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46 papers · 1 filter
Imposing quasineutrality on electrostatic plasmas via the Dirac theory of constraints
D. A. Kaltsas, J. W. Burby, P. J. Morrison +2
We present a method for imposing quasineutrality and, more generally, charge density conservation in the Vlasov-Poisson (VP) and Vlasov-Ampère (VA) systems, which describe electros…
Laser-driven ion acceleration in long-lived optically shaped gaseous targets enhanced by magnetic vortices
I. Tazes, S. Passalidis, G. Andrianaki +11
This research demonstrates high-repetition-rate laser-accelerated ion beams via dual, intersecting, counterpropagating laser-driven blast waves to precisely shape underdense gas in…
New axisymmetric equilibria with flow from an expansion about the generalized Solov'ev solution
A. I. Kuiroukidis, D. A. Kaltsas, G. N. Throumoulopoulos
We construct analytic solutions to the generalized Grad-Shafranov equation, which incorporates both toroidal and poloidal flows. This is achieved by adopting a general linearizing…
A similarity reduction of the generalized Grad-Shafranov equation
A. I. Kuiroukidis, D. A. Kaltsas, G. N. Throumoulopoulos
We extend previous work [Y. E. Litvinenko, Phys. Plasmas 17, 074502 (2010)] on a direct method for finding similarity reductions of partial differential equations such as the Grad-…
Axisymmetric hybrid Vlasov equilibria with applications to tokamak plasmas
D. A. Kaltsas, A. Kuiroukidis, P. J. Morrison +1
We derive axisymmetric equilibrium equations in the context of the hybrid Vlasov model with kinetic ions and massless fluid electrons, assuming isothermal electrons and deformed Ma…
Chaotic and integrable magnetic fields in one-dimensional hybrid Vlasov-Maxwell equilibria
Dimitrios A. Kaltsas, Philip J. Morrison, George N. Throumoulopoulos
In this paper, we develop a one-dimensional (1-D), quasineutral, hybrid Vlasov-Maxwell equilibrium model with kinetic ions and massless fluid electrons and derive associated soluti…