6 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…
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…
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…
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…