Tuesday, 26 November 2024 12:00pm-1:00pm

This seminar will be delivered in New Law Lecture Theatre 106

Speaker: Dr Josie Auckett

Host: Prof. Chris Ling

Title: New high-energy X-ray diffraction capabilities coming soon to the Australian Synchrotron

Abstract: The Australian Synchrotron’s suite of X-ray beamlines supports a broad range of  crystallography, spectroscopy, microscopy and tomography experiments for investigating material composition and structure. Two new beamlines, ADS-1 and ADS-2, will soon become the first beamlines at the Synchrotron to offer very hard X-rays (45–150 keV; λ = 0.08–0.27 Å) for diffraction experiments on monocrystalline, polycrystalline and heterogenous samples. The nature of high-energy radiation makes the ADS beamlines well-suited to probing dense or bulky samples, as well as giving access to high momentum transfer (large Q/short d-spacings) required for pair distribution function (PDF) analysis. ADS caters to complex in situ experimental setups and supports both monochromatic and polychromatic beam modes for advanced characterisation methods such as depth-resolved energy-dispersive diffraction, poly-grain texture and strain studies, and side-by-side X-ray imaging of samples. This talk describes the new experimental capabilities that will be accessible at ADS when the beamlines commence regular user operations in 2026.

Bio: Dr Josie Auckett is a beamline scientist for the Advanced Diffraction and Scattering (ADS-1 & ADS-2) beamlines at the Australian Synchrotron in Melbourne. She completed her PhD in the solid-state chemistry group at the University of Sydney in 2015. Her research interests concern the relationships between atomic structure and macroscopic functionality in solid inorganic materials, especially those with applications relevant to energy conversion and storage. Prior to joining the Synchrotron, she held a Newton International Fellowship at Durham University, UK, where she specialised in optical floating-zone growth of oxide ionic-conductive crystals and their characterisation using x-ray and neutron crystallography.