High-pressure chemistry of hydrocarbons relevant to planetary interiors and inertial confinement fusion

  • D. Kraus
  • , N. J. Hartley
  • , S. Frydrych
  • , A. K. Schuster
  • , K. Rohatsch
  • , M. Rödel
  • , T. E. Cowan
  • , S. Brown
  • , E. Cunningham
  • , T. Van Driel
  • , L. B. Fletcher
  • , E. Galtier
  • , E. J. Gamboa
  • , A. Laso Garcia
  • , D. O. Gericke
  • , E. Granados
  • , P. A. Heimann
  • , H. J. Lee
  • , M. J. Macdonald
  • , A. J. Mackinnon
  • E. E. McBride, I. Nam, P. Neumayer, A. Pak, A. Pelka, I. Prencipe, A. Ravasio, R. Redmer, A. M. Saunders, M. Schölmerich, M. Schörner, P. Sun, S. J. Turner, A. Zettl, R. W. Falcone, S. H. Glenzer, T. Döppner, J. Vorberger

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Abstract

Diamond formation in polystyrene (C8H8)n, which is laser-compressed and heated to conditions around 150 GPa and 5000 K, has recently been demonstrated in the laboratory [Kraus et al., Nat. Astron. 1, 606–611 (2017)]. Here, we show an extended analysis and comparison to first-principles simulations of the acquired data and their implications for planetary physics and inertial confinement fusion. Moreover, we discuss the advanced diagnostic capabilities of adding high-quality small angle X-ray scattering and spectrally resolved X-ray scattering to the platform, which shows great prospects of precisely studying the kinetics of chemical reactions in dense plasma environments at pressures exceeding 100 GPa.
Original languageEnglish
Article number056313
JournalPhysics of Plasmas
Volume25
Issue number5
DOIs
Publication statusPublished - 23 May 2018
Externally publishedYes

Bibliographical note

Funding Information:
This work was performed at the Matter at Extreme Conditions (MEC) instrument of LCLS, supported by the U.S. Department of Energy Office of Science, Fusion Energy Science under Contract No. SF00515. D.K., A.M.S., and R.W.F. acknowledge the support by the U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences, and by the National Nuclear Security Administration under Award Nos. DE-FG52–10NA29649 and DE-NA0001859. D.K., N.J.H., A.K.S., and K.R. were supported by the Helmholtz Association under VH-NG-1141. N.J.H. was supported by Kakenhi Grant No. 16K17846. SLAC HED was supported by DOE Office of Science, Fusion Energy Science, under FWP 100182. S.F. was supported by German Bundesministerium fur Bildung und Forschung Project No. 05P15RDFA1. S.T. and A.Z. acknowledge support by the Air Force Office of Scientific Research under Award No. FA9550–14-1–0323 which provided for synthesis of low-density frameworks, and support from the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02–05-CH11231, within the sp2-Bonded Materials Program (KC2207) which provided for structural and chemical characterization. S.T. also received support from a National Science Foundation fellowship. R.R. acknowledges support from the DFG via the Research Unit FOR 2440. The work of A.P., S.F., and T.D. was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract No. DE-AC52–07NA27344, and T.D. was supported by Laboratory Directed Research and Development (LDRD) Grant No. 18-ERD-033. R.W.F. acknowledges support of the University of California Center for Frontiers in High Energy Density Science.

Publisher Copyright:
© 2018 Author(s).

ASJC Scopus subject areas

  • Condensed Matter Physics

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