Professor Justin Wark: Publications

In-situ probing of lattice response in shock compressed materials using X-ray diffraction

AIP Conf. Proc. 955 (2007) 1327-1332

Authors:

J Hawreliak, M Butterfield, H Davies, B El-Dasher, A Higginbotham, D Kalantar, G Kimminau, J McNaney, D Milathianaki, W Murphy, B Nagler, N Park, B Remington, L Thorton, T Whitcher, J Wark, H Lorenzana

Abstract:

Lattice level measurements of material response under extreme conditions are required to build a phenomenological understanding of the shock response of solids. We have successfully 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. Using a detailed analysis of shocked single crystal iron which has undergone the α - ε phase transition we can constrain the transition mechanism to be consistent with a compression and shuffle of alternate lattice planes. © 2007 American Institute of Physics.

Large acoustic transients induced by nonthermal melting of InSb

PHYSICAL REVIEW LETTERS 98:22 (2007) ARTN 225502

Authors:

H Enquist, H Navirian, TN Hansen, AM Lindenberg, P Sondhauss, O Synnergren, JS Wark, J Larsson

Modeling Planetary Interiors in Laser Based Experiments Using Shockless Compression

Chapter in High Energy Density Laboratory Astrophysics, Springer Nature (2007) 285-289

Authors:

J Hawreliak, J Colvin, J Eggert, DH Kalantar, HE Lorenzana, S Pollaine, K Rosolankova, BA Remington, J Stölken, JS Wark

Nanosecond x-Ray diffraction from polycrystalline and amorphous materials in a pinhole camera geometry suitable for laser shock compression experiments

REVIEW OF SCIENTIFIC INSTRUMENTS 78:8 (2007) ARTN 083908

Authors:

J Hawreliak, HE Lorenzana, BA Remington, S Lukezic, JS Wark

Prospects for using X-ray Free-Electron Lasers to investigate shock-compressed matter

AIP Conf. Proc. 955 (2007) 1333-1336

Authors:

B Nagler, A Higginbotham, G Kimminau, W Murphy, T Whitcher, J Wark, J Hawreliak, D Kalantar, R Lee, H Lorenzana, B Remington, J Larsson, N Park, K Sokolowski-Tinten

Abstract:

Within the next few years hard X-ray Free Electron Lasers will come on line. Such systems will have spectral brightnesses ten orders of magnitude greater than any extant synchrotron, with pulse lengths as short as a few femtoseconds. It is anticipated that large-scale optical lasers capable of shock-compressing matter to multi-megabar pressures will be sited alongside the X-ray source. We discuss how such systems can further our knowledge of shocked and isochorically heated matter, in particular investigating the potential to perform poly crystalline diffraction and the creation of warm dense matter. © 2007 American Institute of Physics.

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