Fuel-ion diffusion in shock-driven inertial confinement fusion implosions
| Autor: | C. E. Parker, R. D. Petrasso, Ari Le, Chikang Li, Stefano Atzeni, Hong Sio, Brandon Lahmann |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Nuclear reaction
Nuclear and High Energy Physics 01 natural sciences 7. Clean energy 010305 fluids & plasmas Ion Nuclear physics plasma physics shock waves inertial confinement fusion Physics::Plasma Physics 0103 physical sciences lcsh:Nuclear and particle physics. Atomic energy. Radioactivity Electrical and Electronic Engineering Diffusion (business) 010306 general physics Inertial confinement fusion Astrophysics::Galaxy Astrophysics Physics Diffusion theory Temperature scaling plasma physics inertial confinement fusion shock waves Atomic and Molecular Physics and Optics Shock (mechanics) Nuclear Energy and Engineering Yield (chemistry) lcsh:QC770-798 |
| Zdroj: | Matter and Radiation at Extremes Matter and Radiation at Extremes, Vol 4, Iss 5, Pp 055401-055401-5 (2019) |
| Popis: | The impact of fuel-ion diffusion in inertial confinement fusion implosions is assessed using nuclear reaction yield ratios and reaction histories. In T3He-gas-filled (with trace D) shock-driven implosions, the observed TT/T3He yield ratio is ∼2× lower than expected from temperature scaling. In D3He-gas-filled (with trace T) shock-driven implosions, the timing of the D3He reaction history is ∼50 ps earlier than those of the DT reaction histories, and average-ion hydrodynamic simulations cannot reconcile this timing difference. Both experimental observations are consistent with reduced T ions in the burn region as predicted by multi-ion diffusion theory and particle-in-cell simulations. |
| Databáze: | OpenAIRE |
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