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 ?
Applied magnetic field and magnetic field gradient together with the vascularization of target region are particularly important when considering the distance from the magnets to the locations where particles are still effectively captured [8].
Magnetic field gradient also contribute significantly to the corrosion behaviors of ferromagnetic materials.
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.
The magnetic field gradient influences the flame behaviour (shapes, sizes), rate of heat production and combustion efficiency (Nagaraju 2005; Swaminathan 2005).
There will be a force drawing the steel sphere into the centre of the gap, since there exists a magnetic field gradient in every direction away from this center-point.
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.
The final step was to use the OPERA-2d magnetostatic analysis software to design a sextupole perturbation for the pole tip of the quadrupole magnet that produced the desired horizontal magnetic field gradient.
As pointed out by Eriez, in the design of a magnetic separator, the magnetic field intensity and the magnetic field gradient are two primary variables which influence separation response.