Momentum Space Diffusion from Spatially Amplified Waves in a Plasma in a Magnetic Field

✍ Scribed by H. -R. Lehmann; R. Treumann

• Publisher: John Wiley and Sons
• Year: 1976
• Tongue: English
• Weight: 864 KB
• Volume: 16
• Category: Article
• ISSN: 0005-8025
• DOI: 10.1002/ctpp.19760160305

✦ Synopsis

Abstract

Quasilinear equations for relativistic plasmas in external magnetic fields are derived for the case of spatially growing wave turbulence. This generalizes the well‐known quasilinear approach to an amplifying relativistic plasma. The equations can be cast in condensed momentum‐space diffusive form. The diffusion tensor is given. As a result an inhomogeneity is produced in the space charge distribution giving rise to the development of a second‐order field‐aligned dc electric field. A general formula for the electrostatic potential is presented, which is specialised to the case of ion‐cyclotron turbulence. Here the field points out of the interaction region.