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Implosion performance of subscale beryllium capsules on the NIF.
- Source :
- Physics of Plasmas; May2019, Vol. 26 Issue 5, pN.PAG-N.PAG, 10p, 2 Color Photographs, 2 Diagrams, 2 Charts, 5 Graphs
- Publication Year :
- 2019
-
Abstract
- 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 ∼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. [ABSTRACT FROM AUTHOR]
- Subjects :
- INERTIAL confinement fusion
DEUTERIUM
BERYLLIUM
PERFORMANCES
Subjects
Details
- Language :
- English
- ISSN :
- 1070664X
- Volume :
- 26
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Physics of Plasmas
- Publication Type :
- Academic Journal
- Accession number :
- 136773366
- Full Text :
- https://doi.org/10.1063/1.5098319