Associate Professor Stephen Tims
Areas of expertise
- Synchrotrons; Accelerators; Instruments And Techniques 029904
- Glaciology 040602
- Environmental Rehabilitation (Excl. Bioremediation) 050207
- Archaeological Science 210102
- Geochronology 040303
- Environmental Impact Assessment 050204
- Environmental Monitoring 050206
- Geomorphology And Regolith And Landscape Evolution 040601
- Land Capability And Soil Degradation 050302
- Isotope Geochemistry 040203
- Environmental Chemistry (Incl. Atmospheric Chemistry) 039901
- Stellar Astronomy And Planetary Systems 020110
- Nuclear Physics 020202
- Surface Processes 040607
- Climate Change Processes 040104
- Atmospheric Radiation 040103
- Analytical Spectrometry 030101
Publications
- Negri, A, Arazi, A, Fernandez Niello, J et al. 2022, '129I in rainwater across Argentina', Journal of Environmental Radioactivity, vol. 248.
- Koll, D, Wallner, A, Battisson, S et al. 2022, 'Element separation chemistry and cosmogenic 10Be dating of a ferromanganese crust', Nuclear Instruments and Methods in Physics Research: Section B, vol. 530, pp. 53-58.
- Dowling, L, Eaves, S, Norton, K et al. 2021, 'Local summer insolation and greenhouse gas forcing drove warming and glacier retreat in New Zealand during the Holocene', Quaternary Science Reviews, vol. 266, pp. 1-15.
- Wallner, A, Feige, J, Fifield, L et al. 2020, '60Fe deposition during the late Pleistocene and the Holocene echoes past supernova activity', PNAS - Proceedings of the National Academy of Sciences of the United States of America, vol. 117, no. 36, pp. 21873-21879.
- Lal, R, Fifield, L, Tims, S et al. 2020, 'A study of soil erosion rates using Pu-239, in the wet-dry tropics of northern Australia', Journal of Environmental Radioactivity, vol. 211, no. 0.
- Dittmann, B, Buompane, R, Chamizo, E et al. 2019, 'ColPuS, a new multi-isotope plutonium standard for Accelerator Mass Spectrometry', Nuclear Instruments and Methods in Physics Research: Section B, vol. 438, pp. 189-192.
- Pavetich, S, Carey Hulyer, A, Fifield, L et al. 2019, '93Zr developments at the Heavy Ion Accelerator Facility at ANU', Nuclear Instruments and Methods in Physics Research: Section B, vol. 438, pp. 77-83.
- Martschini, M, Fifield, L, Froehlich, M et al. 2019, 'New and upgraded ionization chambers for AMS at the Australian National University', Nuclear Instruments and Methods in Physics Research: Section B, vol. 438, pp. 141-147.
- Medley, P, Tims, S, Froehlich, M et al. 2019, 'Development of 231Pa AMS measurements to improve radiological dose assessment from uranium mining and milling', Nuclear Instruments and Methods in Physics Research: Section B, vol. 438, pp. 66-69.
- Froehlich, M, Akber, A, McNeil, S et al. 2019, 'Anthropogenic 236U and Pu at remote sites of the South Pacific', Journal of Environmental Radioactivity, vol. 205-206, pp. 17-23.
- Huang, Y, Tims, S, Froehlich, M et al. 2019, 'The 240Pu/239Pu atom ratio in Chinese soils', Science of the Total Environment, vol. 678, pp. 603-610.
- Pavetich, S, Wallner, A, Martschini, M et al 2019, 'Accelerator mass spectrometry measurement of the reaction Cl-35 (n,g) Cl-36 at keV energies', Physical Review C: Nuclear Physics, vol. 99, no. 1, pp. -.
- Eaves, S, Collins, J, Jones, R et al. 2018, 'Further constraint of the in situ cosmogenic 10Be production rate in pyroxene and a viability test for late Quaternary exposure dating', Quaternary Geochronology, vol. 48, pp. 121-132.
- Feige, J, Wallner, A, Altmeyer, R et al. 2018, 'Limits on Supernova-Associated Fe 60/Al 26 Nucleosynthesis Ratios from Accelerator Mass Spectrometry Measurements of Deep-Sea Sediments', Physical Review Letters, vol. 121, no. 22, pp. 1-6.
- Feige, J, Breitschwerdt, D, Wallner, A et al. 2017, 'The Link Between the Local Bubble and Radioisotopic Signatures on Earth', 14th International Symposium on the Nuclei in the Cosmos NIC-XIV (NIC2016), Japan Physical Society, Japan, pp. 1-4.
- Froehlich, M, Tims, S, Fallon, S et al. 2017, 'Nuclear weapons produced 236U, 239Pu and 240Pu archived in a Porites Lutea coral from Enewetak Atoll', Journal of Environmental Radioactivity, vol. Article In Press, pp. 1-5pp.
- Wendel, C, Lind, O, Fifield, L et al. 2017, 'No Fukushima Dai-ichi derived plutonium signal in marine sediments collected 1.5?57 km from the reactors', Applied Radiation and Isotopes, vol. 129, pp. 180-184.
- Lal, R, Fifield, L, Tims, S et al. 2017, '239Pu fallout across continental Australia: Implications on 239Pu use as a soil tracer', Journal of Environmental Radioactivity, vol. 178-179, pp. 394-403.
- Pittauerova, D, Tims, S, Froehlich, M et al 2017, 'Continuous transport of Pacific-derived anthropogenic radionuclides towards the Indian Ocean', Scientific Reports, vol. 7, pp. 1-8pp.
- Wallner, A, Fifield, L, Tims, S et al. 2016, 'Recent near-Earth supernovae probed by global deposition of interstellar radioactive Fe-60', Nature, vol. 532, no. 7597, pp. 69-72.
- Froehlich, M, Chan, W, Tims, S et al. 2016, 'Time-resolved record of U-236 and Pu-239,Pu-240 isotopes from a coral growing during the nuclear testing program at Enewetak Atoll (Marshall Islands)', Journal of Environmental Radioactivity, vol. 165, pp. 197-205.
- Tims, S, Froehlich, M, Fifield, L et al. 2016, 'U-236 and Pu-239,Pu-240 ratios from soils around an Australian nuclear weapons test site', Journal of Environmental Radioactivity, vol. 151, no. -, pp. 563-567.
- Froehlich, M, Dietze, M, Tims, S et al 2015, 'A comparison of fallout 236U and 239Pu uptake by Australian vegetation', Journal of Environmental Radioactivity, vol. Published Online 30 June 2015.
- Lal, R, Fifield, L, Tims, S et al. 2015, 'Using 239Pu as a tracer for fine sediment sources in the Daly River, Northern Australia', Heavy-Ion Accelerator Symposium, HIAS 2014, ed. M.Lee B.Q.Simenel C., EDP Sciences, TBC, pp. 1-7.
- De Cesare, M, Tims, S & Fifield, L 2015, 'Uranium comparison by means of AMS and ICP-MS and Pu and 137Cs results around an Italian nuclear power plant', Heavy-Ion Accelerator Symposium, HIAS 2014, ed. M.Lee B.Q.Simenel C., EDP Sciences, TBC.
- Wallner, A, Bichler, M, Buczak, K et al. 2015, 'Settling the Half-Life of Fe-60: Fundamental for a Versatile Astrophysical Chronometer', Physical Review Letters, vol. 114, no. 4.
- Mayer, K, Wallenius, M, Lutzenkirchen, K et al. 2015, 'Uranium from German Nuclear Power Projects of the 1940s A Nuclear Forensic Investigation', Angewandte Chemie International Edition, vol. 54, no. 45, pp. 13452-13456.
- Croke, J, Bartley, R, Chappell, J et al. 2015, 'Be-10-derived denudation rates from the Burdekin catchment: The largest contributor of sediment to the Great Barrier Reef', Geomorphology, vol. 241, pp. 122-134.
- Dittmann, B, Dunai, T, Dewald, A et al. 2015, 'Preparation of a multi-isotope plutonium AMS standard and preliminary results of a first inter-lab comparison', Nuclear Instruments and Methods in Physics Research: Section B, vol. 361, no. 2015, pp. 327-331.
- Buompane, R, De Cesare, M, De Cesare, N et al. 2015, 'Background reduction in U-236/U-238 measurements', Nuclear Instruments and Methods in Physics Research: Section B, vol. 361, pp. 454-457.
- De Cesare, M, Fifield, L, Weisser, D et al. 2015, 'A new fast-cycling system for AMS at ANU', Nuclear Instruments and Methods in Physics Research: Section B, vol. 361, no. 2015, pp. 475-482.
- Smith, T, Leya, I, Merchel, S et al. 2014, 'Studying the Constancy of Galactic Cosmic Rays Using Cosmogenic Noble Gases and Radionuclides on Iron Meteorites', Annual Meeting of the Meteoritical Society 2014, ed. A. J. Timothy Jull, Wiley Online Library, online.
- Hancock, G, Tims, S, Fifield, L et al. 2014, 'The release and persistence of radioactive anthropogenic nuclides', Geological Society of London Special Publication, vol. 395, no. 1, pp. 265-281.
- Barrows, T, Williams, M, Mills, S et al. 2014, 'A White Nile megalake during the last interglacial period', Geology, vol. 42, no. 2, pp. 163-166.
- Smith, T, Leya, I, Merchel, S et al. 2014, 'Studying the Constancy of Galactic Cosmic Rays Using Cosmogenic Noble Gases and Radionuclides on Iron Meteorites', Annual Meeting of the Meteoritical Society 2014, ed. A. J. Timothy Jull, Wiley Online Library, online.
- Smith, T, Leya, I, Merchel, S et al. 2014, 'Studying the Constancy of Galactic Cosmic Rays Using Cosmogenic Noble Gases and Radionucliotides on Iron Meteorites', 77th Annual Meteoritical Society Meeting (2014), The Meteoritical Society, USA, pp. 1pp.
- Srncik, M, Tims, S, De Cesare, M et al 2014, 'First measurements of 236U concentrations and 236U/239Pu isotopic ratios in a Southern Hemisphere soil far from nuclear test or reactor sites', Journal of Environmental Radioactivity, vol. 132, pp. 108-114.
- Niello, J, Negri, A, Wallner, A et al. 2013, 'Determination of total I and 129I concentrations in freshwater of Argentina', Heavy Ion Accelerator Symposium on Fundamental and Applied Science 2013, ed. C. Simenel, M. Evers, T. Kibedi, EPJ Web of Conferences , France.
- De Cesare, M, Fifield, L, Sabbarese, C et al. 2013, 'Actinides AMS at CIRCE and U-236 and Pu measurements of structural and environmental samples from in and around a mothballed nuclear power plant', 12th International Conference on Accelerator Mass Spectrometry, ed. A Zondervan, C Prior, F Bruhn, R Sparks, Elsevier, Wellington New Zealand, pp. 152-159.
- Lal, R, Tims, S, Fifield, L et al. 2013, 'Applicability of Pu-239 as a tracer for soil erosion in the wet-dry tropics of northern Australia', 12th International Conference on Accelerator Mass Spectrometry, ed. A Zondervan, C Prior, F Bruhn, R Sparks, Elsevier, Wellington New Zealand, pp. 577-583.
- Tims, S, Fifield, L, Hancock, G et al. 2013, 'Plutonium isotope measurements from across continental Australia', 12th International Conference on Accelerator Mass Spectrometry, ed. A Zondervan, C Prior, F Bruhn, R Sparks, Elsevier, Wellington New Zealand, pp. 636-641.
- Fifield, L, Tims, S, Stone, J et al. 2013, 'Ultra-sensitive measurements of Cl-36 and U-236 at the Australian National University', 12th International Conference on Accelerator Mass Spectrometry, ed. A Zondervan, C Prior, F Bruhn, R Sparks, Elsevier, Wellington New Zealand, pp. 126-131.
- Barrows, T, Almond, P, Fifield, L et al. 2013, 'Late Pleistocene glacial stratigraphy of the Kumara-Moana region, West Coast of South Island, New Zealand', Quaternary Science Reviews, vol. 74, pp. 139-159.
- Wendel, C, Fifield, L, Oughton, D et al. 2013, 'Long-range tropospheric transport of uranium and plutonium weapons fallout from Semipalatinsk nuclear test site to Norway', Environment International, vol. 59, pp. 92-102.
- Negri, A, Niello, J, Wallner, A et al. 2013, '129I dispersion in Argentina: Concentrations in fresh and marine water and deposition fluences in Patagonia', Environmental Science and Technology, vol. 47, no. 17, pp. 9693-9698.
- Wendel, C, Oughton, D, Lind, O et al. 2013, 'Chronology of Pu isotopes and 236U in an Arctic ice core', Science of the Total Environment, vol. 461, pp. 734-741.
- Weisser, D, Fifield, L, Tims, S et al. 2013, 'Injection optics for fast mass switching for accelerator mass spectrometry', Third International Symposium on Negative Ions, Beams and Sources (NIBS2012), ed. Olli Tarvainen, Taneli Kalvas, American Institute of Physics (AIP), US, pp. 464-472.
- Tims, S, Tsifakis, D, Srncik, M et al 2013, 'Measurements of low-level anthropogenic radionuclides from soils around Maralinga', Heavy Ion Accelerator Symposium on Fundamental and Applied Science 2013, ed. C. Simenel, M. Evers, T. Kibedi, EPJ Web of Conferences , France.
- Lal, R, Fifield, L, Tims, S et al. 2012, 'A study of soil formation rates using 10Be in the wet-dry tropics of northern Australia', Heavy Ion Accelerator Symposium on Fundamental and Applied Science 2012, ed. M. Evers, P. Kluth, S.G. Tims, A. Wallner and E. Williams (Eds.), EPJ Web of Conferences , Canberra Australia.
- Tims, S & Fifield, L 2012, 'Actinides, accelerators and erosion', Heavy Ion Accelerator Symposium on Fundamental and Applied Science 2012, ed. M. Evers, P. Kluth, S.G. Tims, A. Wallner and E. Williams (Eds.), EPJ Web of Conferences , Canberra Australia.
- Merchel, S, Bremser, W, Akhmadaliev, S et al. 2012, 'Quality assurance in accelerator mass spectrometry: Results from an international round-robin exercise for 10Be', Nuclear Instruments and Methods in Physics Research: Section B, vol. 289, pp. 68-73.
- Hancock, G, C., L, Everett, S et al. 2011, 'Plutonium as a chronomarker in Australian and New Zealand sediments: A comparison with 137Cs', Journal of Environmental Radioactivity, vol. 102, no. 10, pp. 919-929.
- Barrows, T, Hope, G, Prentice, M et al. 2011, 'Late Pleistocene glaciation of the Mt Giluwe volcano, Papua New Guinea', Quaternary Science Reviews, vol. 30, no. 19-20, pp. 2676-2689.
- Pan, S, Tims, S, Liu, X et al. 2011, '137Cs, 239+240Pu concentrations and the 240Pu/239Pu atom ratio in a sediment core from the sub-aqueous delta of Yangtze River estuary', Journal of Environmental Radioactivity, vol. 102, no. 10, pp. 930-936.
- Hoo, W, Fifield, L, Tims, S et al. 2011, 'Using fallout plutonium as a probe for erosion assessment', Journal of Environmental Radioactivity, vol. 102, no. 10, pp. 937-942.
- Merchel, S., Bremser, W., Alfmov, V., Arnold, M., Aumaitre, G., Benedetti, L., Bourles, D.L., Caffee, M., Fifield, L.K., Finkel, R.C., Freeman, S.P.H.T., Martshini, M., Matsushi, Y., Rood, D.H., Sasa, K., Steier, P., Takahashi, T., Tamari, M. Tims, S.G., Tosaki, Y., Wilcken, K.M., Xu, S. 2011, 'Ultra-trace analysis of 36Cl by accelerator mass spectrometry: An interlaboratory study', Analytical and Bioanalytical Chemistry, vol. 400, no. 9, pp. 3125-3132.
- Turney, C, Fifield, L, Hogg, A et al. 2010, 'The potential of New Zealand kauri (Agathis australis) for testing the synchronicity of abrupt climate change during the Last Glacial Interval (60,000-11,700 years ago)', Quaternary Science Reviews, vol. 29, no. 27-28, pp. 3677-3682.
- Argento, D, Stone, J, Fifield, L et al. 2009, 'Constraining the 36Cl/Cl ratio of seawater and its sources', V.M. Goldschmidt Conference 2009, ed. F.A. Podosek, Elsevier, United Kingdom, p. 1.
- Dong, W, Tims, S, Fifield, L et al. 2010, 'Concentration and characterization of plutonium in soils of Hubei in central China', Journal of Environmental Radioactivity, vol. 101, no. 1, pp. 29-32.
- Fujioka, T, Fifield, L, Stone, J et al. 2010, 'In situ cosmogenic 53Mn production rate from ancient low-denudation surface in tropic Brazil', Nuclear Instruments and Methods in Physics Research: Section B, vol. 268, no. 7-8, pp. 1209-1213.
- Tims, S, Everett, S, Fifield, L et al. 2010, 'Plutonium as a tracer of soil and sediment movement in the Herbert River, Australia', Nuclear Instruments and Methods in Physics Research: Section B, vol. 268, no. 7-8, pp. 1150-1154.
- Argento, D, Stone, J, Fifield, L et al. 2010, 'Chlorine-36 in seawater', Nuclear Instruments and Methods in Physics Research: Section B, vol. 268, no. 7-8, pp. 1226-1228.
- Fifield, L, Tims, S, Fujioka, T et al. 2010, 'Accelerator mass spectrometry with the 14UD accelerator at the Australian National University', Nuclear Instruments and Methods in Physics Research: Section B, vol. 268, no. 7-8, pp. 858-862.
- Morgenstern, U, Fifield, L, Tims, S et al. 2010, 'Progress in AMS measurement of natural 32Si for glacier ice dating', Nuclear Instruments and Methods in Physics Research: Section B, vol. 268, no. 7-8, pp. 739-743.
- Tims, S, Pan, S, Zhang, R et al. 2010, 'Plutonium AMS measurements in Yangtze River estuary sediment', Nuclear Instruments and Methods in Physics Research: Section B, vol. 268, no. 7-8, pp. 1155-1158.
- Everett, S, Tims, S, Hancock, G et al. 2008, 'Comparison of Pu and 137Cs as tracers of soil and sediment transport in a terrestrial environment', Journal of Environmental Radioactivity, vol. 99, no. 2, pp. 383-393.
- Wilcken, K, Fifield, L, Barrows, T et al. 2008, 'Nucleogenic 36Cl, 236U and 239Pu in uranium ores', Nuclear Instruments and Methods in Physics Research: Section B, vol. 266, no. 16, pp. 3614-3624.
- Dasgupta, M & Tims, S 2007, 'Unstable Atoms as Detectives', in Chris Stewart and Anne Green (ed.), Ecoscience: The 34th Professor Harry Messel International Science School, Science Foundation for Physics, Sydney, pp. 71-83.
- Winkler, S, Fifield, L, Tims, S et al. 2007, 'L-X-ray production cross-sections for PXAMS: Target and energy dependence for 50-200 MeV hafnium ions', Nuclear Instruments and Methods in Physics Research: Section B, vol. 259, pp. 260-264.
- Turney, C, Fifield, L, Palmer, J et al. 2007, 'Towards a Radiocarbon Calibration for Oxygen Istotope Stage 3 Using New Zealand Kauri (Agathis australis)', Radiocarbon, vol. 49, no. 2, pp. 447-457.
- Wilcken, K, Barrows, T, Fifield, L et al. 2007, 'AMS of natural 236U and 239Pu produced in uranium ores', Nuclear Instruments and Methods in Physics Research: Section B, vol. 259, pp. 727-732.
- Fifield, L, Tims, S, Gladkis, L et al. 2007, '26Al measurements with 10Be counting statistics', Nuclear Instruments and Methods in Physics Research: Section B, vol. 259, pp. 178-183.
- Gladkis, L, Fifield, L, Morton, C et al. 2007, 'Manganese-53: Development of the AMS technique for exposure-age dating applications', Nuclear Instruments and Methods in Physics Research: Section B, vol. 259, pp. 236-240.
- Winkler, S, Fifield, L, Tims, S et al. 2007, 'Improving the detection limit for 182Hf', Nuclear Instruments and Methods in Physics Research: Section B, vol. 259, pp. 256-259.
- Bollhofer, A, Storm, J, Martin, P et al. 2006, 'Geographic Variability in Radon Exhalation at a Rehabilitated Uranium Mine in the Northern Terrtitory, Australia', Environmental Monitoring and Assessment, vol. 114, pp. 313-330.
- Martin, P, Tims, S, McGill, A et al. 2006, 'Use of Airborne γ-Ray Spectrometry for Environmental Assessment of the Rehabilitated Nabarlek Uranium Mine, Australia', Environmental Monitoring and Assessment, vol. 115, no. 3, pp. 531-553.
- Lind, O, Oughton, D, Salbu, B et al. 2006, 'Transport of low 240Pu/239Pu atom ratio plutonium-species in the Ob and Yenisey Rivers to the Kara Sea', Earth and Planetary Science Letters, vol. 251, pp. 33-43.
- Outola, I, Filliben, J, Inn, K et al. 2006, 'Characterization of the NIST seaweed Standard Reference Material', Applied Radiation and Isotopes, vol. 64, pp. 1242-1247.
- Skipperud, L, Oughton, D, Fifield, L et al. 2004, 'Plutonium Isotope Ratios in the Yenisey and Ob Estuaries', Applied Radiation and Isotopes, vol. 60, pp. 589-593.
- Wacker, L, Fifield, L & Tims, S 2004, 'Developments in AMS of 99Tc', Nuclear Instruments and Methods in Physics Research: Section B, vol. 223-224, pp. 185-189.
- Barbosa, J, Cordeiro, R, Silva, E et al. 2004, '14C-AMS as a Tool for the Investigation of Mercury Deposition at a Remote Amazon Location', Nuclear Instruments and Methods in Physics Research: Section B, vol. 223-224, pp. 528-534.
- Tims, S, Hancock, G, Wacker, L et al. 2004, 'Measurements of Pu and Ra Isotopes in Soils and Sediments by AMS', Nuclear Instruments and Methods in Physics Research: Section B, vol. 223-224, pp. 796-801.
- Martin, P, Tims, S, Ryan, B et al. 2004, 'A Radon and Meteorological Measurement Network for the Alligator Rivers Region, Australia', Journal of Environmental Radioactivity, vol. 76, pp. 35-49.
- Tims, S & Fifield, L 2003, 'Measurement of radium isotopes with the ANU AMS Facility', Conference on Nuclear Science & Engineering in Australia (ANA 2003), ed. Dr Clarence J.Hardy, Australian Nuclear Association Inc, Sutherland, Australia, p. 3.
- Weisser, D, Lobanov, N, Hausladen, P et al. 2002, 'Novel Matching Lens and Spherical Ionizer for a Cesium Sputter Ion Source', Pramana, vol. 59, no. 6, pp. 997-1006.
Projects and Grants
Grants information is drawn from ARIES. To add or update Projects or Grants information please contact your College Research Office.
- ARC Centre of Excellence for Dark Matter Particle Physics (Secondary Investigator)
- Laboratory studies of Nucleosynthesis via Accelerator Mass Spectrometry (Secondary Investigator)
- Developing new techniques for mapping soil loss and movement in Australia (Secondary Investigator)
- Assessing soil formation and erosion balances in the Top End with an expanded toolkit (Secondary Investigator)