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dc.contributor.authorDickel, T.
dc.contributor.authorPlaß, W.R.
dc.contributor.authorAndres, S. Ayet San
dc.contributor.authorEbert, J.
dc.contributor.authorGeissel, H.
dc.contributor.authorHaettner, E.
dc.contributor.authorHornung, C.
dc.contributor.authorMiskun, I.
dc.contributor.authorPietri, S.
dc.contributor.authorPurushothaman, S.
dc.contributor.authorReiter, M.P.
dc.contributor.authorRink, A.-K.
dc.contributor.authorScheidenberger, C.
dc.contributor.authorWeick, H.
dc.contributor.authorDendooven, P.
dc.contributor.authorDiwisch, M.
dc.contributor.authorGreiner, F.
dc.contributor.authorHeiße, F.
dc.contributor.authorKnöbel, R.
dc.contributor.authorLippert, W.
dc.contributor.authorMoore, Iain
dc.contributor.authorPohjalainen, Ilkka
dc.contributor.authorProchazka, A.
dc.contributor.authorRanjan, M.
dc.contributor.authorTakechi, M.
dc.contributor.authorWinfield, J.S.
dc.contributor.authorXu, X.
dc.date.accessioned2015-08-24T04:57:12Z
dc.date.available2015-08-24T04:57:12Z
dc.date.issued2015
dc.identifier.citationDickel, T., Plaß, W., Andres, S., Ebert, J., Geissel, H., Haettner, E., . . . Xu, X. (2015). First spatial separation of a heavy ion isomeric beam with a multiple-reflection time-of-flight mass spectrometer. <em>Physics Letters B</em>, 744, 137-141. <a href="http://dx.doi.org/10.1016/j.physletb.2015.03.047">doi:10.1016/j.physletb.2015.03.047</a>
dc.identifier.otherTUTKAID_65927
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/46683
dc.description.abstract211Po ions in the ground and isomeric states were produced via 238U projectile fragmentation at 1000 MeV/u. The 211Po ions were spatially separated in flight from the primary beam and other reaction products by the fragment separator FRS. The ions were energy-bunched, slowed-down and thermalized in a gas-filled cryogenic stopping cell (CSC). They were then extracted from the CSC and injected into a highresolution multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS). The excitation energy of the isomer and, for the first time, the isomeric-to-ground state ratio were determined from the measured mass spectrum. In the subsequent experimental step, the isomers were spatially separated from the ions in the ground state by an ion deflector and finally collected with a silicon detector for decay spectroscopy. This pioneering experimental result opens up unique perspectives for isomer-resolved studies. With this versatile experimental method new isomers with half-lives longer than a few milliseconds can be discovered and their decay properties can be measured with highest sensitivity and selectivity. These experiments can be extended to studies with isomeric beams in nuclear reactions.
dc.language.isoeng
dc.publisherElsevier BV * North-Holland
dc.relation.ispartofseriesPhysics Letters B
dc.subject.other211Po ions
dc.subject.otherExcitation energy
dc.subject.otherIsomer
dc.subject.otherIsomeric beam
dc.subject.otherIsomeric ratio
dc.subject.otherIsotope separation in flight
dc.subject.otherMultiple-reflection time-of-flight mass spectrometer
dc.subject.otherSpatial isomer separation
dc.titleFirst spatial separation of a heavy ion isomeric beam with a multiple-reflection time-of-flight mass spectrometer
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201508212721
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.oppiaineFysiikka
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2015-08-21T09:15:04Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange137-141
dc.relation.issn0370-2693
dc.relation.numberinseries0
dc.relation.volume744
dc.type.versionpublishedVersion
dc.rights.copyright© 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license. Funded by SCOAP3.
dc.rights.accesslevelopenAccessfi
dc.rights.urlhttp://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1016/j.physletb.2015.03.047


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© 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license. Funded by SCOAP3.
Except where otherwise noted, this item's license is described as © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license. Funded by SCOAP3.