Journal
PHYSICAL REVIEW E
Volume 90, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.90.011102
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Funding
- US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
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Hydrodynamic instabilities are a major obstacle in the quest to achieve ignition as they cause preexisting capsule defects to grow and ultimately quench the fusion burn in experiments at the National Ignition Facility. Unstable growth at the ablation front has been dramatically reduced in implosions with high-foot drives as measured using x-ray radiography of modulations at the most dangerous wavelengths (Legendre mode numbers of 30-90). These growth reductions have helped to improve the performance of layered DT implosions reported by O. A. Hurricane et al. [Nature (London) 506, 343 (2014)], when compared to previous low-foot experiments, demonstrating the value of stabilizing ablation-front growth and providing directions for future ignition designs.
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