field gradient

(redirected from magnetic field gradient)
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field gradient

[′fēld ‚grād·ē·ənt]
(physics)
A vector obtained by applying the del operator to a scalar field.
A tensor obtained by dyadic multiplication of the del operator with a vector field.
References in periodicals archive ?
He found that while the effect was small, the material was able to generate a cooling effect in response to a moderate magnetic field gradient.
Because the KMXP sensors detect a magnetic field gradient, they are virtually insensitive to homogenous stray fields and vibrations.
The magnetic field gradient influences the flame behaviour (shapes, sizes), rate of heat production and combustion efficiency (Nagaraju 2005; Swaminathan 2005).
This effect is provided in contrast to traditional methods of polishing both by an optimal ratio of velocities of the workpiece-tool movement and the velocity of the MRPF jet flow, by the design of the magnetic system, which creates a magnetic field gradient, and compositional features of MRPF having the desired plastic characteristics and required complex filler particle distribution in the treatment zone.
If there simultaneously exists a magnetic field gradient during the MRI, this movement of the axon causes the spins to diphase, resulting in an artifact in the magnetic resonance signal.
This reduction in voxel size is greatly facilitated by using small magnetic field gradient coils that are capable of rapidly generating extremely steep magnetic field gradients (Mayer et al.
The levitation occurs due to the force which a ferrofluid, placed into a magnetic field gradient, exerts upon these bodies.
A recently completed work [19] and subsequent analysis [20] has called attention to the existence of a serious systematic effect produced by the combination of a magnetic field gradient and the well known v X E motional magnetic field acting on the UCN spins by the Bloch-Siegert effect.
Magnetic fie]d intensity and the magnetic field gradient are key variables that affect separation response.
Elaborating on the procedure of the research, he said, "Magnetic dipoles found in magnetic nanofluid are influenced by magnetic field gradient in such a way that if the magnetic field gradient positions in the same direction with natural convection of nanofluid, heat transfer in nanofluid will be improved, and vice-versa.
UCN of one polarization component get accelerated in the magnetic field gradient, and have a longitudinal velocity of more than 7.
Building contracts buying a nuclear magnetic resonance spectrometer (nmr) with hydrogen working at 400 mhz suitable for liquid and solid samples, including the console with two rf channels (frequency and broadband) with respective amplifiers, magnetic field gradients, then a broadband measurement probe with automatic tuning for liquid samples, cp mas probe rotors diameter 3.