The effect of a weakly tilted magnetic field perturbations on the equilibrium of a nonneutral plasma confined in a Malmberg-Penning trap is analyzed. A constraint (“condition of current closure”) is introduced, that in combination with the Poisson equation allows to select admissible plasma equilibria in the trap in the presence of a non-uniform and a non-axisymmetric magnetic field. Longitudinal plasma currents (analogous to the Pfirsch–Schlüter currents in Tokamaks) appearing in a nonneutral plasma even in the absence of magnetic drifts are explicitly computed in the case of a uniformly tilted magnetic field.
Effect of a weakly tilted magnetic field on the equilibrium of nonneutral plasmas in a Malmberg-Penning trap / M. Romé, I. Kotelnikov - In: Nonneutral plasma physics 7. : 9. international workshop on nonneutral plasmas, New York, New York, 16–20 June 2008 / [a cura di] J. R. Danielson, T. S. Pedersen. - Melville, NY : American institute of physics, 2009. - ISBN 978-0-7354-0651-3. - pp. 130-135 (( Intervento presentato al 9. convegno International workshop on non-neutral plasmas tenutosi a New York nel 2008 [10.1063/1.3122275].
Effect of a weakly tilted magnetic field on the equilibrium of nonneutral plasmas in a Malmberg-Penning trap
M. RoméPrimo
;
2009
Abstract
The effect of a weakly tilted magnetic field perturbations on the equilibrium of a nonneutral plasma confined in a Malmberg-Penning trap is analyzed. A constraint (“condition of current closure”) is introduced, that in combination with the Poisson equation allows to select admissible plasma equilibria in the trap in the presence of a non-uniform and a non-axisymmetric magnetic field. Longitudinal plasma currents (analogous to the Pfirsch–Schlüter currents in Tokamaks) appearing in a nonneutral plasma even in the absence of magnetic drifts are explicitly computed in the case of a uniformly tilted magnetic field.
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