X-ray powder diffraction in reflection geometry on multi-beam kJ-type laser facilities
| Autor: | A. Berlioux, Alessandra Ravasio, Alessandra Benuzzi-Mounaix, L. Duthoit, Tommaso Vinci, Stephanie Brygoo, Laurent Videau, Didier Loison, A. Denoeud, J.-A. Hernandez, M. Guarguaglini, Arnaud Sollier, Erik Brambrink, F. Lefevre |
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| Přispěvatelé: | Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), University of Oslo (UiO), Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique de Rennes (IPR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Agence Nationale de la Recherche, ANR: ANR-16-CE31-0008Norges Forskningsråd: 223272, ANR-16-CE31-0008,POMPEI,Propriétés de Mélanges de H2ONH3CH4 d'interet pour les intérieurs planétaires et les exoplanètes.(2016), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2021 |
| Předmět: |
Diffraction
Atoms Materials science Thermodynamic conditions X-ray detector Geometry 01 natural sciences Plasma diagnostics 010305 fluids & plasmas law.invention Optics law 0103 physical sciences Instrumentation Ultrafast lasers Pyrometer [PHYS]Physics [physics] 010302 applied physics Pressure and temperature X ray powder diffraction business.industry X ray lasers Reflection geometry X ray detectors Structural measurements Velocimetry Laser Beam plasma interactions X-ray crystallography Polycrystalline iron Laser produced plasmas business Diffraction signals Laser-plasma interactions Powder diffraction Laser beams Transmission geometries |
| Zdroj: | Review of Scientific Instruments Review of Scientific Instruments, 2021, 92 (1), pp.013902. ⟨10.1063/5.0020261⟩ Review of Scientific Instruments, American Institute of Physics, 2021, 92 (1), pp.013902. ⟨10.1063/5.0020261⟩ |
| ISSN: | 1089-7623 0034-6748 |
| DOI: | 10.1063/5.0020261 |
| Popis: | International audience; An ultrafast x-ray powder diffraction setup for laser-driven dynamic compression has been developed at the LULI2000 laser facility. X-ray diffraction is performed in reflection geometry from a quasi-monochromatic laser-generated plasma x-ray source. In comparison to a transmission geometry setup, this configuration allows us to probe only a small portion of the compressed sample, as well as to shield the detectors against the x-rays generated by the laser-plasma interaction on the front side of the target. Thus, this new platform facilitates probing of spatially and temporarily uniform thermodynamic conditions and enables us to study samples of a large range of atomic numbers, thicknesses, and compression dynamics. As a proof-of-concept, we report direct structural measurements of the bcc-hcp transition both in shock and ramp-compressed polycrystalline iron with diffraction signals recorded between 2θ ∼30° and ∼150°. In parallel, the pressure and temperature history of probed samples is measured by rear-side visible diagnostics (velocimetry and pyrometry). |
| Databáze: | OpenAIRE |
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