14 citations · 67 across the 14 of their papers we have counts for
14 papers
Ion Mix Can Invert Centrifugal Confinement
E. J. Kolmes, I. E. Ochs, N. J. Fisch
Centrifugal plasma traps, in which plasma is confined partly by centrifugal forces, represent a possible path to fusion energy production. In centrifugal plasma traps, electric fie…
Efficiency and Physical Limitations of Adiabatic Direct Energy Conversion in Axisymmetric Fields
J. -M. Rax, E. J. Kolmes, N. J. Fisch
We describe and analyze a new class of direct energy conversion schemes based on the adiabatic magnetic drift of charged particles in axisymmetric magnetic fields. The efficiency o…
Coriolis Forces Modify Magnetostatic Ponderomotive Potentials
E. J. Kolmes, N. J. Fisch
It is possible to produce a ponderomotive effect in a plasma system without time-varying fields, if the plasma flows over spatial oscillations in the field. This can be achieved by…
Flowing plasma rearrangement in the presence of static perturbing fields
T. Rubin, I. E. Ochs, N. J. Fisch
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…
Upper and Lower Bounds on Phase-Space Rearrangements
E. J. Kolmes, N. J. Fisch
Broad classes of plasma phenomena can be understood in terms of phase-space rearrangements. For example, the net effect of a wave-particle interaction may consist of moving populat…
Drift-Energy Replacement Effect in Multi-Ion Magnetized Plasmas
M. E. Mlodik, E. J. Kolmes, N. J. Fisch
Fast rotation can improve the stability and confinement of fusion plasmas. However, to maintain a rapidly rotating fusion plasma in steady state, significant energy must be investe…
Plasma potential shaping using end-electrodes in the Large Plasma Device
R. Gueroult, S. K. P. Tripathi, F. Gaboriau +2
We perform experiments in the Large Plasma Device (LAPD) at the University of California, Los Angeles, studying how different end-electrode biasing schemes modify the radial potent…
Rotating Alfvén waves in rotating plasmas
J. -M. Rax, R. Gueroult, N. J. Fisch
Angular momentum coupling between a rotating magnetized plasma and torsional Alfvén waves carrying orbital angular momentum (OAM) is examined. It is not only demonstrated that rota…
Quasilinear theory of Brillouin resonances in rotating magnetized plasmas
J. -M. Rax, R. Gueroult, N. J. Fisch
Both spin and orbital angular momentum can be exchanged between a rotating wave and a rotating magnetized plasma. Through resonances the spin and orbital angular momentum of the wa…
Magnetostatic Ponderomotive Potential in Rotating Plasma
T. Rubin, J. M. Rax, N. J. Fisch
A new end-plugging method for rotating plasmas is identified and analyzed. It uses the ponderomotive potential associated with an azimuthal magnetostatic wiggler. Studied both anal…
Extending the Single-Fluid Solvability Conditions for More General Plasma Systems
E. J. Kolmes, M. E. Mlodik, N. J. Fisch
We extend the single-fluid solvability conditions to include plasma systems at arbitrary with arbitrary flows and external forcing terms. This treatment includes both the isotr…
Sensitivity of synchrotron radiation to the superthermal electron population in mildly relativistic plasma
M. E. Mlodik, V. R. Munirov, T. Rubin +1
Synchrotron radiation has markedly different behavior in and in plasma. We show that high-energy electrons which occupy the tail of v…
Partial-Ionization Deconfinement Effect in Magnetized Plasma
M. E. Mlodik, E. J. Kolmes, I. E. Ochs +2
In partially ionized plasma, where ions can be in different ionization states, each charge state can be described as a different fluid for the purpose of multi-ion collisional tran…
Trace Impurity Transport in Multi-Species Plasmas with Large Particle Fluxes
E. Litvinova Mitra, E. J. Kolmes, I. E. Ochs +3
A burning fusion plasma has a large inwards flux of fuel and outwards flux of ash. Existing impurity transport theories do not account for a steady-state environment of such large…