2015/05/31 by Grigory Kagan, D. Svyatskiy, H. G. Rinderknecht +6 · 38 citations
Earth and Planetary Sciences · Physics and Astronomy · #Atomic and Molecular Physics #Atomic physics #Classical mechanics #Distribution function #Fusion #High-pressure geophysics and materials #Ignition system #Inertial confinement fusion #Ion #Kinetic energy #Laser-Plasma Interactions and Diagnostics #Materials science #National Ignition Facility #Nuclear physics #Physics #Plasma #Thermodynamics #physics.plasm-ph
paper · pdf · doi:10.1103/physrevlett.115.105002
published in Physical Review Letters 115(10), 105002 (American Physical Society) · Revised version accepted for publication in PRL. "Copyright (2015) by the American Physical Society."
arxiv created 2015/08/10 · openalex publication_date 2015/09/03 · arxiv updated 2015/09/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The distribution function of suprathermal ions is found to be self-similar under conditions relevant to inertial confinement fusion hot spots. By utilizing this feature, interference between the hydrodynamic instabilities and kinetic effects is for the first time assessed quantitatively to find that the instabilities substantially aggravate the fusion reactivity reduction. The ion tail depletion is also shown to lower the experimentally inferred ion temperature, a novel kinetic effect that may explain the discrepancy between the exploding pusher experiments and rad-hydro simulations and contribute to the observation that temperature inferred from DD reaction products is lower than from DT at the National Ignition Facility.