Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1997-10-21
1999-09-14
Barlow, John
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
324318, 324319, 324320, 324322, 324307, 324300, G01V 3175
Patent
active
059528290
ABSTRACT:
The invention relates to a process for magnetic resonance examinations, in particular nuclear spin tomography, whereby a static magnetic field is produced in an examination zone and at least one gradient magnetic field is superposed, whereby unwanted alternating electromagnetic forces are produced, whereby by means of magnetostriction, forces opposing the electromagnetic forces are produced by the same gradient magnetic field and these forces act longitudinally and/or radially and/or around the circumference of the examination zone. Furthermore, the invention relates to a device for magnetic resonance examinations, in particular nuclear spin tomography, with a first generating unit for a static magnetic field, a second generating unit (20) for at least one gradient magnetic field and a support unit (10) for the second generating unit (20), whereby a magnetostrictive material system (11, 12) is provided on the support unit (10).
REFERENCES:
patent: 5502781 (1996-03-01), Li et al.
"Smart Materials & Structures," Institute of Physics Publishing, vol. 4, Supplement 1A, Mar., 1995.
Flint Eric M.
Lammering Rolf
Melcher Jorg
Barlow John
Deutsche Forschungsanstalt fur Luft - und Raumfahrt e.V.
Shrivastav Brij B.
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