The Open Plasma Physics Journal

2015, 8 : 23-32
Published online 2015 June 10. DOI: 10.2174/1876534301508010023
Publisher ID: TOPPJ-8-23

Non-Akhiezer-Polovin Model on Plasma Electrostatic Wave and Electron Beam

H. Lin
State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, P. O. Box 800-211, Shanghai 201800, China.

ABSTRACT

We study, beyond the well-known Akhiezer-Polovin model, plasma electrostatic wave and unmagnetized electron beam.Our investigation is based on a stricter theory in which a long-lasting misconception about zerotemperature fluid motion equation is removed. Our theory explains some authors' puzzle about why a narrowly focused (charged particles) beam is preserved in the presence of strong space charge forces. The interaction of such a unmagnetized charged particles beam with a plasma electrostatic wave is studied in details and some universal results are revealed. These exact information are crucial to accurate estimation of the quality of a plasma wakefield and hence its performance in acceleration.

Keywords:

PACS: 41.75.-i, 29.27.Bd, 29.27.Fh, 52.27.Jt, 52.35.-g, 52.35.Fp, 52.35.Mw, 52.35.Sb, 52.65.-y.