Measurements of 59Ni in meteorites by accelerator mass spectrometry

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dc.contributor.authorPaul, Men_AU
dc.contributor.authorFifield, LKen_AU
dc.contributor.authorFink, Den_AU
dc.contributor.authorAlbrecht, Aen_AU
dc.contributor.authorAllan, GLen_AU
dc.contributor.authorHerzog, GFen_AU
dc.contributor.authorTuniz, Cen_AU
dc.date.accessioned2021-10-27T23:39:31Zen_AU
dc.date.available2021-10-27T23:39:31Zen_AU
dc.date.issued1993-10-01en_AU
dc.date.statistics2021-10-19en_AU
dc.description.abstractIsotopic abundances of the radionuclide 59Ni (T12 = 76000 yr) were measured by accelerator mass spectrometry with the 14UD Pelletron tandem accelerator at the Australian National University and a detection system solely based on a multianode ionization chamber. The sensitivity limit in the measurement of 59Ni isotopic abundances is 5 × 10−13, as determined by residual interferences from isobaric 59Co and isotopic 58Ni ions. Cosmogenic 59Ni abundances 59NiNi = (8–20) × 10−12 were measured in four samples prepared from the metal phase of two meteorites (mesosiderites). The ratio of the 59Ni abundances to those measured for 41Ca in the silicate phase of the same samples, is in fair agreement with the ratio of the production rates via thermal-neutron capture on 58Ni and 40Ca. © 1993 Published by Elsevier B.V.en_AU
dc.identifier.citationPaul, M., Fifield, L. K., Fink, D., Albrecht, A., Allan, G. L., Herzog, G., & Tuniz, C. (1993). Measurements of 59Ni in meteorites by accelerator mass spectrometry. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 83(1–2), 275-283. doi:10.1016/0168-583X(93)95938-2en_AU
dc.identifier.issn0168-583Xen_AU
dc.identifier.issue1-2en_AU
dc.identifier.journaltitleNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atomsen_AU
dc.identifier.pagination275-283en_AU
dc.identifier.urihttps://doi.org/10.1016/0168-583X(93)95938-2en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12152en_AU
dc.identifier.volume83en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectRadioisotopesen_AU
dc.subjectMass spectroscopyen_AU
dc.subjectIonization chambersen_AU
dc.subjectNickelen_AU
dc.subjectSilcatesen_AU
dc.subjectThermal neutronsen_AU
dc.titleMeasurements of 59Ni in meteorites by accelerator mass spectrometryen_AU
dc.typeJournal Articleen_AU
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