Reduced instability growth with high-adiabat high-foot implosions at the National Ignition Facility

D. T. Casey; V. A. Smalyuk; K. S. Raman; J. L. Peterson; L. Berzak Hopkins; D. A. Callahan; D. S. Clark; E. L. Dewald; T. R. Dittrich; S. W. Haan; D. E. Hinkel; D. Hoover; O. A. Hurricane; J. J. Kroll; O. L. Landen; A. S. Moore; A. Nikroo; H. S. Park; B. A. Remington; H. F. Robey; J. R. Rygg; J. D. Salmonson; R. Tommasini; K. Widmann

doi:10.1103/PhysRevE.90.011102

Reduced instability growth with high-adiabat high-foot implosions at the National Ignition Facility

D. T. Casey, V. A. Smalyuk, K. S. Raman, J. L. Peterson, L. Berzak Hopkins, D. A. Callahan, D. S. Clark, E. L. Dewald, T. R. Dittrich, S. W. Haan, D. E. Hinkel, D. Hoover, O. A. Hurricane, J. J. Kroll, O. L. Landen, A. S. Moore, A. Nikroo, H. S. Park, B. A. Remington, H. F. RobeyJ. R. Rygg, J. D. Salmonson, R. Tommasini, K. Widmann

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Abstract

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)10.1038/nature13008], when compared to previous "low-foot" experiments, demonstrating the value of stabilizing ablation-front growth and providing directions for future ignition designs.

Original language	English (US)
Article number	011102
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	90
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevE.90.011102
State	Published - Jul 25 2014
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Statistical and Nonlinear Physics
Statistics and Probability
General Medicine

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10.1103/PhysRevE.90.011102

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Casey, D. T., Smalyuk, V. A., Raman, K. S., Peterson, J. L., Berzak Hopkins, L., Callahan, D. A., Clark, D. S., Dewald, E. L., Dittrich, T. R., Haan, S. W., Hinkel, D. E., Hoover, D., Hurricane, O. A., Kroll, J. J., Landen, O. L., Moore, A. S., Nikroo, A., Park, H. S., Remington, B. A., ... Widmann, K. (2014). Reduced instability growth with high-adiabat high-foot implosions at the National Ignition Facility. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 90(1), Article 011102. https://doi.org/10.1103/PhysRevE.90.011102

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title = "Reduced instability growth with high-adiabat high-foot implosions at the National Ignition Facility",

abstract = "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)10.1038/nature13008], when compared to previous {"}low-foot{"} experiments, demonstrating the value of stabilizing ablation-front growth and providing directions for future ignition designs.",

author = "Casey, \{D. T.\} and Smalyuk, \{V. A.\} and Raman, \{K. S.\} and Peterson, \{J. L.\} and \{Berzak Hopkins\}, L. and Callahan, \{D. A.\} and Clark, \{D. S.\} and Dewald, \{E. L.\} and Dittrich, \{T. R.\} and Haan, \{S. W.\} and Hinkel, \{D. E.\} and D. Hoover and Hurricane, \{O. A.\} and Kroll, \{J. J.\} and Landen, \{O. L.\} and Moore, \{A. S.\} and A. Nikroo and Park, \{H. S.\} and Remington, \{B. A.\} and Robey, \{H. F.\} and Rygg, \{J. R.\} and Salmonson, \{J. D.\} and R. Tommasini and K. Widmann",

year = "2014",

month = jul,

day = "25",

doi = "10.1103/PhysRevE.90.011102",

language = "English (US)",

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Casey, DT, Smalyuk, VA, Raman, KS, Peterson, JL, Berzak Hopkins, L, Callahan, DA, Clark, DS, Dewald, EL, Dittrich, TR, Haan, SW, Hinkel, DE, Hoover, D, Hurricane, OA, Kroll, JJ, Landen, OL, Moore, AS, Nikroo, A, Park, HS, Remington, BA, Robey, HF, Rygg, JR, Salmonson, JD, Tommasini, R & Widmann, K 2014, 'Reduced instability growth with high-adiabat high-foot implosions at the National Ignition Facility', Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, vol. 90, no. 1, 011102. https://doi.org/10.1103/PhysRevE.90.011102

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AU - Casey, D. T.

AU - Smalyuk, V. A.

AU - Raman, K. S.

AU - Peterson, J. L.

AU - Berzak Hopkins, L.

AU - Callahan, D. A.

AU - Clark, D. S.

AU - Dewald, E. L.

AU - Dittrich, T. R.

AU - Haan, S. W.

AU - Hinkel, D. E.

AU - Hoover, D.

AU - Hurricane, O. A.

AU - Kroll, J. J.

AU - Landen, O. L.

AU - Moore, A. S.

AU - Nikroo, A.

AU - Park, H. S.

AU - Remington, B. A.

AU - Robey, H. F.

AU - Rygg, J. R.

AU - Salmonson, J. D.

AU - Tommasini, R.

AU - Widmann, K.

PY - 2014/7/25

Y1 - 2014/7/25

N2 - 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)10.1038/nature13008], when compared to previous "low-foot" experiments, demonstrating the value of stabilizing ablation-front growth and providing directions for future ignition designs.

AB - 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)10.1038/nature13008], 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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SN - 1539-3755

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JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

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IS - 1

M1 - 011102

ER -

Reduced instability growth with high-adiabat high-foot implosions at the National Ignition Facility

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All Science Journal Classification (ASJC) codes

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