Astrophysics and Space Science

, Volume 307, Issue 1–3, pp 269–272

Graded-Density Reservoirs for Accessing High Stress Low Temperature Material States

  • Raymond F. Smith
  • K. Thomas Lorenz
  • Darwin Ho
  • Bruce A. Remington
  • Alex Hamza
  • John Rogers
  • Stephen Pollaine
  • Seokwoo Jeon
  • Yun-Suk Nam
  • J. Kilkenny
Original Article

Abstract

In recently developed laser-driven shockless compression experiments an ablatively driven shock in a primary target is transformed into a ramp compression wave in a secondary target via unloading followed by stagnation across an intermediate vacuum gap. Current limitations on the achievable peak longitudinal stresses are limited by the ability of shaping the temporal profile of the ramp compression pulse. We report on new techniques using graded density reservoirs for shaping the loading profile and extending these techniques to high peak pressures.

Keywords

Quasi-isentropic compression High compression rates 

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Copyright information

© Springer Science + Business Media B.V. 2006

Authors and Affiliations

  • Raymond F. Smith
    • 1
  • K. Thomas Lorenz
    • 1
  • Darwin Ho
    • 1
  • Bruce A. Remington
    • 1
  • Alex Hamza
    • 1
  • John Rogers
    • 2
  • Stephen Pollaine
    • 1
  • Seokwoo Jeon
    • 2
  • Yun-Suk Nam
    • 2
  • J. Kilkenny
    • 3
  1. 1.Lawrence Livermore National LaboratoryLivermoreUSA
  2. 2.University of Illinois at Urbana-ChampaignIllinoisUSA
  3. 3.General AtomicsSan DiegoUSA

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