Search Results - "Hotchkis, M.A.C"

Accelerator Mass Spectrometry on SIRIUS: New 6 MV spectrometer at ANSTO by Wilcken, K.M., Fink, D., Hotchkis, M.A.C., Garton, D., Button, D., Mann, M., Kitchen, R., Hauser, T., O’Connor, A.

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Plutonium and other radionuclides persist across marine-to-terrestrial ecotopes in the Montebello Islands sixty years after nuclear tests by Johansen, M.P., Child, D.P., Cresswell, T., Harrison, J.J., Hotchkis, M.A.C., Howell, N.R., Johansen, A., Sdraulig, S., Thiruvoth, S., Young, E., Whiting, S.D.

“…Since the 1956 completion of nuclear testing at the Montebello Islands, Western Australia, this remote uninhabited island group has been relatively undisturbed…”
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Plutonium and uranium contamination in soils from former nuclear weapon test sites in Australia by Child, D.P., Hotchkis, M.A.C.

“…The British government performed a number of nuclear weapon tests on Australian territory from 1952 through to 1963 with the cooperation of the Australian…”
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Accumulation of plutonium in mammalian wildlife tissues following dispersal by accidental-release tests by Johansen, M.P., Child, D.P., Caffrey, E.A., Davis, E., Harrison, J.J., Hotchkis, M.A.C., Payne, T.E., Ikeda-Ohno, A., Thiruvoth, S., Twining, J.R., Beresford, N.A.

“…We examined the distribution of plutonium (Pu) in the tissues of mammalian wildlife inhabiting the relatively undisturbed, semi-arid former Taranaki weapons…”
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Measurement of fallout radionuclides, 239,240Pu and 137Cs, in soil and creek sediment: Sydney Basin, Australia by Smith, B.S., Child, D.P., Fierro, D., Harrison, J.J., Heijnis, H., Hotchkis, M.A.C., Johansen, M.P., Marx, S., Payne, T.E., Zawadzki, A.

“…Soil and sediment samples from the Sydney basin were measured to ascertain fallout radionuclide activity concentrations and atom ratios. Caesium-137 (137Cs)…”
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Ultra-low-level determination of 236U in IAEA marine reference materials by ICPMS and AMS by Lee, S.H., Povinec, P.P., Wyse, E., Hotchkis, M.A.C.

“…The development of analytical procedures for the measurement of ultra-low levels of 236U in marine samples using high-resolution inductively coupled plasma…”
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Scavenger hunt: Searching for the optimal target material for low-level 210Pb accelerator mass spectrometry by Froehlich, M.B., Slavkovská, Z., Koll, D., Pavetich, S., Dastgiri, F., Fifield, L.K., Hotchkis, M.A.C, Merchel, S., Tims, S.G., Wallner, A.

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Corrigendum to “Plutonium and other radionuclides persist across marine-to-terrestrial ecotopes in the Montebello Islands sixty years after nuclear tests” [Sci. Total Environ. Volume 691, 15 November 2019, pages 572–583] by Johansen, M.P., Child, D.P., Cresswell, T., Harrison, J.J., Hotchkis, M.A.C., Howell, N.R., Johansen, A., Sdraulig, S., Thiruvoth, S., Young, E., Whiting, S.D.

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Actinides AMS on the VEGA accelerator by Hotchkis, M.A.C., Child, D.P., Froehlich, M.B., Wallner, A., Wilcken, K., Williams, M.

“…The VEGA 1MV accelerator at ANSTO is designed to be a highly versatile AMS instrument. In this paper we focus on describing those aspects of the system that…”
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Accelerator Mass Spectrometry on SIRIUS: New 6MV spectrometer at ANSTO by Wilcken, K.M., Fink, D., Hotchkis, M.A.C., Garton, D., Button, D., Mann, M., Kitchen, R., Hauser, T., O’Connor, A.

“…The Centre for Accelerator Science at ANSTO operates four tandem accelerator systems for Accelerator Mass Spectrometry (AMS) and Ion Beam Analysis (IBA). The…”
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Actinides AMS for nuclear safeguards and related applications by Hotchkis, M.A.C., Child, D.P., Zorko, B.

“…The nuclear safeguards system which is used to monitor compliance with the Nuclear Non-proliferation Treaty relies to a significant degree on the analysis of…”
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Sulphur hexafluoride as a stripper gas for tandem accelerators by Hotchkis, M.A.C., Child, D., Fink, D., Garton, D., Levchenko, V., Wilcken, K.

“…•Sulphur hexafluoride is investigated as a stripper gas in tandem accelerators.•For heavy ions at low terminal voltage, mean charge states are found to be up…”
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14C in uranium and thorium minerals: a signature of cluster radioactivity? by Bonetti, R., Guglielmetti, A., Poli, G., Sacchi, E., Fink, D., Hotchkis, M.A.C., Jacobsen, G.E., Lawson, E.M., Hua, Q., Smith, A.M., Tuniz, C.

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Plutonium in wildlife and soils at the Maralinga legacy site: persistence over decadal time scales by Johansen, M.P., Child, D.P., Davis, E., Doering, C., Harrison, J.J., Hotchkis, M.A.C., Payne, T.E., Thiruvoth, S., Twining, J.R., Wood, M.D.

“…The mobility of plutonium (Pu) in soils, and its uptake into a range of wildlife, were examined using recent and ∼25 year old data from the Taranaki area of…”
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Investigation of gas stripping at 4.1MeV for high mass negative ions by Hotchkis, M.A.C., Child, D., Fink, D., Levchenko, V., Wallner, A.

“…We have used a tandem accelerator to measure charge state distributions at 4.1MeV for negative ions ranging from carbon to uranium oxide passing through the…”
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Ionisation efficiency improvements for AMS measurement of actinides by Child, D.P., Hotchkis, M.A.C., Whittle, K., Zorko, B.

“…Measurements of the isotopic ratios of plutonium and uranium are utilised by the safeguards community, environmental radioactivity and remediation studies,…”
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A fast switching electrostatic deflector system for actinide isotopic ratio measurements by Zorko, Benjamin, Child, D.P., Hotchkis, M.A.C.

“…We have implemented a fast switching electrostatic system on the actinides beamline on the ANTARES accelerator at ANSTO, to improve the precision of analyses…”
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High-sensitivity isobar-free AMS measurements and reference materials for 55Fe, 68Ge and 202gPb by Wallner, A., Bichler, M., Buczak, K., Fink, D., Forstner, O., Golser, R., Hotchkis, M.A.C., Klix, A., Krasa, A., Kutschera, W., Lederer, C., Plompen, A., Priller, A., Schumann, D., Semkova, V., Steier, P.

“…Isobaric interference represents one of the major limitations in mass spectrometry. For a few cases in AMS with tandem accelerators, isobaric interference is…”
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Sherlock Holmes counts the atoms by Tuniz, C., Zoppi, U., Hotchkis, M.A.C.

“…Modern forensic science has to deal not only with homicides and other traditional crimes but also with more global threats such as smuggling of nuclear…”
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AMS at ANTARES – The first 10 years by Lawson, E.M, Elliott, G, Fallon, J, Fink, D, Hotchkis, M.A.C, Hua, Q, Jacobsen, G.E, Lee, P, Smith, A.M, Tuniz, C, Zoppi, U

“…The status and capabilities of the ANTARES AMS facility after 10 years are reviewed. The common AMS radioisotopes, 10Be, 14C, 26Al, 36Cl and 129I, are…”
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