期刊
PHYSICS OF PLASMAS
卷 26, 期 5, 页码 -出版社
AIP Publishing
DOI: 10.1063/1.5098319
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资金
- U.S. DoE by LLNL [DE-AC52-07NA27344]
- LANL [DE-AC52-06NA52396]
Many inertial fusion designs use capsules made of beryllium, as its high mass ablation rate is advantageous. We present the first systematic experimental study of indirectly driven beryllium capsules with a cryogenic deuterium-tritium fuel layer. Subscale capsules, 80% of the nominal National Ignition Facility point design radius, show optimal performance with the remaining mass of similar to 6-7%. A buoyancy-drag mix model explains the implosion performance, suggesting that fuel-ablator mix is the dominant degradation mechanism. Increasing the capsule scale is predicted to reduce the impact of fuel-ablator mix and achieve high performance. Published under license by AIP Publishing.
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