Fokker-Planck electron diffusion caused by an obliquely propagating electromagnetic wave packet of narrow bandwidth

Hizanidis, K

dc.contributor.author	Hizanidis, K	en
dc.date.accessioned	2014-03-01T01:39:37Z
dc.date.available	2014-03-01T01:39:37Z
dc.date.issued	1989	en
dc.identifier.issn	08998221	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/22902
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-5244302815&partnerID=40&md5=0679d2613ab29c17349e2a674876af8c	en
dc.title	Fokker-Planck electron diffusion caused by an obliquely propagating electromagnetic wave packet of narrow bandwidth	en
heal.type	journalArticle	en
heal.publicationDate	1989	en
heal.abstract	The relativistic motion of electrons in an intense electromagnetic wave packet propagating obliquely to a uniform magnetic field is analytically studied on the basis of the Fokker-Planck-Kolmogorov (FPK) approach. The wave packet consists of circularly polarized electron-cyclotron waves. The dynamical system in question is shown to be reducible to one with three degrees of freedom. Within the framework of the Hamiltonian analysis the nonlinear diffusion tensor is derived, and it is shown that this tensor can be separated into zeroth-, first-, and second-order parts with respect to the relative bandwidth. The zeroth-order part describes diffusive acceleration along lines of constant unperturbed Hamiltonian. The second-order part, which corresponds to the longest time scale, describes diffusion across those lines. A possible transport theory is outlined on the basis of this separation of the time scales. © 1989 American Institute of Physics.	en
heal.journalName	Physics of Fluids B	en
dc.identifier.volume	1	en
dc.identifier.issue	3	en
dc.identifier.spage	675	en
dc.identifier.epage	681	en