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dc.contributor.authorTarvainen, Olli
dc.contributor.authorAngot, Julien
dc.contributor.authorIzotov, Ivan
dc.contributor.authorSkalyga, Vadim
dc.contributor.authorKoivisto, Hannu
dc.contributor.authorThuillier, Thomas
dc.contributor.authorKalvas, Taneli
dc.contributor.authorLamy, Thierry
dc.date.accessioned2017-09-27T09:50:56Z
dc.date.available2018-09-16T21:35:36Z
dc.date.issued2017
dc.identifier.citationTarvainen, O., Angot, J., Izotov, I., Skalyga, V., Koivisto, H., Thuillier, T., Kalvas, T., & Lamy, T. (2017). Plasma instabilities of a charge breeder ECRIS. <i>Plasma Sources Science and Technology</i>, <i>26</i>(10), Article 105002. <a href="https://doi.org/10.1088/1361-6595/aa8975" target="_blank">https://doi.org/10.1088/1361-6595/aa8975</a>
dc.identifier.otherCONVID_27198697
dc.identifier.otherTUTKAID_74871
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/55455
dc.description.abstractExperimental observation of plasma instabilities in a charge breeder electron cyclotron resonance ion source (CB-ECRIS) is reported. It is demonstrated that the injection of 133Cs+ or 85Rb+ ion beam into the oxygen discharge of the CB-ECRIS can trigger electron cyclotron instabilities, which restricts the parameter space available for the optimization of the charge breeding efficiency. It is concluded that the transition from a stable to unstable plasma regime is caused by gradual accumulation and ionization of Cs/Rb and simultaneous change of the discharge parameters in 10–100 ms time scale, not by a prompt interaction between the incident ion beam and the ECRIS plasma. The instabilities lead to loss of ion confinement, which results in the sputtering of the surfaces in contact with the plasma, followed by up to an order of magnitude increase of impurity currents in the extracted $n+$ ion beam.
dc.language.isoeng
dc.publisherIOP Publishing
dc.relation.ispartofseriesPlasma Sources Science and Technology
dc.subject.otherplasma instabilities
dc.subject.othercharge breeder
dc.titlePlasma instabilities of a charge breeder ECRIS
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201709273840
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.oppiaineKiihdytinlaboratoriofi
dc.contributor.oppiaineAccelerator Laboratoryen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2017-09-27T06:15:20Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.relation.issn0963-0252
dc.relation.numberinseries10
dc.relation.volume26
dc.type.versionacceptedVersion
dc.rights.copyright© 2017 IOP Publishing Ltd. This is a final draft version of an article whose final and definitive form has been published by IOP Publishing. Published in this repository with the kind permission of the publisher.
dc.rights.accesslevelopenAccessfi
dc.relation.doi10.1088/1361-6595/aa8975


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