Eur. Phys. J. D (2014) 68: 260
https://doi.org/10.1140/epjd/e2014-50141-4

Regular Article

Resistive collimation of electron beams in relativistic and degenerate plasma

¹ Physics Department, University of Mazandaran, P.O. Box 47415-416, Babolsar, Iran
² Young Researchers Club, Sari Branch, Islamic Azad University, P.O. Box 48161-194, Sari, Iran

^a e-mail: f.khodadadi89@gmail.com

Received: 24 February 2014
Received in final form: 18 June 2014
Published online: 24 September 2014

Abstract

The purpose of this research is the study of the effects of plasma state and fiber on collimating relativistic electron beam in fast ignition. In this paper, for collimating relativistic electrons produced at the laser plasma interaction, a thin fiber of aluminum, lithium or CH either in the classical, degenerate or relativistic plasma states is considered. The fast electron beam could be collimated down to radii of 10 μm, in that case, the best results are achieved when there is a sharp transition in resistance. This ensures that the correct magnetic growth rate is used for hot electrons at different energy levels. Calculations show that the resistivity of the material surrounding the CH fiber in the degenerate plasma is smaller than that for classical and relativistic plasma.