Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Counter-propagating radiative shock experiments on the Orion laser and the formation of radiative precursors
Year:2017
Research Areas
  • Engineering
Information
Abstract
We present results from new experiments to study the dynamics of radiative shocks, reverse shocks and radiative precursors. Laser ablation of a solid piston by the Orion high-power laser at AWE Aldermaston UK was used to drive radiative shocks into a gas cell initially pressurised between 0.1 and 1.0 bar with different noble gases. Shocks propagated at 80 § 10 km/s and experienced strong radiative cooling resulting in post-shock compressions of £25 § 2. A combination of X-ray backlighting, optical self-emission streak imaging and interferometry (multi-frame and streak imaging) were used to simultaneously study both the shock front and the radiative precursor. These experiments present a new configuration to produce counter-propagating radiative shocks, allowing for the study of reverse shocks and providing a unique platform for numerical validation. In addition, the radiative shocks were able to expand freely into a large gas volume without being confined by the walls of the gas cell. This allows for 3-D effects of the shocks to be studied which, in principle, could lead to a more direct comparison to astrophysical phenomena. By maintaining a constant mass density between different gas fills the shocks evolved with similar hydrodynamics but the radiative precursor was found to extend significantly further in higher atomic number gases (»4 times further in xenon than neon). Finally, 1-D and 2- D radiative-hydrodynamic simulations are presented showing good agreement with the experimental data.
International
Si
JCR
Si
Title
High Energy Density Physics
ISBN
1574-1818
Impact factor JCR
0,908
Impact info
Volume
23
Journal number
From page
60
To page
72
Month
SIN MES
Ranking
Participants
  • Autor: T. Clayson (Blackett Laboratory, Imperial College London)
  • Autor: F. Suzuki-Vidal (Blackett Laboratory, Imperial College London)
  • Autor: S.V. Lebedev (Blackett Laboratory, Imperial College London)
  • Autor: G.F. Swadling (Blackett Laboratory, Imperial College London)
  • Autor: C. Stehle (b LERMA, Sorbonne Universits, UPMC Univ. Paris)
  • Autor: G.C. Burdiak (Blackett Laboratory, Imperial College London)
  • Autor: J.M. Foster (AWE Aldermaston, Reading RG7 4PR, United Kingdom)
  • Autor: J. Skidmore (AWE Aldermaston, Reading RG7 4PR, United Kingdom)
  • Autor: P. Graham (AWE Aldermaston, Reading RG7 4PR, United Kingdom)
  • Autor: E. Grumbrell (AWE Aldermaston, Reading RG7 4PR, United Kingdom)
  • Autor: S. Patankar (AWE Aldermaston, Reading RG7 4PR, United Kingdom)
  • Autor: C. Spindloe (Target Fabrication Group, Central Laser Facility, Rutherford Appleton Laboratory,)
  • Autor: U. Chaulagain (LERMA, Sorbonne Universits, UPMC Univ. Paris)
  • Autor: M. Kodlova (e ELI beamlines, Insitute of Physics ASCR, Na Slovance 1999/2, Prague, 182 21, Czech Republic)
  • Autor: J. Larour (g LPP, CNRS, Ecole polytechnique, UPMC Univ Paris)
  • Autor: R.L. Singh (LERMA, Sorbonne Universits, UPMC Univ. Paris 0)
  • Autor: R. Rodríguez (h Universidad de las Palmas de Gran Canaria, Spain)
  • Autor: J.M. Gil (h Universidad de las Palmas de Gran Canaria, Spain)
  • Autor: G. Espinosa (h Universidad de las Palmas de Gran Canaria, Spain)
  • Autor: Pedro Velarde Mayol (UPM)
  • Autor: C. Danson (AWE Aldermaston, Reading RG7 4PR, United Kingdom)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)