Increasing the Efficiency of Plasma Mass Separation by Optimizing the Electric Potential

Oiler, A. P.; Usmanov, R. A.; Antonov, N. N.; Gavrikov, A. V.; Smirnov, V. P.

doi:10.1134/s1063780x24600579

Plasma Phys. Rep.

2024

DOI: 10.1134/s1063780x24600579

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Increasing the Efficiency of Plasma Mass Separation by Optimizing the Electric Potential

A. P. Oiler,

R. A. Usmanov,

N. N. Antonov

et al.

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Flowing plasma rearrangement in the presence of static perturbing fields

Rubin,

Ochs,

Fisch

2024

Physics of Plasmas

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Charged particles interacting with electromagnetic waves have a portion of their energy tied up in wave-driven oscillations. When these waves are localized to the exhaust of linear magnetic confinement systems, this ponderomotive effect can be utilized to enhance particle confinement. The same effect can be derived for particles moving via an E×B drift into a region of a static perturbation to the electromagnetic fields which has a large wave vector component in the direction of the motion. In this work, we use a simplified slab model to self-consistently solve for the electromagnetic fields within the fluid flowing plasma of a static flute-like (k∥=0) perturbation and evaluate the resulting ponderomotive potential. We find that two types of perturbations can exist within the flowing plasma, which are an O wave and an X wave in the frame moving with the fluid. In the case of tenuous plasma, these perturbations are magnetostatic or electrostatic multipole-analog perpendicular to the guiding magnetic field in the lab frame, respectfully. For denser plasmas, the O wave-like perturbation is screened at the electron skin depth scale, and the X wave-like perturbation is a combination of a similar perpendicular electric perturbation and parallel magnetic perturbation. The ponderomotive potential generated in the X wave-like case is gyrofrequency-dependent and can be used as either potential barriers or potential wells, depending on the direction of the flow velocity.

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Flowing plasma rearrangement in the presence of static perturbing fields

Rubin,

Ochs,

Fisch

2024

Physics of Plasmas

View full text Add to dashboard Cite

show abstract

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Increasing the Efficiency of Plasma Mass Separation by Optimizing the Electric Potential

Cited by 1 publication

References 24 publications

Flowing plasma rearrangement in the presence of static perturbing fields

Flowing plasma rearrangement in the presence of static perturbing fields

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