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dc.contributor.authorCairns, R Alan
dc.contributor.authorVorgul, I.
dc.contributor.authorBingham, Robert
dc.contributor.authorRonald, K.
dc.contributor.authorSpeirs, D. C.
dc.contributor.authorMcConville, S. L.
dc.contributor.authorGillespie, K. M.
dc.contributor.authorBryson, R.
dc.contributor.authorPhelps, A. D. R.
dc.contributor.authorKellett, B. J.
dc.contributor.authorCross, A. W.
dc.contributor.authorRoberston, C. W.
dc.contributor.authorWhyte, C. G.
dc.contributor.authorHe, W.
dc.identifier.citationCairns , R A , Vorgul , I , Bingham , R , Ronald , K , Speirs , D C , McConville , S L , Gillespie , K M , Bryson , R , Phelps , A D R , Kellett , B J , Cross , A W , Roberston , C W , Whyte , C G & He , W 2011 , ' Cyclotron maser radiation from inhomogeneous plasmas ' , Physics of Plasmas , vol. 18 , no. 2 , 022902 .
dc.identifier.otherPURE: 17781463
dc.identifier.otherPURE UUID: bd6b3baf-51a7-4d90-b1fc-d337eb27f056
dc.identifier.otherWOS: 000287812900039
dc.identifier.otherScopus: 79952150981
dc.description.abstractCyclotron maser instabilities are important in space, astrophysical, and laboratory plasmas. While extensive work has been done on these instabilities, most of it deals with homogeneous plasmas with uniform magnetic fields while in practice, of course, the systems are generally inhomogeneous. Here we expand on our previous work [R. A. Cairns, I. Vorgul, and R. Bingham, Phys. Rev. Lett. 101, 215003 (2008)] in which we showed that localized regions of instability can exist in an inhomogeneous plasma and that the way in which waves propagate away from this region is not necessarily obvious from the homogeneous plasma dispersion relation. While we consider only a simple ring distribution in velocity space, because of its tractability, the ideas may point toward understanding the behavior in the presence of more realistic distributions. The main object of the present work is to move away from consideration of the local dispersion relation and show how global growing eigenmodes can be constructed.
dc.relation.ispartofPhysics of Plasmasen
dc.rightsCopyright 2011, American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Physics of Plasmas, Vol 18, Issue 2, and may be found at:
dc.subjectPlasma wavesen
dc.subjectMagnetic fieldsen
dc.subjectCyclotron resonancesen
dc.subjectDispersion relationsen
dc.subjectPlasma instabilitesen
dc.titleCyclotron maser radiation from inhomogeneous plasmasen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. Applied Mathematicsen
dc.description.statusPeer revieweden

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