| Title: |
X-ray powder diffraction in reflection geometry on multi-beam kJ-type laser facilities |
| Authors: |
Denoeud, A.; Hernandez, J.-A.; Vinci, T.; A., Benuzzi-Mounaix; Brygoo, S.; Berlioux, A.; Lefevre, F.; Sollier, A.; Videau, L.; Ravasio, A.; Guarguaglini, M.; Duthoit, L.; Loison, Didier; Brambrink, E. |
| Contributors: |
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); Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-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); ANR-16-CE21-0008,INSSICCA,Stratégies innovantes pour sécuriser les systèmes d'élevage dans les zones contaminées par la chlordécone. Une approche modèle développée dans les Antilles et applicable dans les zones contaminées à l'échelle mondiale(2016) |
| Source: |
ISSN: 0034-6748. |
| Publisher Information: |
CCSD; American Institute of Physics |
| Publication Year: |
2021 |
| Subject Terms: |
X ray lasers; Atoms; Beam plasma interactions; Geometry; Laser beams; Laser produced plasmas; Plasma diagnostics; Ultrafast lasers; Reflection geometry; X ray powder diffraction; Diffraction signals; Laser-plasma interactions; Polycrystalline iron; Pressure and temperature; X ray detectors; Transmission geometries; Thermodynamic conditions; Structural measurements; [PHYS]Physics [physics] |
| Description: |
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). |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/pmid/33514214; PUBMED: 33514214 |
| DOI: |
10.1063/5.0020261 |
| Availability: |
https://hal.science/hal-03130289; https://hal.science/hal-03130289v1/document; https://hal.science/hal-03130289v1/file/Denoeud%20et%20al%20-%202021%20-%20X-ray%20powder%20diffraction%20in%20reflection%20geometry.pdf; https://doi.org/10.1063/5.0020261 |
| Rights: |
https://about.hal.science/hal-authorisation-v1/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.C7F93069 |
| Database: |
BASE |