Projects per year
Abstract / Description of output
Although the pressures achievable in laser experiments continue to increase, the mechanisms underlying how solids deform at high strain rates are still not well understood. In particular, at higher pressures, the assumption that the difference between the longitudinal and transverse strains in a sample remains small becomes increasingly invalid. In recent years, there has been an increasing interest in simulating compression experiments on a granular level. In situ X-ray diffraction, where a target is probed with X-rays while a shock is propagating through it, is an excellent tool to test these simulations. We present data from the first long-pulse laser experiment at the MEC instrument of LCLS, the world's first hard X-ray Free Electron Laser, demonstrating large strain anisotropies. From this we infer shear stresses in polycrystalline copper of up to 1.75 GPa at a shock pressure of 32 GPa.
Original language | English |
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Title of host publication | 18TH APS-SCCM AND 24TH AIRAPT, PTS 1-19 |
Editors | W Buttler, M Furlanetto, W Evans |
Place of Publication | BRISTOL |
Publisher | IOP Publishing |
Number of pages | 6 |
DOIs | |
Publication status | Published - 2014 |
Event | 18th Joint Int Conf of the APS Topical-Grp on Shock Compress of Condensed Matter / 24th Int Conf of the Int-Assoc-for-the-Advancement-of-High-Pressure-Sci-and-Technol - Seattle, United Kingdom Duration: 7 Jul 2013 → 12 Jul 2013 |
Publication series
Name | Journal of Physics Conference Series |
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Publisher | IOP PUBLISHING LTD |
Volume | 500 |
ISSN (Print) | 1742-6588 |
Conference
Conference | 18th Joint Int Conf of the APS Topical-Grp on Shock Compress of Condensed Matter / 24th Int Conf of the Int-Assoc-for-the-Advancement-of-High-Pressure-Sci-and-Technol |
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Country/Territory | United Kingdom |
Period | 7/07/13 → 12/07/13 |
Keywords / Materials (for Non-textual outputs)
- STRESS
- STRENGTH
- METALS
Fingerprint
Dive into the research topics of 'Investigations into rapid uniaxial compression of polycrystalline targets using femtosecond X-ray diffraction'. Together they form a unique fingerprint.Projects
- 3 Finished
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The Creation and Diagnosis of Soild-State Matter at Multi-TeraPascal Pressures
30/09/12 → 31/03/17
Project: Research
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william Penney Fellowship
UK industry, commerce and public corporations
1/10/11 → 31/03/15
Project: Research
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