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dc.contributor.authorIzotov, I.
dc.contributor.authorKalvas, Taneli
dc.contributor.authorKoivisto, Hannu
dc.contributor.authorKronholm, Risto
dc.contributor.authorMansfeld, D.
dc.contributor.authorSkalyga, V.
dc.contributor.authorTarvainen, Olli
dc.date.accessioned2017-04-27T06:53:07Z
dc.date.available2018-04-30T21:45:10Z
dc.date.issued2017
dc.identifier.citationIzotov, I., Kalvas, T., Koivisto, H., Kronholm, R., Mansfeld, D., Skalyga, V., & Tarvainen, O. (2017). Broadband microwave emission spectrum associated with kinetic instabilities in minimum-B ECR plasmas. <i>Physics of Plasmas</i>, <i>24</i>(4), Article 043515. <a href="https://doi.org/10.1063/1.4981387" target="_blank">https://doi.org/10.1063/1.4981387</a>
dc.identifier.otherCONVID_26976085
dc.identifier.otherTUTKAID_73631
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/53708
dc.description.abstractPlasmas of electron cyclotron resonance ion sources (ECRISs) are prone to kinetic instabilities due to the resonant heating mechanism resulting in anisotropic electron velocity distribution. Frequently observed periodic oscillations of extracted ion beam current in the case of high plasma heating power and/or strong magnetic field have been proven to be caused by cyclotrontype instabilities leading to a notable reduction and temporal variation of highly charged ion production. Thus, investigations of such instabilities and techniques for their suppression have become important topics in ECRIS research. The microwave emission caused by the instabilities contains information on the electron energy distribution and growth mechanism of the instability. The emission has been studied earlier in the frequency range of 8–14 GHz allowing us to deduce the probable excited mode. A more detailed study of the microwave emission spectrum of a minimum-B ECR plasma, sustained by 14 GHz microwave radiation, is presented in this work. It was found that the frequencies of the microwaves emitted by the plasma consist of several harmonics of the main band and extend from 6 GHz up to 25 GHz, being independent of the plasma parameters.
dc.language.isoeng
dc.publisherAmerican Institute of Physics
dc.relation.ispartofseriesPhysics of Plasmas
dc.subject.othermicrowave spectra
dc.subject.otherplasma instabilities
dc.subject.othermicrowave sourcesIon sources
dc.titleBroadband microwave emission spectrum associated with kinetic instabilities in minimum-B ECR plasmas
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201704262099
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2017-04-26T15:15:09Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.relation.issn1070-664X
dc.relation.numberinseries4
dc.relation.volume24
dc.type.versionpublishedVersion
dc.rights.copyright© the Authors 2017. Published by AIP Publishing. Published in this repository with the kind permission of the publisher.
dc.rights.accesslevelopenAccessfi
dc.subject.ysomagneettikentät
jyx.subject.urihttp://www.yso.fi/onto/yso/p19032
dc.relation.doi10.1063/1.4981387


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