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dc.contributor.authorKoivisto, H.
dc.contributor.authorIkonen, A.
dc.contributor.authorKalvas, T.
dc.contributor.authorKosonen, S.
dc.contributor.authorKronholm, R.
dc.contributor.authorMarttinen, M.
dc.contributor.authorTarvainen, O.
dc.contributor.authorToivanen, V.
dc.date.accessioned2020-03-04T07:41:17Z
dc.date.available2020-03-04T07:41:17Z
dc.date.issued2020
dc.identifier.citationKoivisto, H., Ikonen, A., Kalvas, T., Kosonen, S., Kronholm, R., Marttinen, M., Tarvainen, O., & Toivanen, V. (2020). A new 18 GHz room temperature electron cyclotron resonance ion source for highly charged ion beams. <i>Review of Scientific Instruments</i>, <i>91</i>(2), Article 023303. <a href="https://doi.org/10.1063/1.5128860" target="_blank">https://doi.org/10.1063/1.5128860</a>
dc.identifier.otherCONVID_34538711
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/68052
dc.description.abstractAn innovative 18 GHz HIISI (Heavy Ion Ion Source Injector) room temperature Electron Cyclotron Resonance (ECR) ion source (ECRIS) has been designed and constructed at the Department of Physics, University of Jyväskylä (JYFL), for the nuclear physics program of the JYFL Accelerator Laboratory. The primary objective of HIISI is to increase the intensities of medium charge states (M/Q ≅ 5) by a factor of 10 in comparison with the JYFL 14 GHz ECRIS and to increase the maximum usable xenon charge state from 35+ to 44+ to serve the space electronics irradiation testing program. HIISI is equipped with a refrigerated permanent magnet hexapole and a noncylindrical plasma chamber to achieve very strong radial magnetic confinement with Brad = 1.42 T. The commissioning of HIISI began in Fall 2017, and in Spring 2019, it has met the main objectives. As an example, the intensity of the Xe27+ ion beam has improved from 20 μA to 230 μA. In addition, the beam intensity of the Xe44+ ion beam has exceeded the requirement set by the irradiation testing program. The performance of HIISI is comparable to superconducting ECR ion sources with the same maximum microwave frequency of 18 GHz and a total power of 3 kW. For example, Ar16+ and Xe30+ ion beam intensities of 130 μA and 106 μA, respectively, have been obtained with a total microwave power of 3 kW distributed between 18, 17.4, and 14.5 GHz frequencies. The ion beams have been extracted through an 8 mm plasma electrode aperture using 15–17 kV extraction voltage. The latest development work, extracted ion beam intensities, special features, and future prospects of HIISI are presented in this paper.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherAmerican Institute of Physics
dc.relation.ispartofseriesReview of Scientific Instruments
dc.rightsIn Copyright
dc.titleA new 18 GHz room temperature electron cyclotron resonance ion source for highly charged ion beams
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202003042274
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.oppiaineYdin- ja kiihdytinfysiikan huippuyksikköfi
dc.contributor.oppiaineKiihdytinlaboratoriofi
dc.contributor.oppiaineCentre of Excellence in Nuclear and Accelerator Based Physicsen
dc.contributor.oppiaineAccelerator Laboratoryen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn0034-6748
dc.relation.numberinseries2
dc.relation.volume91
dc.type.versionpublishedVersion
dc.rights.copyright© 2020 Author(s)
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber4000112736/14/NL/PA
dc.subject.ysotutkimuslaitteet
dc.subject.ysosyklotronit
dc.subject.ysohiukkaskiihdyttimet
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p2440
jyx.subject.urihttp://www.yso.fi/onto/yso/p15295
jyx.subject.urihttp://www.yso.fi/onto/yso/p14309
dc.rights.urlhttp://rightsstatements.org/page/InC/1.0/?language=en
dc.relation.doi10.1063/1.5128860
dc.relation.funderEuropean Space Agencyen
dc.relation.funderEuropean Space Agencyfi
jyx.fundinginformationThis project received funding from the Academy of Finland under the Finnish Centre of Excellence Programme 2012-2017 (Nuclear and Accelerator Based Physics Research at JYFL, Project No. 213503) and from the Academy of Finland under the infrastructure funding (Grant No. 273526). This work was also funded by the European Space Research and Technology Centre, European Space Agency, under ESA/GSTP ESTEC/Contract No. 4000112736/14/NL/PA.
dc.type.okmA1


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