Daniel Oldfield
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Daniel Oldfield has a total of 6 co-authors. Here are the top co-authors by number of shared publications:
- Amelia C. Y. Liu
School of Physics and Astronomy, Monash University, Clayton, Victoria, Australia
1 shared publication - Anita M. D’ Angelo
Australian Synchrotron, Australian Nuclear Science and Technology Organization
1 shared publication - Helen E. A. Brand
Australian Synchrotron, Australian Nuclear Science and Technology Organisation (ANSTO), 800 Blackburn Road, Clayton, Victoria 3168, Australia
1 shared publication - Jessica L. Hamilton
Australian Synchrotron, Australian Nuclear Science and Technology Organisation (ANSTO), 800 Blackburn Road, Clayton, Victoria 3168, Australia
1 shared publication - Qinfen Gu
Australian Synchrotron, ANSTO, Clayton, Australia
1 shared publication - Valerie D. Mitchell
Australian Synchrotron, Australian Nuclear Science and Technology Organisation (ANSTO), 800 Blackburn Road, Clayton, Victoria 3168, Australia
1 shared publication
Latest Publications
- Open Access
- 13 January 2023
- Published by International Union of Crystallography (IUCr) in Journal of Synchrotron Radiation
- Vol. 30 (2) , 327-339
Total scattering measurements at the Australian Synchrotron Powder Diffraction beamline: capabilities and limitations
This study describes the capabilities and limitations of carrying out total scattering experiments on the Powder Diffraction (PD) beamline at the Australian Synchrotron, ANSTO. A maximum instrument momentum transfer of 19 Å−1 can be achieved if the data are collected at 21 keV. The results detail how the pair distribution function (PDF) is affected by Q max, absorption and counting time duration at the PD beamline, and refined structural parameters exemplify how the PDF is affected by these parameters. There are considerations when performing total scattering experiments at the PD beamline, including (1) samples need to be stable during data collection, (2) highly absorbing samples with a μR > 1 always require dilution and (3) only correlation length differences >0.35 Å may be resolved. A case study comparing the PDF atom–atom correlation lengths with EXAFS-derived radial distances of Ni and Pt nanocrystals is also presented, which shows good agreement between the two techniques. The results here can be used as a guide for researchers considering total scattering experiments at the PD beamline or similarly setup beamlines.
- 13 January 2023
- Published by International Union of Crystallography (IUCr) in Journal of Synchrotron Radiation
- Vol. 30 (2) , 327-339
Open AccessTotal scattering measurements at the Australian Synchrotron Powder Diffraction beamline: capabilities and limitations
This study describes the capabilities and limitations of carrying out total scattering experiments on the Powder Diffraction (PD) beamline at the Australian Synchrotron, ANSTO. A maximum instrument momentum transfer of 19 Å−1 can be achieved if the data are collected at 21 keV. The results detail how the pair distribution function (PDF) is affected by Q max, absorption and counting time duration at the PD beamline, and refined structural parameters exemplify how the PDF is affected by these parameters. There are considerations when performing total scattering experiments at the PD beamline, including (1) samples need to be stable during data collection, (2) highly absorbing samples with a μR > 1 always require dilution and (3) only correlation length differences >0.35 Å may be resolved. A case study comparing the PDF atom–atom correlation lengths with EXAFS-derived radial distances of Ni and Pt nanocrystals is also presented, which shows good agreement between the two techniques. The results here can be used as a guide for researchers considering total scattering experiments at the PD beamline or similarly setup beamlines.