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[{"key": "dc.contributor.advisor", "value": "Eronen, Tommi", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Takkinen, Antti", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2018-06-06T06:10:55Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2018-06-06T06:10:55Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2018", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/58368", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Moniheijastava lentoaikamassaerotin (engl. Multi-Reflection time-of-flight mass separator) on korkearesoluutioinen ionien massojen erotteluun ja mittaamiseen k\u00e4ytett\u00e4v\u00e4 laitteisto, jollaisen rakentaminen aloitettiin syksyll\u00e4 2016 kiihdytinlaboratorion IGISOL-ryhm\u00e4ss\u00e4. T\u00e4ss\u00e4 tutkielmassa kartoitettiin laitteistoon liitett\u00e4vien MagneTOF ioni-ilmaisimen ja Bradbury-Nielsen -ioniportin toimintaa. Ilmaisinta k\u00e4ytet\u00e4\u00e4n laitteistolla eroteltavien io\\-nien havaitsemiseen ja ioniportin avulla kiinnostuksen kohteena olevat ionit voidaan erotella muista hiukkasista. Tyhji\u00f6kammioon rakennettiin koeasetelma, jolla voitiin testata sek\u00e4 ioniportin ett\u00e4 MagneTOF-ilmaisimen toimintaa k\u00e4ytt\u00e4en samanaikaisesti tuotettuja kalium, rubidium, ja cesium ioneja. Ilmaisimen valmistajan ohjeistamat mittaukset sopivan k\u00e4ytt\u00f6j\u00e4nnitteen m\u00e4\u00e4ritt\u00e4miseksi suoritettiin onnistuneesti ja ilmaisimesta saatu signaali vastasi hyvin odotuksia. Ioniportin ominaisuuksia tutkittiin vertailemalla mitattuja ioni\\-en lentoaikoja laskennallisesti m\u00e4\u00e4ritettyihin. My\u00f6s aikaa, joka tarvitaan portin t\u00e4ysin avaamiseen ja sulkemiseen, tutkittiin.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Multi-reflection time-of-flight mass-separator (MR-TOF-MS) is a high resolution ion mass separator and measuring device. Construction of such a device began in 2016 at IGISOL facility in the accelerator laboratory of University of Jyv\u00e4skyl\u00e4. This thesis explored the operation of the MagneTOF ion detector and Bradbury-Nielsen ion gate, both of which will be integral part of the device. An off-line test setup was built to test both the ion gate and the MagneTOF detector using a potassium-rubidium-caesium surface ion source. Appropriate operating voltages for the detector were successfully determined and the output signal from the detector responded well to expectations. Ion gate characteristics were studied by comparing the measured time-of-flight for ions with calculated values. Also, the minimum time in which the gate can be switched from fully closed mode to fully open, and vice versa was determined.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2018-06-06T06:10:55Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2018-06-06T06:10:55Z (GMT). No. of bitstreams: 0\n Previous issue date: 2018", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "41", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "eng", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "IGISOL", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "MR-TOF", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "MagneTOF", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Bradbury-Nielsen gate", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Characterization of MagneTOF ion detector and Bradbury-Nielsen ion gate", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201806063022", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Fysiikan laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Physics", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Fysiikka", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Physics", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4021", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "fysiikka", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "physics", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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