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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/2409.03625">arXiv:2409.03625</a> <span> [<a href="https://arxiv.org/pdf/2409.03625">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> </div> </div> <p class="title is-5 mathjax"> Formation of high-aspect-ratio nanocavity in LiF crystal using a femtosecond of x-ray FEL pulse </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Makarov%2C+S+S">Sergey S. Makarov</a>, <a href="/search/physics?searchtype=author&query=Grigoryev%2C+S+A">Sergey A. Grigoryev</a>, <a href="/search/physics?searchtype=author&query=Zhakhovsky%2C+V+V">Vasily V. Zhakhovsky</a>, <a href="/search/physics?searchtype=author&query=Chuprov%2C+P">Petr Chuprov</a>, <a href="/search/physics?searchtype=author&query=Pikuz%2C+T+A">Tatiana A. Pikuz</a>, <a href="/search/physics?searchtype=author&query=Inogamov%2C+N+A">Nail A. Inogamov</a>, <a href="/search/physics?searchtype=author&query=Khokhlov%2C+V+V">Victor V. Khokhlov</a>, <a href="/search/physics?searchtype=author&query=Petrov%2C+Y+V">Yuri V. Petrov</a>, <a href="/search/physics?searchtype=author&query=Perov%2C+E">Eugene Perov</a>, <a href="/search/physics?searchtype=author&query=Shepelev%2C+V">Vadim Shepelev</a>, <a href="/search/physics?searchtype=author&query=Shobu%2C+T">Takehisa Shobu</a>, <a href="/search/physics?searchtype=author&query=Tominaga%2C+A">Aki Tominaga</a>, <a href="/search/physics?searchtype=author&query=Rapp%2C+L">Ludovic Rapp</a>, <a href="/search/physics?searchtype=author&query=Rode%2C+A+V">Andrei V. Rode</a>, <a href="/search/physics?searchtype=author&query=Juodkazis%2C+S">Saulius Juodkazis</a>, <a href="/search/physics?searchtype=author&query=Makita%2C+M">Mikako Makita</a>, <a href="/search/physics?searchtype=author&query=Nakatsutsumi%2C+M">Motoaki Nakatsutsumi</a>, <a href="/search/physics?searchtype=author&query=Preston%2C+T+R">Thomas R. Preston</a>, <a href="/search/physics?searchtype=author&query=Appel%2C+K">Karen Appel</a>, <a href="/search/physics?searchtype=author&query=Konopkova%2C+Z">Zuzana Konopkova</a>, <a href="/search/physics?searchtype=author&query=Cerantola%2C+V">Valerio Cerantola</a>, <a href="/search/physics?searchtype=author&query=Brambrink%2C+E">Erik Brambrink</a>, <a href="/search/physics?searchtype=author&query=Schwinkendorf%2C+J">Jan-Patrick Schwinkendorf</a>, <a href="/search/physics?searchtype=author&query=Mohacsi%2C+I">Istv谩n Mohacsi</a>, <a href="/search/physics?searchtype=author&query=Vozda%2C+V">Vojtech Vozda</a> , et al. (8 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="2409.03625v1-abstract-short" style="display: inline;"> Sub-picosecond optical laser processing of metals is actively utilized for modification of a heated surface layer. But for deeper modification of different materials a laser in the hard x-ray range is required. Here, we demonstrate that a single 9-keV x-ray pulse from a free-electron laser can form a um-diameter cylindrical cavity with length of ~1 mm in LiF surrounded by shock-transformed materia… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.03625v1-abstract-full').style.display = 'inline'; document.getElementById('2409.03625v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.03625v1-abstract-full" style="display: none;"> Sub-picosecond optical laser processing of metals is actively utilized for modification of a heated surface layer. But for deeper modification of different materials a laser in the hard x-ray range is required. Here, we demonstrate that a single 9-keV x-ray pulse from a free-electron laser can form a um-diameter cylindrical cavity with length of ~1 mm in LiF surrounded by shock-transformed material. The plasma-generated shock wave with TPa-level pressure results in damage, melting and polymorphic transformations of any material, including transparent and non-transparent to conventional optical lasers. Moreover, cylindrical shocks can be utilized to obtain a considerable amount of exotic high-pressure polymorphs. Pressure wave propagation in LiF, radial material flow, formation of cracks and voids are analyzed via continuum and atomistic simulations revealing a sequence of processes leading to the final structure with the long cavity. Similar results can be produced with semiconductors and ceramics, which opens a new pathway for development of laser material processing with hard x-ray pulses. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.03625v1-abstract-full').style.display = 'none'; document.getElementById('2409.03625v1-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> 5 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.03301">arXiv:2406.03301</a> <span> [<a href="https://arxiv.org/pdf/2406.03301">pdf</a>, <a href="https://arxiv.org/format/2406.03301">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Effects of Mosaic Crystal Instrument Functions on X-ray Thomson Scattering Diagnostics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Gawne%2C+T">Thomas Gawne</a>, <a href="/search/physics?searchtype=author&query=Bellenbaum%2C+H">Hannah Bellenbaum</a>, <a href="/search/physics?searchtype=author&query=Fletcher%2C+L+B">Luke B. Fletcher</a>, <a href="/search/physics?searchtype=author&query=Appel%2C+K">Karen Appel</a>, <a href="/search/physics?searchtype=author&query=Baehtz%2C+C">Carsten Baehtz</a>, <a href="/search/physics?searchtype=author&query=Bouffetier%2C+V">Victorien Bouffetier</a>, <a href="/search/physics?searchtype=author&query=Brambrink%2C+E">Erik Brambrink</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+D">Danielle Brown</a>, <a href="/search/physics?searchtype=author&query=Cangi%2C+A">Attila Cangi</a>, <a href="/search/physics?searchtype=author&query=Descamps%2C+A">Adrien Descamps</a>, <a href="/search/physics?searchtype=author&query=G%C3%B6de%2C+S">Sebastian G枚de</a>, <a href="/search/physics?searchtype=author&query=Hartley%2C+N+J">Nicholas J. Hartley</a>, <a href="/search/physics?searchtype=author&query=Herbert%2C+M">Marie-Luise Herbert</a>, <a href="/search/physics?searchtype=author&query=Hesselbach%2C+P">Philipp Hesselbach</a>, <a href="/search/physics?searchtype=author&query=H%C3%B6ppner%2C+H">Hauke H枚ppner</a>, <a href="/search/physics?searchtype=author&query=Humphries%2C+O+S">Oliver S. Humphries</a>, <a href="/search/physics?searchtype=author&query=Kon%C3%B4pkov%C3%A1%2C+Z">Zuzana Kon么pkov谩</a>, <a href="/search/physics?searchtype=author&query=Garcia%2C+A+L">Alejandro Laso Garcia</a>, <a href="/search/physics?searchtype=author&query=Lindqvist%2C+B">Bj枚rn Lindqvist</a>, <a href="/search/physics?searchtype=author&query=L%C3%BCtgert%2C+J">Julian L眉tgert</a>, <a href="/search/physics?searchtype=author&query=MacDonald%2C+M+J">Michael J. MacDonald</a>, <a href="/search/physics?searchtype=author&query=Makita%2C+M">Mikako Makita</a>, <a href="/search/physics?searchtype=author&query=Martin%2C+W">Willow Martin</a>, <a href="/search/physics?searchtype=author&query=Mishchenko%2C+M">Mikhail Mishchenko</a>, <a href="/search/physics?searchtype=author&query=Moldabekov%2C+Z+A">Zhandos A. Moldabekov</a> , et al. (14 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="2406.03301v2-abstract-short" style="display: inline;"> Mosaic crystals, with their high integrated reflectivities, are widely-employed in spectrometers used to diagnose high energy density systems. X-ray Thomson scattering (XRTS) has emerged as a powerful diagnostic tool of these systems, providing in principle direct access to important properties such as the temperature via detailed balance. However, the measured XRTS spectrum is broadened by the sp… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.03301v2-abstract-full').style.display = 'inline'; document.getElementById('2406.03301v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.03301v2-abstract-full" style="display: none;"> Mosaic crystals, with their high integrated reflectivities, are widely-employed in spectrometers used to diagnose high energy density systems. X-ray Thomson scattering (XRTS) has emerged as a powerful diagnostic tool of these systems, providing in principle direct access to important properties such as the temperature via detailed balance. However, the measured XRTS spectrum is broadened by the spectrometer instrument function (IF), and without careful consideration of the IF one risks misdiagnosing system conditions. Here, we consider in detail the IF of 40 $渭$m and 100 $渭$m mosaic HAPG crystals, and how the broadening varies across the spectrometer in an energy range of 6.7-8.6 keV. Notably, we find a strong asymmetry in the shape of the IF towards higher energies. As an example, we consider the effect of the asymmetry in the IF on the temperature inferred via XRTS for simulated 80 eV CH plasmas, and find that the temperature can be overestimated if an approximate symmetric IF is used. We therefore expect a detailed consideration of the full IF will have an important impact on system properties inferred via XRTS in both forward modelling and model-free approaches. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.03301v2-abstract-full').style.display = 'none'; document.getElementById('2406.03301v2-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> 9 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </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">19 pages, 13 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/2403.02776">arXiv:2403.02776</a> <span> [<a href="https://arxiv.org/pdf/2403.02776">pdf</a>, <a href="https://arxiv.org/format/2403.02776">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> </div> </div> <p class="title is-5 mathjax"> Ultrahigh Resolution X-ray Thomson Scattering Measurements at the European XFEL </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Gawne%2C+T">Thomas Gawne</a>, <a href="/search/physics?searchtype=author&query=Moldabekov%2C+Z+A">Zhandos A. Moldabekov</a>, <a href="/search/physics?searchtype=author&query=Humphries%2C+O+S">Oliver S. Humphries</a>, <a href="/search/physics?searchtype=author&query=Appel%2C+K">Karen Appel</a>, <a href="/search/physics?searchtype=author&query=B%C3%A4htz%2C+C">Carsten B盲htz</a>, <a href="/search/physics?searchtype=author&query=Bouffetier%2C+V">Victorien Bouffetier</a>, <a href="/search/physics?searchtype=author&query=Brambrink%2C+E">Erik Brambrink</a>, <a href="/search/physics?searchtype=author&query=Cangi%2C+A">Attila Cangi</a>, <a href="/search/physics?searchtype=author&query=G%C3%B6de%2C+S">Sebastian G枚de</a>, <a href="/search/physics?searchtype=author&query=Kon%C3%B4pkov%C3%A1%2C+Z">Zuzana Kon么pkov谩</a>, <a href="/search/physics?searchtype=author&query=Makita%2C+M">Mikako Makita</a>, <a href="/search/physics?searchtype=author&query=Mishchenko%2C+M">Mikhail Mishchenko</a>, <a href="/search/physics?searchtype=author&query=Nakatsutsumi%2C+M">Motoaki Nakatsutsumi</a>, <a href="/search/physics?searchtype=author&query=Ramakrishna%2C+K">Kushal Ramakrishna</a>, <a href="/search/physics?searchtype=author&query=Randolph%2C+L">Lisa Randolph</a>, <a href="/search/physics?searchtype=author&query=Schwalbe%2C+S">Sebastian Schwalbe</a>, <a href="/search/physics?searchtype=author&query=Vorberger%2C+J">Jan Vorberger</a>, <a href="/search/physics?searchtype=author&query=Wollenweber%2C+L">Lennart Wollenweber</a>, <a href="/search/physics?searchtype=author&query=Zastrau%2C+U">Ulf Zastrau</a>, <a href="/search/physics?searchtype=author&query=Dornheim%2C+T">Tobias Dornheim</a>, <a href="/search/physics?searchtype=author&query=Preston%2C+T+R">Thomas R. Preston</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="2403.02776v3-abstract-short" style="display: inline;"> Using a novel ultrahigh resolution ($螖E \sim 0.1\,$eV) setup to measure electronic features in x-ray Thomson scattering (XRTS) experiments at the European XFEL in Germany, we have studied the collective plasmon excitation in aluminium at ambient conditions, which we can measure very accurately even at low momentum transfers. As a result, we can resolve previously reported discrepancies between ab… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.02776v3-abstract-full').style.display = 'inline'; document.getElementById('2403.02776v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2403.02776v3-abstract-full" style="display: none;"> Using a novel ultrahigh resolution ($螖E \sim 0.1\,$eV) setup to measure electronic features in x-ray Thomson scattering (XRTS) experiments at the European XFEL in Germany, we have studied the collective plasmon excitation in aluminium at ambient conditions, which we can measure very accurately even at low momentum transfers. As a result, we can resolve previously reported discrepancies between ab initio time-dependent density functional theory simulations and experimental observations. The demonstrated capability for high-resolution XRTS measurements will be a game changer for the diagnosis of experiments with matter under extreme densities, temperatures, and pressures, and unlock the full potential of state-of-the-art x-ray free electron laser (XFEL) facilities to study planetary interior conditions, to understand inertial confinement fusion applications, and for material science and discovery. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.02776v3-abstract-full').style.display = 'none'; document.getElementById('2403.02776v3-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> 16 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.07774">arXiv:2311.07774</a> <span> [<a href="https://arxiv.org/pdf/2311.07774">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Earth and Planetary Astrophysics">astro-ph.EP</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/10.1103/PhysRevResearch.6.L022029">10.1103/PhysRevResearch.6.L022029 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Speed of sound in methane under conditions of planetary interiors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=White%2C+T+G">Thomas G. White</a>, <a href="/search/physics?searchtype=author&query=Poole%2C+H">Hannah Poole</a>, <a href="/search/physics?searchtype=author&query=McBride%2C+E+E">Emma E. McBride</a>, <a href="/search/physics?searchtype=author&query=Oliver%2C+M">Matthew Oliver</a>, <a href="/search/physics?searchtype=author&query=Descamps%2C+A">Adrien Descamps</a>, <a href="/search/physics?searchtype=author&query=Fletcher%2C+L+B">Luke B. Fletcher</a>, <a href="/search/physics?searchtype=author&query=Angermeier%2C+W+A">W. Alex Angermeier</a>, <a href="/search/physics?searchtype=author&query=Allen%2C+C+H">Cameron H. Allen</a>, <a href="/search/physics?searchtype=author&query=Appel%2C+K">Karen Appel</a>, <a href="/search/physics?searchtype=author&query=Condamine%2C+F+P">Florian P. Condamine</a>, <a href="/search/physics?searchtype=author&query=Curry%2C+C+B">Chandra B. Curry</a>, <a href="/search/physics?searchtype=author&query=Dallari%2C+F">Francesco Dallari</a>, <a href="/search/physics?searchtype=author&query=Funk%2C+S">Stefan Funk</a>, <a href="/search/physics?searchtype=author&query=Galtier%2C+E">Eric Galtier</a>, <a href="/search/physics?searchtype=author&query=Gamboa%2C+E+J">Eliseo J. Gamboa</a>, <a href="/search/physics?searchtype=author&query=Gauthier%2C+M">Maxence Gauthier</a>, <a href="/search/physics?searchtype=author&query=Graham%2C+P">Peter Graham</a>, <a href="/search/physics?searchtype=author&query=Goede%2C+S">Sebastian Goede</a>, <a href="/search/physics?searchtype=author&query=Haden%2C+D">Daniel Haden</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+J+B">Jongjin B. Kim</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+H+J">Hae Ja Lee</a>, <a href="/search/physics?searchtype=author&query=Ofori-Okai%2C+B+K">Benjamin K. Ofori-Okai</a>, <a href="/search/physics?searchtype=author&query=Richardson%2C+S">Scott Richardson</a>, <a href="/search/physics?searchtype=author&query=Rigby%2C+A">Alex Rigby</a>, <a href="/search/physics?searchtype=author&query=Schoenwaelder%2C+C">Christopher Schoenwaelder</a> , et al. (10 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="2311.07774v2-abstract-short" style="display: inline;"> We present direct observations of acoustic waves in warm dense matter. We analyze wave-number- and energy-resolved x-ray spectra taken from warm dense methane created by laser heating a cryogenic liquid jet. X-ray diffraction and inelastic free-electron scattering yield sample conditions of 0.3$\pm$0.1 eV and 0.8$\pm$0.1 g/cm$^3$, corresponding to a pressure of $\sim$13 GPa. Inelastic x-ray scatte… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.07774v2-abstract-full').style.display = 'inline'; document.getElementById('2311.07774v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.07774v2-abstract-full" style="display: none;"> We present direct observations of acoustic waves in warm dense matter. We analyze wave-number- and energy-resolved x-ray spectra taken from warm dense methane created by laser heating a cryogenic liquid jet. X-ray diffraction and inelastic free-electron scattering yield sample conditions of 0.3$\pm$0.1 eV and 0.8$\pm$0.1 g/cm$^3$, corresponding to a pressure of $\sim$13 GPa. Inelastic x-ray scattering was used to observe the collective oscillations of the ions. With a highly improved energy resolution of $\sim$50 meV, we could clearly distinguish the Brillouin peaks from the quasielastic Rayleigh feature. Data at different wave numbers were utilized to derive a sound speed of 5.9$\pm$0.5 km/s, marking a high-temperature data point for methane and demonstrating consistency with Birch's law in this parameter regime. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.07774v2-abstract-full').style.display = 'none'; document.getElementById('2311.07774v2-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> 3 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </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">7 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review Research 6 (2024) L022029 </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> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1806.02398">arXiv:1806.02398</a> <span> [<a href="https://arxiv.org/pdf/1806.02398">pdf</a>, <a href="https://arxiv.org/ps/1806.02398">ps</a>, <a href="https://arxiv.org/format/1806.02398">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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/10.1063/1.5084054">10.1063/1.5084054 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Setup for meV-resolution inelastic X-ray scattering measurements at the Matter in Extreme Conditions Endstation at the LCLS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=McBride%2C+E+E">E. E. McBride</a>, <a href="/search/physics?searchtype=author&query=White%2C+T+G">T. G. White</a>, <a href="/search/physics?searchtype=author&query=Descamps%2C+A">A. Descamps</a>, <a href="/search/physics?searchtype=author&query=Fletcher%2C+L+B">L. B. Fletcher</a>, <a href="/search/physics?searchtype=author&query=Appel%2C+K">K. Appel</a>, <a href="/search/physics?searchtype=author&query=Condamine%2C+F">F. Condamine</a>, <a href="/search/physics?searchtype=author&query=Curry%2C+C+B">C. B. Curry</a>, <a href="/search/physics?searchtype=author&query=Dallari%2C+F">F. Dallari</a>, <a href="/search/physics?searchtype=author&query=Funk%2C+S">S. Funk</a>, <a href="/search/physics?searchtype=author&query=Galtier%2C+E">E. Galtier</a>, <a href="/search/physics?searchtype=author&query=Gauthier%2C+M">M. Gauthier</a>, <a href="/search/physics?searchtype=author&query=Goede%2C+S">S. Goede</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+J+B">J. B. Kim</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+H+J">H. J. Lee</a>, <a href="/search/physics?searchtype=author&query=Ofori-Okai%2C+B+K">B. K. Ofori-Okai</a>, <a href="/search/physics?searchtype=author&query=Oliver%2C+M">M. Oliver</a>, <a href="/search/physics?searchtype=author&query=Rigby%2C+A">A. Rigby</a>, <a href="/search/physics?searchtype=author&query=Schoenwaelder%2C+C">C. Schoenwaelder</a>, <a href="/search/physics?searchtype=author&query=Sun%2C+P">P. Sun</a>, <a href="/search/physics?searchtype=author&query=Tschentscher%2C+T">Th. Tschentscher</a>, <a href="/search/physics?searchtype=author&query=Witte%2C+B+B+L">B. B. L. Witte</a>, <a href="/search/physics?searchtype=author&query=Zastrau%2C+U">U. Zastrau</a>, <a href="/search/physics?searchtype=author&query=Gregori%2C+G">G. Gregori</a>, <a href="/search/physics?searchtype=author&query=Nagler%2C+B">B. Nagler</a>, <a href="/search/physics?searchtype=author&query=Hastings%2C+J">J. Hastings</a> , et al. (2 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="1806.02398v1-abstract-short" style="display: inline;"> We describe a setup for performing inelastic X-ray scattering measurements at the Matter in Extreme Conditions (MEC) endstation of the Linac Coherent Light Source (LCLS). This technique is capable of performing high-, meV-resolution measurements of dynamic ion features in both crystalline and non-crystalline materials. A four-bounce silicon (533) monochromator was used in conjunction with three si… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.02398v1-abstract-full').style.display = 'inline'; document.getElementById('1806.02398v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1806.02398v1-abstract-full" style="display: none;"> We describe a setup for performing inelastic X-ray scattering measurements at the Matter in Extreme Conditions (MEC) endstation of the Linac Coherent Light Source (LCLS). This technique is capable of performing high-, meV-resolution measurements of dynamic ion features in both crystalline and non-crystalline materials. A four-bounce silicon (533) monochromator was used in conjunction with three silicon (533) diced crystal analyzers to provide an energy resolution of ~50 meV over a range of ~500 meV in single shot measurements. In addition to the instrument resolution function, we demonstrate the measurement of longitudinal acoustic phonon modes in polycrystalline diamond. Furthermore, this setup may be combined with the high intensity laser drivers available at MEC to create warm dense matter, and subsequently measure ion acoustic modes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.02398v1-abstract-full').style.display = 'none'; document.getElementById('1806.02398v1-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> 5 June, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2018. </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">Proceedings for High Temperature Plasma Diagnostics</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1712.07301">arXiv:1712.07301</a> <span> [<a href="https://arxiv.org/pdf/1712.07301">pdf</a>, <a href="https://arxiv.org/format/1712.07301">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Space Physics">physics.space-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Solar and Stellar Astrophysics">astro-ph.SR</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/10.1002/2017JA024700">10.1002/2017JA024700 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Using Forbush decreases to derive the transit time of ICMEs propagating from 1 AU to Mars </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=von+Forstner%2C+J+L+F">Johan L. Freiherr von Forstner</a>, <a href="/search/physics?searchtype=author&query=Guo%2C+J">Jingnan Guo</a>, <a href="/search/physics?searchtype=author&query=Wimmer-Schweingruber%2C+R+F">Robert F. Wimmer-Schweingruber</a>, <a href="/search/physics?searchtype=author&query=Hassler%2C+D+M">Donald M. Hassler</a>, <a href="/search/physics?searchtype=author&query=Temmer%2C+M">Manuela Temmer</a>, <a href="/search/physics?searchtype=author&query=Dumbovi%C4%87%2C+M">Mateja Dumbovi膰</a>, <a href="/search/physics?searchtype=author&query=Jian%2C+L+K">Lan K. Jian</a>, <a href="/search/physics?searchtype=author&query=Appel%2C+J+K">Jan K. Appel</a>, <a href="/search/physics?searchtype=author&query=%C4%8Calogovi%C4%87%2C+J">Ja拧a 膶alogovi膰</a>, <a href="/search/physics?searchtype=author&query=Ehresmann%2C+B">Bent Ehresmann</a>, <a href="/search/physics?searchtype=author&query=Heber%2C+B">Bernd Heber</a>, <a href="/search/physics?searchtype=author&query=Lohf%2C+H">Henning Lohf</a>, <a href="/search/physics?searchtype=author&query=Posner%2C+A">Arik Posner</a>, <a href="/search/physics?searchtype=author&query=Steigies%2C+C+T">Christian T. Steigies</a>, <a href="/search/physics?searchtype=author&query=Vr%C5%A1nak%2C+B">Bojan Vr拧nak</a>, <a href="/search/physics?searchtype=author&query=Zeitlin%2C+C+J">Cary J. Zeitlin</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="1712.07301v1-abstract-short" style="display: inline;"> The propagation of 15 interplanetary coronal mass ejections (ICMEs) from Earth's orbit (1 AU) to Mars (~ 1.5 AU) has been studied with their propagation speed estimated from both measurements and simulations. The enhancement of magnetic fields related to ICMEs and their shock fronts cause the so-called Forbush decrease, which can be de- tected as a reduction of galactic cosmic rays measured on-gro… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1712.07301v1-abstract-full').style.display = 'inline'; document.getElementById('1712.07301v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1712.07301v1-abstract-full" style="display: none;"> The propagation of 15 interplanetary coronal mass ejections (ICMEs) from Earth's orbit (1 AU) to Mars (~ 1.5 AU) has been studied with their propagation speed estimated from both measurements and simulations. The enhancement of magnetic fields related to ICMEs and their shock fronts cause the so-called Forbush decrease, which can be de- tected as a reduction of galactic cosmic rays measured on-ground. We have used galactic cosmic ray (GCR) data from in-situ measurements at Earth, from both STEREO A and B as well as GCR measurements by the Radiation Assessment Detector (RAD) instrument onboard Mars Science Laboratory (MSL) on the surface of Mars. A set of ICME events has been selected during the periods when Earth (or STEREO A or B) and Mars locations were nearly aligned on the same side of the Sun in the ecliptic plane (so-called opposition phase). Such lineups allow us to estimate the ICMEs' transit times between 1 and 1.5 AU by estimating the delay time of the corresponding Forbush decreases measured at each location. We investigate the evolution of their propagation speeds before and after passing Earth's orbit and find that the deceleration of ICMEs due to their interaction with the ambient solar wind may continue beyond 1 AU. We also find a substantial variance of the speed evolution among different events revealing the dynamic and diverse nature of eruptive solar events. Furthermore, the results are compared to simulation data obtained from two CME propagation models, namely the Drag-Based Model and ENLIL plus cone model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1712.07301v1-abstract-full').style.display = 'none'; document.getElementById('1712.07301v1-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> 19 December, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2017. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1507.03473">arXiv:1507.03473</a> <span> [<a href="https://arxiv.org/pdf/1507.03473">pdf</a>, <a href="https://arxiv.org/ps/1507.03473">ps</a>, <a href="https://arxiv.org/format/1507.03473">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Earth and Planetary Astrophysics">astro-ph.EP</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Solar and Stellar Astrophysics">astro-ph.SR</span> <span class="tag is-small is-grey 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="Space Physics">physics.space-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/10.1088/0004-637X/810/1/24">10.1088/0004-637X/810/1/24 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Modeling the variations of Dose Rate measured by RAD during the first MSL Martian year: 2012-2014 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Guo%2C+J">Jingnan Guo</a>, <a href="/search/physics?searchtype=author&query=Zeitlin%2C+C">Cary Zeitlin</a>, <a href="/search/physics?searchtype=author&query=Wimmer-Schweingruber%2C+R+F">Robert F. Wimmer-Schweingruber</a>, <a href="/search/physics?searchtype=author&query=Rafkin%2C+S">Scot Rafkin</a>, <a href="/search/physics?searchtype=author&query=Hassler%2C+D+M">Donald M. Hassler</a>, <a href="/search/physics?searchtype=author&query=Posner%2C+A">Arik Posner</a>, <a href="/search/physics?searchtype=author&query=Heber%2C+B">Bernd Heber</a>, <a href="/search/physics?searchtype=author&query=Koehler%2C+J">Jan Koehler</a>, <a href="/search/physics?searchtype=author&query=Ehresmann%2C+B">Bent Ehresmann</a>, <a href="/search/physics?searchtype=author&query=Appel%2C+J+K">Jan K. Appel</a>, <a href="/search/physics?searchtype=author&query=Boehm%2C+E">Eckart Boehm</a>, <a href="/search/physics?searchtype=author&query=Boettcher%2C+S">Stephan Boettcher</a>, <a href="/search/physics?searchtype=author&query=Burmeister%2C+S">Soenke Burmeister</a>, <a href="/search/physics?searchtype=author&query=Brinza%2C+D+E">David E. Brinza</a>, <a href="/search/physics?searchtype=author&query=Lohf%2C+H">Henning Lohf</a>, <a href="/search/physics?searchtype=author&query=Martin%2C+C">Cesar Martin</a>, <a href="/search/physics?searchtype=author&query=Kahanpaeae%2C+H">H. Kahanpaeae</a>, <a href="/search/physics?searchtype=author&query=Reitz%2C+G">Guenther Reitz</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="1507.03473v2-abstract-short" style="display: inline;"> The Radiation Assessment Detector (RAD), on board Mars Science Laboratory's (MSL) rover Curiosity, measures the {energy spectra} of both energetic charged and neutral particles along with the radiation dose rate at the surface of Mars. With these first-ever measurements on the Martian surface, RAD observed several effects influencing the galactic cosmic ray (GCR) induced surface radiation dose con… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.03473v2-abstract-full').style.display = 'inline'; document.getElementById('1507.03473v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1507.03473v2-abstract-full" style="display: none;"> The Radiation Assessment Detector (RAD), on board Mars Science Laboratory's (MSL) rover Curiosity, measures the {energy spectra} of both energetic charged and neutral particles along with the radiation dose rate at the surface of Mars. With these first-ever measurements on the Martian surface, RAD observed several effects influencing the galactic cosmic ray (GCR) induced surface radiation dose concurrently: [a] short-term diurnal variations of the Martian atmospheric pressure caused by daily thermal tides, [b] long-term seasonal pressure changes in the Martian atmosphere, and [c] the modulation of the primary GCR flux by the heliospheric magnetic field, which correlates with long-term solar activity and the rotation of the Sun. The RAD surface dose measurements, along with the surface pressure data and the solar modulation factor, are analysed and fitted to empirical models which quantitatively demonstrate} how the long-term influences ([b] and [c]) are related to the measured dose rates. {Correspondingly we can estimate dose rate and dose equivalents under different solar modulations and different atmospheric conditions, thus allowing empirical predictions of the Martian surface radiation environment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.03473v2-abstract-full').style.display = 'none'; document.getElementById('1507.03473v2-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> 21 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 July, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2015. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1503.06631">arXiv:1503.06631</a> <span> [<a href="https://arxiv.org/pdf/1503.06631">pdf</a>, <a href="https://arxiv.org/ps/1503.06631">ps</a>, <a href="https://arxiv.org/format/1503.06631">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Space Physics">physics.space-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Solar and Stellar Astrophysics">astro-ph.SR</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/10.1051/0004-6361/201525680">10.1051/0004-6361/201525680 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Variations of dose rate observed by MSL/RAD in transit to Mars </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Guo%2C+J">Jingnan Guo</a>, <a href="/search/physics?searchtype=author&query=Zeitlin%2C+C">Cary Zeitlin</a>, <a href="/search/physics?searchtype=author&query=Wimmer-Schweingruber%2C+R+F">Robert F. Wimmer-Schweingruber</a>, <a href="/search/physics?searchtype=author&query=Hassler%2C+D+M">Donald M. Hassler</a>, <a href="/search/physics?searchtype=author&query=Posner%2C+A">Arik Posner</a>, <a href="/search/physics?searchtype=author&query=Heber%2C+B">Bernd Heber</a>, <a href="/search/physics?searchtype=author&query=K%C3%B6hler%2C+J">Jan K枚hler</a>, <a href="/search/physics?searchtype=author&query=Rafkin%2C+S">Scot Rafkin</a>, <a href="/search/physics?searchtype=author&query=Ehresmann%2C+B">Bent Ehresmann</a>, <a href="/search/physics?searchtype=author&query=Appel%2C+J+K">Jan K. Appel</a>, <a href="/search/physics?searchtype=author&query=B%C3%B6hm%2C+E">Eckart B枚hm</a>, <a href="/search/physics?searchtype=author&query=B%C3%B6ttcher%2C+S">Stephan B枚ttcher</a>, <a href="/search/physics?searchtype=author&query=Burmeister%2C+S">S枚nke Burmeister</a>, <a href="/search/physics?searchtype=author&query=Brinza%2C+D+E">David E. Brinza</a>, <a href="/search/physics?searchtype=author&query=Lohf%2C+H">Henning Lohf</a>, <a href="/search/physics?searchtype=author&query=Martin%2C+C">Cesar Martin</a>, <a href="/search/physics?searchtype=author&query=Reitz%2C+G">G眉nther Reitz</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="1503.06631v1-abstract-short" style="display: inline;"> Aims: To predict the cruise radiation environment related to future human missions to Mars, the correlation between solar modulation potential and the dose rate measured by the Radiation Assessment Detector (RAD) has been analyzed and empirical models have been employed to quantify this correlation. Methods: The instrument RAD, onboard Mars Science Laboratory's (MSL) rover Curiosity, measures a br… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1503.06631v1-abstract-full').style.display = 'inline'; document.getElementById('1503.06631v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1503.06631v1-abstract-full" style="display: none;"> Aims: To predict the cruise radiation environment related to future human missions to Mars, the correlation between solar modulation potential and the dose rate measured by the Radiation Assessment Detector (RAD) has been analyzed and empirical models have been employed to quantify this correlation. Methods: The instrument RAD, onboard Mars Science Laboratory's (MSL) rover Curiosity, measures a broad spectrum of energetic particles along with the radiation dose rate during the 253-day cruise phase as well as on the surface of Mars. With these first ever measurements inside a spacecraft from Earth to Mars, RAD observed the impulsive enhancement of dose rate during solar particle events as well as a gradual evolution of the galactic cosmic ray (GCR) induced radiation dose rate due to the modulation of the primary GCR flux by the solar magnetic field, which correlates with long-term solar activities and heliospheric rotation. Results: We analyzed the dependence of the dose rate measured by RAD on solar modulation potentials and estimated the dose rate and dose equivalent under different solar modulation conditions. These estimations help us to have approximate predictions of the cruise radiation environment, such as the accumulated dose equivalent associated with future human missions to Mars. Conclusions: The predicted dose equivalent rate during solar maximum conditions could be as low as one-fourth of the current RAD cruise measurement. However, future measurements during solar maximum and minimum periods are essential to validate our estimations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1503.06631v1-abstract-full').style.display = 'none'; document.getElementById('1503.06631v1-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> 23 March, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2015. </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">6 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> A&A 577, A58 (2015) </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a 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