Giles Kimminau
University of Oxford
13 Papers
6 Citations
Giles Kimminau is an academic researcher from University of Oxford. The author has contributed to research in topics: Diffraction & X-ray crystallography. The author has an hindex of 9, co-authored 13 publications.
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Papers
High-energy x-ray backlighter spectrum measurements using calibrated image plates
Brian Maddox,H.-S. Park,Bruce Remington,Nobuhiko Izumi,Sophia Chen,C. Chen,Giles Kimminau,Z. A. Ali,M. J. Haugh,Qing Ma +9 more
TL;DR: In this paper, the x-ray spectrum between 18 and 88 keV generated by a petawatt laser driven X-ray backlighter target was measured using a 12-channel differential filter pair spectrometer.
147
The strength of single crystal copper under uniaxial shock compression at 100 GPa
William J. Murphy,Andrew Higginbotham,Giles Kimminau,B. Barbrel,Eduardo M. Bringa,James Hawreliak,Ryosuke Kodama,M. Koenig,W McBarron,Marc A. Meyers,Bob Nagler,Norimasa Ozaki,Nigel Park,Bruce Remington,S. Rothman,Sam Vinko,T. Whitcher,Justin Wark +17 more
TL;DR: It is inferred, using molecular dynamics simulations and VISAR (standing for 'velocity interferometer system for any reflector') measurements, that the strength of the material increases dramatically (to approximately 1 GPa) for these extreme strain rates.
92
In situ x-ray diffraction measurements of the c/a ratio in the high-pressure ε phase of shock-compressed polycrystalline iron
James Hawreliak,Bassem S. El-Dasher,Hector Lorenzana,Giles Kimminau,Andrew Higginbotham,Bob Nagler,Sam Vinko,William J. Murphy,T. Whitcher,Justin Wark,S. Rothman,Nigel Park +11 more
TL;DR: In this paper, the structure of laser-shock-compressed polycrystalline iron was probed using in situ x-ray diffraction over a pressure range spanning the $\ensuremath{\alpha}$-$\ensuremath{\epsilon}$ phase transition.
Nanosecond white-light Laue diffraction measurements of dislocation microstructure in shock-compressed single-crystal copper.
Matthew Suggit,Andrew Higginbotham,James Hawreliak,Gabriele Mogni,Giles Kimminau,Patrick Dunne,Andrew Comley,Nigel Park,Bruce Remington,Justin Wark +9 more
TL;DR: The first in situ observations of the stress relaxation mechanism in a laser-shocked crystal are made using white-light X-ray Laue diffraction on a nanosecond timescale, demonstrating the presence of stress-dependent lattice rotations along specific crystallographic directions.
In-situ probing of lattice response in shock compressed materials using x-ray diffraction
James Hawreliak,Martin Butterfield,Huw Davies,Bassem S. El-Dasher,Andrew Higginbotham,Daniel H. Kalantar,Giles Kimminau,James McNaney,Despina Milathianaki,William J. Murphy,Bob Nagler,Nigel Park,Bruce Remington,Lee Thorton,T. Whitcher,Justin Wark,Hector Lorenzana +16 more
TL;DR: In this article, the authors used laser produced plasma x-ray sources coincident with laser driven shock waves to make in situ measurements of the lattice response during shock compression for both single crystal and polycrystalline materials.