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dc.contributor.authorSkalyga, V.
dc.contributor.authorIzotov, I.
dc.contributor.authorGolubev, S.
dc.contributor.authorSidorov, A.
dc.contributor.authorRazin, S.
dc.contributor.authorVodopyanov, A.
dc.contributor.authorTarvainen, Olli
dc.contributor.authorKoivisto, Hannu
dc.contributor.authorKalvas, Taneli
dc.date.accessioned2016-01-27T09:21:37Z
dc.date.available2016-01-27T09:21:37Z
dc.date.issued2016
dc.identifier.citationSkalyga, V., Izotov, I., Golubev, S., Sidorov, A., Razin, S., Vodopyanov, A., Tarvainen, O., Koivisto, H., & Kalvas, T. (2016). New progress of high current gasdynamic ion source (invited). <i>Review of Scientific Instruments</i>, <i>87</i>(2), Article 02A716. <a href="https://doi.org/10.1063/1.4934213" target="_blank">https://doi.org/10.1063/1.4934213</a>
dc.identifier.otherCONVID_25287927
dc.identifier.otherTUTKAID_67750
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/48480
dc.description.abstractThe experimental and theoretical research carried out at the Institute of Applied Physics resulted in development of a new type of electron cyclotron resonance ion sources (ECRISs)—the gasdynamic ECRIS. The gasdynamic ECRIS features a confinement mechanism in a magnetic trap that is different from Geller’s ECRIS confinement, i.e., the quasi-gasdynamic one similar to that in fusion mirror traps. Experimental studies of gasdynamic ECRIS were performed at Simple Mirror Ion Source (SMIS) 37 facility. The plasma was created by 37.5 and 75 GHz gyrotron radiation with power up to 100 kW. High frequency microwaves allowed to create and sustain plasma with significant density (up to 8 × 1013 cm−3 ) and to maintain the main advantages of conventional ECRIS such as high ionization degree and low ion energy. Reaching such high plasma density relies on the fact that the critical density grows with the microwave frequency squared. High microwave power provided the average electron energy on a level of 50-300 eV enough for efficient ionization even at neutral gas pressure range of 10−4–10−3 mbar. Gasdynamic ECRIS has demonstrated a good performance producing high current (100-300 mA) multi-charged ion beams with moderate average charge (Z = 4-5 for argon). Gasdynamic ECRIS has appeared to be especially effective in low emittance hydrogen and deuterium beams formation. Proton beams with current up to 500 emA and RMS emittance below 0.07 π·mm·mrad have been demonstrated in recent experiments.
dc.language.isoeng
dc.publisherAmerican Institute of Physics
dc.relation.ispartofseriesReview of Scientific Instruments
dc.subject.otherelectron cyclotron resonance ion sources
dc.subject.othergasdynamic ECRIS
dc.subject.otherion beams
dc.titleNew progress of high current gasdynamic ion source (invited)
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201601201182
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.updated2016-01-20T10:15:25Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.relation.issn0034-6748
dc.relation.numberinseries2
dc.relation.volume87
dc.type.versionpublishedVersion
dc.rights.copyright© 2015 AIP Publishing LLC. Published in this repository with the kind permission of the publisher.
dc.rights.accesslevelopenAccessfi
dc.relation.doi10.1063/1.4934213


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