Wecarry out a stability analysis of a relativistic nonlaminar electron beam which is experiencing the self-consistent plasma wake field excitation. This is done in overdense regime (i.e. plasma density much greater than beam density) in a cold plasma.Weadopt the self-consistent kinetic model for the plasma wake field excitation, that is based on the pair of Vlasov-Poisson-type equations. The latter governs the phase-space spatiotemporal evolution of the beam and its linearized form leads to a Landau-type approach to the beam stability analysis. Thereby, the analysis, performed for the case of a Gaussian electron beam distribution, shows the existence of the unstable modes for both cold and warm beams, respectively.
Kinetic theory of longitudinal stability analysis of a non-laminar electron beam in self-consistent plasma wake field excitation / Akhter, T.; Fedele, R.; De Nicola, S.; Jovanovic, D.; Fiore, G.. - In: PHYSICA SCRIPTA. - ISSN 0031-8949. - 97:6(2022), p. 065602. [10.1088/1402-4896/ac698c]
Kinetic theory of longitudinal stability analysis of a non-laminar electron beam in self-consistent plasma wake field excitation
Akhter T.;Fedele R.;Fiore G.
2022
Abstract
Wecarry out a stability analysis of a relativistic nonlaminar electron beam which is experiencing the self-consistent plasma wake field excitation. This is done in overdense regime (i.e. plasma density much greater than beam density) in a cold plasma.Weadopt the self-consistent kinetic model for the plasma wake field excitation, that is based on the pair of Vlasov-Poisson-type equations. The latter governs the phase-space spatiotemporal evolution of the beam and its linearized form leads to a Landau-type approach to the beam stability analysis. Thereby, the analysis, performed for the case of a Gaussian electron beam distribution, shows the existence of the unstable modes for both cold and warm beams, respectively.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.