Rachel Popelka-Filcoff

Radionuclides and stable elements in vegetation in Australian arid environments: Concentration ratios and seasonal variation

Maria Angelica D Rea, Mathew P Johansen, Timothy E Payne, Gillian Hirth, Jim Hondros, Samantha Pandelus, William Tucker, Tim Duff, Attila Stopic, Liesel Green, Allan Pring, Claire E Lenehan, Rachel S Popelka-Filcoff

Journal article  |  2021  |  JOURNAL OF ENVIRONMENTAL RADIOACTIVITY

Data on the uptake of elements and radionuclides by flora from soils in arid environments are underrepresented in international da..

Phase Analysis of Australian Uranium Ore Concentrates Determined by Variable Temperature Synchrotron Powder X-ray Diffraction

Samantha B Pandelus, Brendan J Kennedy, Gabriel Murphy, Helen E Brand, Elizabeth Keegan, Allan Pring, Rachel S Popelka-Filcoff

Journal article  |  2021  |  INORGANIC CHEMISTRY

The chemical speciation of uranium oxides is sensitive to the provenance of the samples and their storage conditions. Here, we use..

To glove or not to glove? Investigations into the potential contamination from handling of paper-based cultural heritage through forensic fingerprinting approaches.

Karin J van der Pal, Rachel S Popelka-Filcoff, Gregory D Smith, Wilhelm van Bronswijk, Simon W Lewis

Journal article  |  2021  |  Forensic Sci Int Synerg

The handling of cultural heritage objects has become a highly debated topic in the last decade. The work and outcomes described in..

Armed with the Facts: A Method for the Analysis of Smokeless Powders by Ambient Mass Spectrometry

Callum Bonnar, Rachel Popelka-Filcoff, K Paul Kirkbride

Journal article  |  2020  |  JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY

The work presented here follows several others in investigating what capabilities, if any, ambient mass spectrometry might have to..

Tandem detection of organic and inorganic gunshot residues using LC-MS and SEM-EDS

Callum Bonnar, Eliza C Moule, Nick Lucas, Kelsey E Seyfang, Robert P Dunsmore, Rachel S Popelka-Filcoff, Kahlee Redman, K Paul Kirkbride

Journal article  |  2020  |  FORENSIC SCIENCE INTERNATIONAL

Gunshot residue (GSR) is a valuable form of forensic trace evidence in the investigation of firearms crime. The current gold-stand..

Seeing red: an analysis of archeological hematite in east central Missouri

Daniel E Pierce, Patti J Wright, Rachel S Popelka-Filcoff

Journal article  |  2020  |  ARCHAEOLOGICAL AND ANTHROPOLOGICAL SCIENCES

Ceramic and chert artifacts constitute the main evidence for understanding trade and cultural dynamics in prehistoric eastern Miss..

Pigment Analysis in Archaeology

Rachel Sarah Popelka-Filcoff

Book Chapter  |  2020

Proton-Induced X-Ray Emission Spectroscopy (PIXE): Applications in Archaeology

Rachel Sarah Popelka-Filcoff

Book Chapter  |  2020

Consumption and exchange in Early Modern Cambodia: NAA of brown-glaze stoneware from Longvek, 15th-17th centuries

Martin Polkinghorne, Catherine Amy Morton, Amy Roberts, Rachel S Popelka-Filcoff, Yuni Sato, Voeun Vuthy, Pariwat Thammapreechakorn, Attila Stopic, Peter Grave, Don Hein, Leng Vitou

Journal article  |  2019  |  PLOS ONE

An evaluation of the geochemical characteristics of 102 storage jar sherds by k0-neutron activation analysis (k0-NAA) from archaeo..

Glass-containing gunshot residues and particles of industrial and occupational origins: Considerations for evaluating GSR traces

Kelsey E Seyfang, Nick Lucas, Kahlee E Redman, Rachel S Popelka-Filcoff, Hilton J Kobus, K Paul Kirkbride

Journal article  |  2019  |  FORENSIC SCIENCE INTERNATIONAL

In an ideal case, the value of traces would be determined numerically and presented through the use of likelihood ratios or verbal..