Dr Stephen Tims

Position Fellow
Department Department of Nuclear Physics
Office phone (02) 612 52086
Email
Office Nuclear Physics 2 44
Curriculum vitae Tims CV (282KB PDF)

Publications

Book chapter

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Unstable Atoms as Detectives
Ecoscience: The 34th Professor Harry Messel International Science School
Science Foundation for Physics, Sydney (2007) 71-83

(1 publications)

Journal article

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The Pu-240/Pu-239 atom ratio in Chinese soils
Science of the Total Environment 678, -() 603-610
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ColPuS, a new multi-isotope plutonium standard for Accelerator Mass Spectrometry
Nuclear Instruments and Methods in Physics Research: Section B 438() 189-192

The 240Pu/239Pu atom ratio in Chinese soils
Science of the Total Environment 678() 6
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Accelerator mass spectrometry measurement of the reaction Cl 35 (n,?) Cl 36 at keV energies
Physical Review C: Nuclear Physics 99, 1()
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New and upgraded ionization chambers for AMS at the Australian National University
Nuclear Instruments and Methods in Physics Research: Section B 438() 141-147
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93Zr developments at the Heavy Ion Accelerator Facility at ANU
Nuclear Instruments and Methods in Physics Research: Section B 438() 77-83
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The source and reference inventory of 239+240 Pu in the soil of China
Zhongguo Huanjing Kexue 38, 12() 4608-4616
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Limits on Supernova-Associated Fe 60/Al 26 Nucleosynthesis Ratios from Accelerator Mass Spectrometry Measurements of Deep-Sea Sediments
Physical Review Letters 121, 22() 6
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Further constraint of the in situ cosmogenic 10Be production rate in pyroxene and a viability test for late Quaternary exposure dating
Quaternary Geochronology 48() 121-132
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No Fukushima Dai-ichi derived plutonium signal in marine sediments collected 1.5?57 km from the reactors
Applied Radiation and Isotopes 129() 180-184
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239Pu fallout across continental Australia: Implications on 239Pu use as a soil tracer
Journal of Environmental Radioactivity 178-179() 394-403
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Recent near-Earth supernovae probed by global deposition of interstellar radioactive Fe-60
Nature 532, 7597() 69-72
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Settling the Half-Life of Fe-60: Fundamental for a Versatile Astrophysical Chronometer
Physical Review Letters 114, 4()
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Uranium from German Nuclear Power Projects of the 1940s A Nuclear Forensic Investigation
Angewandte Chemie International Edition 54, 45() 13452-13456
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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 361, 2015() 327-331
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Background reduction in U-236/U-238 measurements
Nuclear Instruments and Methods in Physics Research: Section B 361() 454-457
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Be-10-derived denudation rates from the Burdekin catchment: The largest contributor of sediment to the Great Barrier Reef
Geomorphology 241() 122-134
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A new fast-cycling system for AMS at ANU
Nuclear Instruments and Methods in Physics Research: Section B 361, 2015() 475-482
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The release and persistence of radioactive anthropogenic nuclides
Geological Society of London Special Publication 395, 1() 265-281
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A White Nile megalake during the last interglacial period
Geology 42, 2() 163-166
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Late Pleistocene glacial stratigraphy of the Kumara-Moana region, West Coast of South Island, New Zealand
Quaternary Science Reviews 74() 139-159
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Chronology of Pu isotopes and 236U in an Arctic ice core
Science of the Total Environment 461() 734-741
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129I dispersion in Argentina: Concentrations in fresh and marine water and deposition fluences in Patagonia
Environmental Science and Technology 47, 17() 9693-9698
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Long-range tropospheric transport of uranium and plutonium weapons fallout from Semipalatinsk nuclear test site to Norway
Environment International 59() 92-102
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Quality assurance in accelerator mass spectrometry: Results from an international round-robin exercise for 10Be
Nuclear Instruments and Methods in Physics Research: Section B 289() 68-73
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Ultra-trace analysis of 36Cl by accelerator mass spectrometry: An interlaboratory study
Analytical and Bioanalytical Chemistry 400, 9() 3125-3132
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Late Pleistocene glaciation of the Mt Giluwe volcano, Papua New Guinea
Quaternary Science Reviews 30, 19-20() 2676-2689
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Using fallout plutonium as a probe for erosion assessment
Journal of Environmental Radioactivity 102, 10() 937-942
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Plutonium as a chronomarker in Australian and New Zealand sediments: A comparison with 137Cs
Journal of Environmental Radioactivity 102, 10() 919-929
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Plutonium AMS measurements in Yangtze River estuary sediment
Nuclear Instruments and Methods in Physics Research: Section B 268, 7-8() 1155-1158
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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 29, 27-28() 3677-3682
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Progress in AMS measurement of natural 32Si for glacier ice dating
Nuclear Instruments and Methods in Physics Research: Section B 268, 7-8() 739-743
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Plutonium as a tracer of soil and sediment movement in the Herbert River, Australia
Nuclear Instruments and Methods in Physics Research: Section B 268, 7-8() 1150-1154
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Chlorine-36 in seawater
Nuclear Instruments and Methods in Physics Research: Section B 268, 7-8() 1226-1228
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Accelerator mass spectrometry with the 14UD accelerator at the Australian National University
Nuclear Instruments and Methods in Physics Research: Section B 268, 7-8() 858-862
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In situ cosmogenic 53Mn production rate from ancient low-denudation surface in tropic Brazil
Nuclear Instruments and Methods in Physics Research: Section B 268, 7-8() 1209-1213
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Concentration and characterization of plutonium in soils of Hubei in central China
Journal of Environmental Radioactivity 101, 1() 29-32
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Comparison of Pu and 137Cs as tracers of soil and sediment transport in a terrestrial environment
Journal of Environmental Radioactivity 99, 2() 383-393
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Nucleogenic 36Cl, 236U and 239Pu in uranium ores
Nuclear Instruments and Methods in Physics Research: Section B 266, 16() 3614-3624
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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 259() 260-264
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Improving the detection limit for 182Hf
Nuclear Instruments and Methods in Physics Research: Section B 259() 256-259
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Towards a Radiocarbon Calibration for Oxygen Istotope Stage 3 Using New Zealand Kauri (Agathis australis)
Radiocarbon 49, 2() 447-457
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AMS of natural 236U and 239Pu produced in uranium ores
Nuclear Instruments and Methods in Physics Research: Section B 259() 727-732
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26Al measurements with 10Be counting statistics
Nuclear Instruments and Methods in Physics Research: Section B 259() 178-183
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Manganese-53: Development of the AMS technique for exposure-age dating applications
Nuclear Instruments and Methods in Physics Research: Section B 259() 236-240
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Characterization of the NIST seaweed Standard Reference Material
Applied Radiation and Isotopes 64() 1242-1247
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Use of Airborne γ-Ray Spectrometry for Environmental Assessment of the Rehabilitated Nabarlek Uranium Mine, Australia
Environmental Monitoring and Assessment 115, 3() 531-553
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Geographic Variability in Radon Exhalation at a Rehabilitated Uranium Mine in the Northern Terrtitory, Australia
Environmental Monitoring and Assessment 114() 313-330
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Transport of low 240Pu/239Pu atom ratio plutonium-species in the Ob and Yenisey Rivers to the Kara Sea
Earth and Planetary Science Letters 251() 33-43
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Developments in AMS of 99Tc
Nuclear Instruments and Methods in Physics Research: Section B 223-224() 185-189
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Measurements of Pu and Ra Isotopes in Soils and Sediments by AMS
Nuclear Instruments and Methods in Physics Research: Section B 223-224() 796-801
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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 223-224() 528-534
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Plutonium Isotope Ratios in the Yenisey and Ob Estuaries
Applied Radiation and Isotopes 60() 589-593
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A Radon and Meteorological Measurement Network for the Alligator Rivers Region, Australia
Journal of Environmental Radioactivity 76() 35-49
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Novel Matching Lens and Spherical Ionizer for a Cesium Sputter Ion Source
Pramana 59, 6() 997-1006

(63 publications)

Conference paper

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Using 239Pu as a tracer for fine sediment sources in the Daly River, Northern Australia
Heavy-Ion Accelerator Symposium, HIAS 2014 ?, ?() 1-7
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Measurements of low-level anthropogenic radionuclides from soils around Maralinga
Heavy Ion Accelerator Symposium on Fundamental and Applied Science 2013 63()
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Injection optics for fast mass switching for accelerator mass spectrometry
Third International Symposium on Negative Ions, Beams and Sources (NIBS2012) 1515() 464-472
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Determination of total I and 129I concentrations in freshwater of Argentina
Heavy Ion Accelerator Symposium on Fundamental and Applied Science 2013 63()
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Plutonium isotope measurements from across continental Australia
12th International Conference on Accelerator Mass Spectrometry 294, 2013() 636-641
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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 294() 577-583
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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 294() 152-159
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Ultra-sensitive measurements of Cl-36 and U-236 at the Australian National University
12th International Conference on Accelerator Mass Spectrometry 294, 2013() 126-131
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Actinides, accelerators and erosion
Heavy Ion Accelerator Symposium on Fundamental and Applied Science 2012 35()
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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 35()
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Constraining the 36Cl/Cl ratio of seawater and its sources
V.M. Goldschmidt Conference 2009 ?, ?() 1
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The development of AMS measurements of manganese-53 for erosion rate studies
V.M. Goldschmidt Conference 2006 ?, ?() 1

(13 publications)

Conference written presentation

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Measurement of radium isotopes with the ANU AMS Facility
Conference on Nuclear Science & Engineering in Australia (ANA 2003) ?, ?() 3

(1 publications)

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