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First results of radiation-driven, layered deuterium-tritium implosions with a 3-shock adiabat-shaped drive at the National Ignition Facility

  • V. A. Smalyuk
  • , H. F. Robey
  • , T. Döppner
  • , O. S. Jones
  • , J. L. Milovich
  • , B. Bachmann
  • , K. L. Baker
  • , L. F. Berzak Hopkins
  • , E. Bond
  • , D. A. Callahan
  • , D. T. Casey
  • , P. M. Celliers
  • , C. Cerjan
  • , D. S. Clark
  • , S. N. Dixit
  • , M. J. Edwards
  • , E. Giraldez
  • , S. W. Haan
  • , A. V. Hamza
  • , M. Hohenberger
  • D. Hoover, O. A. Hurricane, K. S. Jancaitis, J. J. Kroll, K. N. Lafortune, O. L. Landen, B. J. MacGowan, A. G. MacPhee, A. Nikroo, A. Pak, P. K. Patel, J. L. Peterson, C. R. Weber, C. C. Widmayer, C. Yeamans

Research output: Contribution to journalArticlepeer-review

Abstract

Radiation-driven, layered deuterium-tritium plastic capsule implosions were carried out using a new, 3-shock "adiabat-shaped" drive on the National Ignition Facility. The purpose of adiabat shaping is to use a stronger first shock, reducing hydrodynamic instability growth in the ablator. The shock can decay before reaching the deuterium-tritium fuel leaving it on a low adiabat and allowing higher fuel compression. The fuel areal density was improved by ∼25% with this new drive compared to similar "high-foot" implosions, while neutron yield was improved by more than 4 times, compared to "low-foot" implosions driven at the same compression and implosion velocity.

Original languageEnglish (US)
Article number080703
JournalPhysics of Plasmas
Volume22
Issue number8
DOIs
StatePublished - Aug 1 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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