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

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish (US)
Pages (from-to)269-272
Number of pages4
JournalAstrophysics and Space Science
Issue number1-3
StatePublished - Jan 2007


  • High compression rates
  • Quasi-isentropic compression

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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