Magnetic Particle Motion

Magnetophoresis, a nondestructive method for selectively collecting or separating magnetic particles, is the process of magnetic particle motion in a viscous medium under the influence of the magnetic field the viscous medium may... 

The presence of a static magnetic field within a plasma affects microscopic particle motions and microscopic wave motions. The charged particles execute cyclotron motion and their trajectories are altered into heUces along the field lines. The radius of the helix, or the T,arm or radius, is given by the following ... 

Also in 1950 Sakliarov and Tamm proposed an idea for a controlled thermonuclear fusion reactor, the TOKAMAK (acronym for the Russian phrase for toroidal chamber with magnetic coiF ), which achieved the highest ratio of output power to input power of any fusion device of the twentieth centuiy. This reactor grew out of interest in a controlled nuclear fusion reaction, since 1950. Sakharov first considered electrostatic confinement, but soon came to the idea of magnetic confinement. Tamm joined the effort with his work on particle motion in a magnetic field, including cyclotron motion, drifts, and magnetic surfaces. Sakharov and Tamm realized that... 

Valberg PA, Albertini DF (1985) Cytoplasmic motions, rheology, and structure probed by a novel magnetic particle method. J Cell Biol 101(1) 130-140... 

In the tensor formulation the difference between electric and magnetic fields disappears. What one observer interprets as an electric process another may regard as magnetic, although the actual particle motions that they predict will be identical12 [37]. 

The dynamic response of a magnetic particle subject to an applied field follows from the Gilbert equation of motion [7]... 

Transient turbidity is an optical technique for measuring the size of magnetic particles [63,64], It does this by aligning particles in an electric field, removing the field, and following their return to random orientation induced by Brownian motion. Their relaxation is measured by turbidity and this can be related to particle size distribution if assumptions are made... 

The fluid dynamic properties of continuous magnetic media, including liquid ferromagnetic media (ferrofluids), are described by the Navier-Stokes equations with the addition of terms describing the interaction with the magnetic field and are the subject of a considerable number of studies (for a review, see Ref. 1). The motion of discrete magnetic particles in a very... 

MECHANICS OF PARTICLE MOTION. The movement of a particle through a fluid requires an external force acting on the particle. This force may come from a density difference between the particle and the fluid or it may be the result of electric or magnetic fields. In this section only gravitational or centrifugal forces, which arise from density differences, will be considered. 

One can find the velocity veb, which corresponds to i + veb x. 6 = 0. It reduces the particle motion to = 0 x B, which is rotation around the magnetic field lines (Fig. 3-6). The frequency of this rotation is the so-called cyclotron frequency ... 

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