroscopy | |
| US6150817A (en) | Magnetic resonance apparatus having reduced "dead time" | |
| Louis-Joseph et al. | Neutralization of radiation damping by selective feedback on a 400 MHz NMR spectrometer | |
| US4712069A (en) | Magnetic resonance imaging apparatus including two orthogonal r.f. coils | |
| Sohn et al. | In vivo MR imaging with simultaneous RF transmission and reception | |
| US5387867A (en) | Pulsed low frequency EPR spectrometer and imager | |
| EP0570592B1 (de) | Resonator für elektron-spins | |
| US4803624A (en) | Electron spin resonance spectrometer | |
| US3879653A (en) | Microwave spectrometer employing a bimodal cavity resonator | |
| Quine et al. | A 1–2 GHz pulsed and continuous wave electron paramagnetic resonance spectrometer | |
| US3350633A (en) | Gyromagnetic spectrometer having separate dispersion and absorption mode detectors | |
| EP0937262B1 (de) | Verfahren zur reduktion der "totzeit" in einem gerät der magnetischen resonanz | |
| JP2000512003A (ja) | 分光法のための交差ループ共振器の構造 | |
| GB2319086A (en) | Testing a sample by nuclear resonance | |
| Alecci et al. | A submicrosecond resonator and receiver system for pulsed magnetic resonance with large samples | |
| Alecci et al. | A radiofrequency (220-MHz) Fourier transform EPR spectrometer | |
| US10551450B2 (en) | Method and apparatus for resonator signal production and measurement | |
| Dabirzadeh | Rf coil design for multi-frequency magnetic resonance imaging & spectroscopy | |
| McCallum et al. | Multimodality magnetic resonance systems for studying free radicals in vivo | |
| Jenkinson et al. | Nuclear quadrupole resonance of explosives: Simultaneous detection of RDX and PETN in semtex | |
| Curto et al. | An open volume, high isolation, radio frequency surface coil system for pulsed magnetic resonance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FF | Patent granted | ||
| FF | Patent granted | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| MM9K | Patent not in force due to non-payment of renewal fees |