| Numéro |
J. Phys. IV France
Volume 133, June 2006
|
|
|---|---|---|
| Page(s) | 283 - 287 | |
| DOI | https://doi.org/10.1051/jp4:2006133056 | |
| Publié en ligne | 16 juin 2006 | |
Inertial Fusion Sciences and Applications 2005
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 283-287
DOI: 10.1051/jp4:2006133056
1 ETSI Industriales, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
2 Laboratoire de Physique et de Technologie des Plasmas, CNRS-UMR 7648, École Polytechnique, 91128 Palaiseau Cedex, France
3 Laboratoire de Physique des Gaz et des Plasmas, CNRS-UMR 8578, Université Paris XI, Bâtiment 210, 91405 Orsay Cedex, France
© EDP Sciences 2006
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 283-287
DOI: 10.1051/jp4:2006133056
Characterization of the initial filamentation of a relativistic electron beam passing through a plasma
A. Bret1, M.-C. Firpo2 and C. Deutsch31 ETSI Industriales, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
2 Laboratoire de Physique et de Technologie des Plasmas, CNRS-UMR 7648, École Polytechnique, 91128 Palaiseau Cedex, France
3 Laboratoire de Physique des Gaz et des Plasmas, CNRS-UMR 8578, Université Paris XI, Bâtiment 210, 91405 Orsay Cedex, France
Abstract
We study the linear instabilities experienced by a relativistic
electron beam passing through a plasma. We consider unstable modes
for wave vectors arbitrarily oriented, treating the full
electromagnetic dispersion equation. Using some simple waterbag
distribution to model non-relativistic temperatures, we can single
out the role of transverse and parallel beam and plasma
temperatures. It is found that the maximum growth rate is found
for an oblique wave vector, the corresponding unstable mode being
almost unsensitive to any kind of non-relativistic temperature.
© EDP Sciences 2006