New exotic and non-standard radionuclides in AMS

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dc.contributor.authorWallner, Aen_AU
dc.contributor.authorBuczak, Ken_AU
dc.contributor.authorPlompen, Aen_AU
dc.contributor.authorSchumann, Den_AU
dc.contributor.authorSemkova, Ven_AU
dc.date.accessioned2012-04-17T06:06:12Zen_AU
dc.date.available2012-04-17T06:06:12Zen_AU
dc.date.issued2011-03-21en_AU
dc.date.statistics2012-04-17en_AU
dc.description.abstractIsobaric interference represents one of the major limitations in mass spectrometry. In the very few cases in AMS where nature allows isobaric-free measurements, lowest background levels are accessible. Such conditions are given, if the isobar does not form stable negative ions either as atomic ion, or by choosing a suitable molecular species; well-known examples are e.g. 14C−, 26Al−, 129I−, or 41CaH3 −, respectively, and also for the unstable isotopes in the mass range above Bi. In this work, we will present a few additional cases where isobaric interference is completely excluded, among them 55Fe, 68Ge and 202Pb. Applications will be discussed where the exceptional sensitivity of AMS offers important insights to such different fields like nuclear astrophysics, nuclear physics and general physics issues. VERA, a dedicated AMS facility, based on a 3-MV tandem, featuring high mass resolution in combination with efficient background suppression and an automated measurement procedure, allows to transport all nuclides from hydrogen to the actinides through the system up to the detector stations. Such a facility is well suited for developing the tuning and measurement procedures for new and non-standard isotopes. We will demonstrate the actual measurement limits of such radionuclides for the VERA facility and results for selected applications. In order to generate final values AMS usually relies on the parallel measurement of reference materials. We will discuss the production of such materials for these non-standard AMS nuclides.Copyright (c) 2011 AMS12.en_AU
dc.identifier.citationWallner, A., Buczak, K., Plompen, A., Schumann, D., Semkova, V., (2011). New exotic and non-standard radionuclides in AMS. Presentation to the 12th International Conference on Accelerator Mass Spectrometry (AMS 12), 20th - 25th March 2011. Museum of New Zealand: Te Papa Tongarewa, Wellington, New Zealand.en_AU
dc.identifier.conferenceenddate25 March 2011en_AU
dc.identifier.conferencename12th International Conference on Accelerator Mass Spectrometry (AMS 12)en_AU
dc.identifier.conferenceplaceWellington, New Zealanden_AU
dc.identifier.conferencestartdate20 March 2011en_AU
dc.identifier.govdoc4288en_AU
dc.identifier.urihttp://www.gns.cri.nz/ams12/ams12_programme.html#Scheduleen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4140en_AU
dc.language.isoenen_AU
dc.publisherGNS Scienceen_AU
dc.subjectRadioisotopesen_AU
dc.subjectAcceleratorsen_AU
dc.subjectMass spectroscopyen_AU
dc.subjectAtomic ionsen_AU
dc.subjectTandem electrostatic acceleratorsen_AU
dc.subjectNuclear physicsen_AU
dc.titleNew exotic and non-standard radionuclides in AMSen_AU
dc.typeConference Presentationen_AU
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