gradient magnetic field

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• Magnetic field — This article is about a scientific description of the magnetic influence of an electric current or magnetic material. For the physics of magnetic materials, see magnetism. For information about objects that create magnetic fields, see magnet. For …   Wikipedia

• magnetic field gradient — in magnetic resonance imaging, the change in the magnetic field in a given direction …   Medical dictionary

• Earth's magnetic field — Computer simulation of the Earth s field in a normal period between reversals.[1] The tubes represent magnetic field lines, blue when the field points towards the center and yellow when away. The rotation axis of the Earth is centered and… …   Wikipedia

• Mercury's magnetic field — Magnetosphere of Mercury Graph showing relative strength of Mercury s magnetic field. Discovery[1] …   Wikipedia

• Force-free magnetic field — A force free magnetic field is a type of field which arises as a special case from the magnetostatic equation in plasmas. This special case arises when the plasma pressure is so small, relative to the magnetic pressure, that the plasma pressure… …   Wikipedia

• Magnetic pressure — is an energy density associated with the magnetic field. It is identical to any other physical pressure except that it is carried by the magnetic field rather than (in the case of gas) kinetic energy of the gas molecules. Interplay between… …   Wikipedia

• Magnetic resonance angiography — Intervention Time of flight MRA showing the circle of Willis in the brain. Note the venetian blinds artifact visible as the multiple pseudo stenosis on both the left and right middle cerebral artery …   Wikipedia

• Magnetic Surveying in Archaeology (book) — Magnetic Surveying in Archaeology (Wormianum, 2008, ISBN 978 87 89531 29 8) is a book written by Russian archaeologist T. N. Smekalova together with O. Voss and S. L. Smekalov. In the book researches collected information about magnetic… …   Wikipedia

• Gradient enhanced NMR spectroscopy — Gradient enhanced NMR is a method for obtaining high resolution nuclear magnetic resonance spectra without the need for phase cycling . Gradient methodology is used extensively for two purposes, either rephasing (selection) or dephasing… …   Wikipedia

• Magnetic resonance microscopy — (MRM, µMRI) is Magnetic Resonance Imaging (MRI) at a microscopic level. A strict definition is MRI having voxel resolutions of better than 100 µm³ [1]. Contents 1 Nomenclature 2 Differences between MRI and MRM …   Wikipedia

• Magnetic resonance force microscopy — (MRFM) is an imaging technique that acquires magnetic resonance images (MRI) at nanometer scales, and possibly at atomic scales in the future. MRFM is potentially able to observe protein structures which cannot be seen using X ray crystallography …   Wikipedia