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Design of an inertial fusion experiment exceeding the Lawson criterion for ignition

  • A. L. Kritcher
  • , A. B. Zylstra
  • , D. A. Callahan
  • , O. A. Hurricane
  • , C. R. Weber
  • , D. S. Clark
  • , C. V. Young
  • , J. E. Ralph
  • , D. T. Casey
  • , A. Pak
  • , O. L. Landen
  • , B. Bachmann
  • , K. L. Baker
  • , L. Berzak Hopkins
  • , S. D. Bhandarkar
  • , J. Biener
  • , R. M. Bionta
  • , N. W. Birge
  • , T. Braun
  • , T. M. Briggs
  • P. M. Celliers, H. Chen, C. Choate, L. Divol, T. Döppner, D. Fittinghoff, M. J. Edwards, M. Gatu Johnson, N. Gharibyan, S. Haan, K. D. Hahn, E. Hartouni, D. E. Hinkel, D. D. Ho, M. Hohenberger, J. P. Holder, H. Huang, N. Izumi, J. Jeet, O. Jones, S. M. Kerr, S. F. Khan, H. Geppert Kleinrath, V. Geppert Kleinrath, C. Kong, K. M. Lamb, S. Le Pape, N. C. Lemos, J. D. Lindl, B. J. Macgowan, A. J. Mackinnon, A. G. Macphee, E. V. Marley, K. Meaney, M. Millot, A. S. Moore, K. Newman, J. M.G. Di Nicola, A. Nikroo, R. Nora, P. K. Patel, N. G. Rice, M. S. Rubery, J. Sater, D. J. Schlossberg, S. M. Sepke, K. Sequoia, S. J. Shin, M. Stadermann, S. Stoupin, D. J. Strozzi, C. A. Thomas, R. Tommasini, C. Trosseille, E. R. Tubman, P. L. Volegov, C. Wild, D. T. Woods, S. T. Yang
  • Lawrence Livermore National Laboratory
  • MST-8, Los Alamos National Laboratory
  • Massachusetts Institute of Technology
  • Focused Energy Inc.
  • General Atomics
  • University of Rochester Laboratory for Laser Energetics
  • Diamond Materials GmbH

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

186 Citations (Scopus)

Résumé

We present the design of the first igniting fusion plasma in the laboratory by Lawson's criterion that produced 1.37 MJ of fusion energy, Hybrid-E experiment N210808 (August 8, 2021) [Phys. Rev. Lett. 129, 075001 (2022)10.1103/PhysRevLett.129.075001]. This design uses the indirect drive inertial confinement fusion approach to heat and compress a central "hot spot"of deuterium-tritium (DT) fuel using a surrounding dense DT fuel piston. Ignition occurs when the heating from absorption of α particles created in the fusion process overcomes the loss mechanisms in the system for a duration of time. This letter describes key design changes which enabled a ∼3-6× increase in an ignition figure of merit (generalized Lawson criterion) [Phys. Plasmas 28, 022704 (2021)1070-664X10.1063/5.0035583, Phys. Plasmas 25, 122704 (2018)1070-664X10.1063/1.5049595]) and an eightfold increase in fusion energy output compared to predecessor experiments. We present simulations of the hot-spot conditions for experiment N210808 that show fundamentally different behavior compared to predecessor experiments and simulated metrics that are consistent with N210808 reaching for the first time in the laboratory "ignition."

langue originaleAnglais
Numéro d'article025201
journalPhysical Review E
Volume106
Numéro de publication2
Les DOIs
étatPublié - 1 août 2022

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