dorsal/arxiv
View SchemaEarly out-of-equilibrium beam-plasma evolution
| Authors | M. -C. Firpo, A. F. Lifschitz, E. Lefebvre, C. Deutsch |
|---|---|
| Categories | |
| ArXiv ID | physics/0602168 |
| URL | https://arxiv.org/abs/physics/0602168 |
| DOI | 10.1103/PhysRevLett.96.115004 |
Abstract
We solve analytically the out-of-equilibrium initial stage that follows the injection of a radially finite electron beam into a plasma at rest and test it against particle-in-cell simulations. For initial large beam edge gradients and not too large beam radius, compared to the electron skin depth, the electron beam is shown to evolve into a ring structure. For low enough transverse temperatures, the filamentation instability eventually proceeds and saturates when transverse isotropy is reached. The analysis accounts for the variety of very recent experimental beam transverse observations.
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"abstract": "We solve analytically the out-of-equilibrium initial stage that follows the\ninjection of a radially finite electron beam into a plasma at rest and test it\nagainst particle-in-cell simulations. For initial large beam edge gradients and\nnot too large beam radius, compared to the electron skin depth, the electron\nbeam is shown to evolve into a ring structure. For low enough transverse\ntemperatures, the filamentation instability eventually proceeds and saturates\nwhen transverse isotropy is reached. The analysis accounts for the variety of\nvery recent experimental beam transverse observations.",
"arxiv_id": "physics/0602168",
"authors": [
"M. -C. Firpo",
"A. F. Lifschitz",
"E. Lefebvre",
"C. Deutsch"
],
"categories": [
"physics.plasm-ph",
"physics.gen-ph"
],
"doi": "10.1103/PhysRevLett.96.115004",
"title": "Early out-of-equilibrium beam-plasma evolution",
"url": "https://arxiv.org/abs/physics/0602168"
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