EP 2467730 A1 20120627 - METHOD FOR EXAMINING THE NUCLEAR MAGNETIC RESONANCE IN A SAMPLE AND DEVICE FOR CARRYING OUT THE METHOD
Title (en)
METHOD FOR EXAMINING THE NUCLEAR MAGNETIC RESONANCE IN A SAMPLE AND DEVICE FOR CARRYING OUT THE METHOD
Title (de)
VERFAHREN ZUR UNTERSUCHUNG DER KERNSPINRESONANZ IN EINER PROBE UND VORRICHTUNG ZUR DURCHFÜHRUNG DES VERFAHRENS
Title (fr)
PROCÉDÉ D ANALYSE DE LA RÉSONANCE MAGNÉTIQUE NUCLÉAIRE DANS UN ÉCHANTILLON ET DISPOSITIF PERMETTANT DE METTRE EN UVRE LEDIT PROCÉDÉ
Publication
Application
Priority
- DE 102009038472 A 20090821
- EP 2010005034 W 20100817
Abstract (en)
[origin: WO2011020590A1] The present invention relates to a method for examining the nuclear magnetic resonance in a sample volume located in a measuring volume and to a device for carrying out the method. By means of an excitation laser, a packet of laser pulses is created, which then acts on the measuring volume when a quasi-static magnetic field occurs therein. If the resonance conditions for nuclear spins contained therein are fulfilled, the sample volume emits a response signal that is received by a detector. The quasi-static magnetic field occurring within the measuring volume is provided as follows: i) the measuring volume is acted on by a low-frequency laser beam, the wavelength of which exceeds the wavelength of the excitation laser by at least 102. Thus a periodically variable magnetic field is created in the measuring volume. The amplitude of said field is at least 90% of the maximum thereof in the measuring volume; or ii) the measuring volume is acted on by a high-frequency laser beam, the frequency of which exceeds the frequency of the excitation laser by at least 102. The laser beam is subjected to rectification before acting on the measuring volume. Thus a quasi-static magnetic field is created in the measuring volume, having an effective mean constant flux density over at least 10 periods, wherein the spatial and time average of the flux density are not equal to zero.
IPC 8 full level
G01R 33/62 (2006.01)
CPC (source: EP US)
G01R 33/62 (2013.01 - EP US)
Citation (search report)
See references of WO 2011020590A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
DE 102009038472 A1 20110224; EP 2467730 A1 20120627; US 2012146635 A1 20120614; US 8890520 B2 20141118; WO 2011020590 A1 20110224
DOCDB simple family (application)
DE 102009038472 A 20090821; EP 10751802 A 20100817; EP 2010005034 W 20100817; US 201013391584 A 20100817