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</div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2501.02940">arXiv:2501.02940</a> <span> [<a href="https://arxiv.org/pdf/2501.02940">pdf</a>, <a href="https://arxiv.org/format/2501.02940">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> </div> </div> <p class="title is-5 mathjax"> Femtosecond temperature measurements of laser-shocked copper deduced from the intensity of the x-ray thermal diffuse scattering </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Wark%2C+J+S">J. S. Wark</a>, <a href="/search/physics?searchtype=author&query=Peake%2C+D+J">D. J. Peake</a>, <a href="/search/physics?searchtype=author&query=Stevens%2C+T">T. Stevens</a>, <a href="/search/physics?searchtype=author&query=Heighway%2C+P+G">P. G. Heighway</a>, <a href="/search/physics?searchtype=author&query=Ping%2C+Y">Y. Ping</a>, <a href="/search/physics?searchtype=author&query=Sterne%2C+P">P. Sterne</a>, <a href="/search/physics?searchtype=author&query=Albertazzi%2C+B">B. Albertazzi</a>, <a href="/search/physics?searchtype=author&query=Ali%2C+S+J">S. J. Ali</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+L">L. Antonelli</a>, <a href="/search/physics?searchtype=author&query=Armstrong%2C+M+R">M. R. Armstrong</a>, <a href="/search/physics?searchtype=author&query=Baehtz%2C+C">C. Baehtz</a>, <a href="/search/physics?searchtype=author&query=Ball%2C+O+B">O. B. Ball</a>, <a href="/search/physics?searchtype=author&query=Banerjee%2C+S">S. Banerjee</a>, <a href="/search/physics?searchtype=author&query=Belonoshko%2C+A+B">A. B. Belonoshko</a>, <a href="/search/physics?searchtype=author&query=Bolme%2C+C+A">C. A. Bolme</a>, <a href="/search/physics?searchtype=author&query=Bouffetier%2C+V">V. Bouffetier</a>, <a href="/search/physics?searchtype=author&query=Briggs%2C+R">R. Briggs</a>, <a href="/search/physics?searchtype=author&query=Buakor%2C+K">K. Buakor</a>, <a href="/search/physics?searchtype=author&query=Butcher%2C+T">T. Butcher</a>, <a href="/search/physics?searchtype=author&query=Cafiso%2C+S+D+D">S. Di Dio Cafiso</a>, <a href="/search/physics?searchtype=author&query=Cerantola%2C+V">V. Cerantola</a>, <a href="/search/physics?searchtype=author&query=Chantel%2C+J">J. Chantel</a>, <a href="/search/physics?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/physics?searchtype=author&query=Coleman%2C+A+L">A. L. Coleman</a>, <a href="/search/physics?searchtype=author&query=Collier%2C+J">J. Collier</a> , et al. (100 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2501.02940v1-abstract-short" style="display: inline;"> We present 50-fs, single-shot measurements of the x-ray thermal diffuse scattering (TDS) from copper foils that have been shocked via nanosecond laser-ablation up to pressures above 135~GPa. We hence deduce the x-ray Debye-Waller (DW) factor, providing a temperature measurement. The targets were laser-shocked with the DiPOLE 100-X laser at the High Energy Density (HED) endstation of the European X… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.02940v1-abstract-full').style.display = 'inline'; document.getElementById('2501.02940v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2501.02940v1-abstract-full" style="display: none;"> We present 50-fs, single-shot measurements of the x-ray thermal diffuse scattering (TDS) from copper foils that have been shocked via nanosecond laser-ablation up to pressures above 135~GPa. We hence deduce the x-ray Debye-Waller (DW) factor, providing a temperature measurement. The targets were laser-shocked with the DiPOLE 100-X laser at the High Energy Density (HED) endstation of the European X-ray Free-Electron Laser (EuXFEL). Single x-ray pulses, with a photon energy of 18 keV, were scattered from the samples and recorded on Varex detectors. Despite the targets being highly textured (as evinced by large variations in the elastic scattering), and with such texture changing upon compression, the absolute intensity of the azimuthally averaged inelastic TDS between the Bragg peaks is largely insensitive to these changes, and, allowing for both Compton scattering and the low-level scattering from a sacrificial ablator layer, provides a reliable measurement of $T/螛_D^2$, where $螛_D$ is the Debye temperature. We compare our results with the predictions of the SESAME 3336 and LEOS 290 equations of state for copper, and find good agreement within experimental errors. We thus demonstrate that single-shot temperature measurements of dynamically compressed materials can be made via thermal diffuse scattering of XFEL radation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.02940v1-abstract-full').style.display = 'none'; document.getElementById('2501.02940v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2025. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages, 9 figures in main article; 10 pages, 5 figures in supplementary material</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2201.04254">arXiv:2201.04254</a> <span> [<a href="https://arxiv.org/pdf/2201.04254">pdf</a>, <a href="https://arxiv.org/format/2201.04254">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Geophysics">physics.geo-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1063/5.0095654">10.1063/5.0095654 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Development of slurry targets for high repetition-rate XFEL experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Smith%2C+R+F">Raymond F. Smith</a>, <a href="/search/physics?searchtype=author&query=Rastogi%2C+V">Vinay Rastogi</a>, <a href="/search/physics?searchtype=author&query=Lazicki%2C+A+E">Amy E. Lazicki</a>, <a href="/search/physics?searchtype=author&query=Gorman%2C+M+G">Martin G. Gorman</a>, <a href="/search/physics?searchtype=author&query=Briggs%2C+R">Richard Briggs</a>, <a href="/search/physics?searchtype=author&query=Coleman%2C+A+L">Amy L. Coleman</a>, <a href="/search/physics?searchtype=author&query=Davis%2C+C">Carol Davis</a>, <a href="/search/physics?searchtype=author&query=Singh%2C+S">Saransh Singh</a>, <a href="/search/physics?searchtype=author&query=McGonegle%2C+D">David McGonegle</a>, <a href="/search/physics?searchtype=author&query=Clarke%2C+S+M">Samantha M. Clarke</a>, <a href="/search/physics?searchtype=author&query=Volz%2C+T">Travis Volz</a>, <a href="/search/physics?searchtype=author&query=Hutchinson%2C+T">Trevor Hutchinson</a>, <a href="/search/physics?searchtype=author&query=McGuire%2C+C">Christopher McGuire</a>, <a href="/search/physics?searchtype=author&query=Fratanduono%2C+D+E">Dayne E. Fratanduono</a>, <a href="/search/physics?searchtype=author&query=Swift%2C+D+C">Damian C. Swift</a>, <a href="/search/physics?searchtype=author&query=Folsom%2C+E">Eric Folsom</a>, <a href="/search/physics?searchtype=author&query=Bolme%2C+C+A">Cynthia A. Bolme</a>, <a href="/search/physics?searchtype=author&query=Gleason%2C+A+E">Arianna E. Gleason</a>, <a href="/search/physics?searchtype=author&query=Coppari%2C+F">Federica Coppari</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+H+J">Hae Ja Lee</a>, <a href="/search/physics?searchtype=author&query=Nagler%2C+B">Bob Nagler</a>, <a href="/search/physics?searchtype=author&query=Cunningham%2C+E">Eric Cunningham</a>, <a href="/search/physics?searchtype=author&query=Granados%2C+E">Eduardo Granados</a>, <a href="/search/physics?searchtype=author&query=Heimann%2C+P">Phil Heimann</a>, <a href="/search/physics?searchtype=author&query=Kraus%2C+R+G">Richard G. Kraus</a> , et al. (4 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2201.04254v1-abstract-short" style="display: inline;"> Combining an x-ray free electron laser (XFEL) with high power laser drivers enables the study of phase transitions, equation-of-state, grain growth, strength, and transformation pathways as a function of pressure to 100s GPa along different thermodynamic compression paths. Future high-repetition rate laser operation will enable data to be accumulated at >1 Hz which poses a number of experimental c… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.04254v1-abstract-full').style.display = 'inline'; document.getElementById('2201.04254v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.04254v1-abstract-full" style="display: none;"> Combining an x-ray free electron laser (XFEL) with high power laser drivers enables the study of phase transitions, equation-of-state, grain growth, strength, and transformation pathways as a function of pressure to 100s GPa along different thermodynamic compression paths. Future high-repetition rate laser operation will enable data to be accumulated at >1 Hz which poses a number of experimental challenges including the need to rapidly replenish the target. Here, we present a combined shock-compression and X-ray diffraction study on vol% epoxy(50)-crystalline grains(50) (slurry) targets, which can be fashioned into extruded ribbons for high repetition-rate operation. For shock-loaded NaCl-slurry samples, we observe pressure, density and temperature states within the embedded NaCl grains consistent with observations for shock-compressed single-crystal NaCl. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.04254v1-abstract-full').style.display = 'none'; document.getElementById('2201.04254v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 9 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.06410">arXiv:2109.06410</a> <span> [<a href="https://arxiv.org/pdf/2109.06410">pdf</a>, <a href="https://arxiv.org/format/2109.06410">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1107/S1600577522004076">10.1107/S1600577522004076 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Quantitative analysis of diffraction by liquids using a pink-spectrum X-ray source </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Singh%2C+S">Saransh Singh</a>, <a href="/search/physics?searchtype=author&query=Coleman%2C+A+L">Amy L. Coleman</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+S">Shuai Zhang</a>, <a href="/search/physics?searchtype=author&query=Coppari%2C+F">Federica Coppari</a>, <a href="/search/physics?searchtype=author&query=Gorman%2C+M+G">Martin G. Gorman</a>, <a href="/search/physics?searchtype=author&query=Smith%2C+R+F">Raymond F. Smith</a>, <a href="/search/physics?searchtype=author&query=Eggert%2C+J+H">Jon H. Eggert</a>, <a href="/search/physics?searchtype=author&query=Briggs%2C+R">Richard Briggs</a>, <a href="/search/physics?searchtype=author&query=Fratanduono%2C+D+E">Dayne E. Fratanduono</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.06410v1-abstract-short" style="display: inline;"> We describes a new approach for performing quantitative structure-factor analysis and density measurements of liquids using x-ray diffraction with a pink-spectrum x-ray source. The methodology corrects for the pink beam effect by performing a Taylor series expansion of the diffraction signal. The mean density, background scale factor, peak x-ray energy about which the expansion is performed, and t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.06410v1-abstract-full').style.display = 'inline'; document.getElementById('2109.06410v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.06410v1-abstract-full" style="display: none;"> We describes a new approach for performing quantitative structure-factor analysis and density measurements of liquids using x-ray diffraction with a pink-spectrum x-ray source. The methodology corrects for the pink beam effect by performing a Taylor series expansion of the diffraction signal. The mean density, background scale factor, peak x-ray energy about which the expansion is performed, and the cutoff radius for density measurement are estimated using the derivative-free optimization scheme. The formalism is demonstrated for a simulated radial distribution function for tin. Finally, the proposed methodology is applied to experimental data on shock compressed tin recorded at the Dynamic Compression Sector at the Advanced Photon Source, with derived densities comparing favorably to other experimental results and the equations of state of tin. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.06410v1-abstract-full').style.display = 'none'; document.getElementById('2109.06410v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">24 pages, 6 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Synchrotron Rad. (2022). 29, 1033-1042 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1806.10893">arXiv:1806.10893</a> <span> [<a href="https://arxiv.org/pdf/1806.10893">pdf</a>, <a href="https://arxiv.org/format/1806.10893">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Other Condensed Matter">cond-mat.other</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1063/1.5141360">10.1063/1.5141360 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Thermomechanical response of thickly tamped targets and diamond anvil cells under pulsed hard x-ray irradiation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Meza-Galvez%2C+J">J. Meza-Galvez</a>, <a href="/search/physics?searchtype=author&query=Gomez-Perez%2C+N">N. Gomez-Perez</a>, <a href="/search/physics?searchtype=author&query=Marshall%2C+A">A. Marshall</a>, <a href="/search/physics?searchtype=author&query=Coleman%2C+A+L">A. L. Coleman</a>, <a href="/search/physics?searchtype=author&query=Appel%2C+K">K. Appel</a>, <a href="/search/physics?searchtype=author&query=Liermann%2C+H+P">H. P. Liermann</a>, <a href="/search/physics?searchtype=author&query=McMahon%2C+M+I">M. I. McMahon</a>, <a href="/search/physics?searchtype=author&query=Konopkova%2C+Z">Z. Konopkova</a>, <a href="/search/physics?searchtype=author&query=McWilliams%2C+R+S">R. S. McWilliams</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1806.10893v2-abstract-short" style="display: inline;"> In the laboratory study of extreme conditions of temperature and density, the exposure of matter to high intensity radiation sources has been of central importance. Here we interrogate the performance of multi-layered targets in experiments involving high intensity, hard x-ray irradiation, motivated by the advent of extremely high brightness hard x-ray sources, such as free electron lasers and 4th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.10893v2-abstract-full').style.display = 'inline'; document.getElementById('1806.10893v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1806.10893v2-abstract-full" style="display: none;"> In the laboratory study of extreme conditions of temperature and density, the exposure of matter to high intensity radiation sources has been of central importance. Here we interrogate the performance of multi-layered targets in experiments involving high intensity, hard x-ray irradiation, motivated by the advent of extremely high brightness hard x-ray sources, such as free electron lasers and 4th-generation synchrotron facilities. Intense hard x-ray beams can deliver significant energy in targets having thick x-ray transparent layers (tampers) around samples of interest, for the study of novel states of matter and materials' dynamics. Heated-state lifetimes in such targets can approach the microsecond level, regardless of radiation pulse duration, enabling the exploration of conditions of local thermal and thermodynamic equilibrium at extreme temperature in solid density matter. The thermal and mechanical response of such thick layered targets following x-ray heating, including hydrodynamic relaxation and heat flow on picosecond to millisecond timescales, is modelled using radiation hydrocode simulation, finite element analysis, and thermodynamic calculations. Assessing the potential for target survival over one or more exposures, and resistance to damage arising from heating and resulting mechanical stresses, this study doubles as an investigation into the performance of diamond-anvil high pressure cells under high x-ray fluences. Long used in conjunction with synchrotron x-ray radiation and high power optical lasers, the strong confinement afforded by such cells suggests novel applications at emerging high intensity x-ray facilities and new routes to studying thermodynamic equilibrium states of warm, very dense matter. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.10893v2-abstract-full').style.display = 'none'; document.getElementById('1806.10893v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 December, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 June, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2018. </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a 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