Simultaneous visualization of wall motion, beam propagation, and implosion symmetry on the National Ignition Facility (invited)

Izumi, N.; Meezan, N. B.; Johnson, S.; Woodworth, B. N.; Woods, T.; Jones, O. S.; Landen, O. L.; Kroll, J. J.; Vonhof, S.; Nikroo, A.; Jaquez, J.; Kangas, K.; Bailey, C.; Hardy, M.; Ehrlich, R.; Ralph, J.; Town, R. Pj.; Bradley, D. K.; Hinkel, D. E.; Moore, A. S.; Divol, L.; Young, C.; Moody, J. D.

doi:10.1063/1.5039364

Title: Simultaneous visualization of wall motion, beam propagation, and implosion symmetry on the National Ignition Facility (invited)

Journal Article · 30 September 2018 · Review of Scientific Instruments

DOI: https://doi.org/10.1063/1.5039364 · OSTI ID:1545514

^[1]; Meezan, N. B. ^[1];

^[1];

^[1]; Jones, O. S. ^[1];

^[1]; Kroll, J. J. ^[1]; Vonhof, S. ^[2];

^[1]; Jaquez, J. ^[3]; Kangas, K. ^[2]; Bailey, C. ^[1]; Hardy, M. ^[1]; Ehrlich, R. ^[1]; Ralph, J. ^[1]; Town, R. Pj. ^[1]; Bradley, D. K. ^[1]; Hinkel, D. E. ^[1]; Moore, A. S. ^[1] more »

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
General Atomics, San Diego, CA (United States)
General Atomics, La Jolla, CA (United States)

Achieving a symmetric implosion in National Ignition Facility indirect drive targets requires understanding and control of dynamic changes to the laser power transport in the hohlraum. We developed a new experimental platform to simultaneously visualize wall-plasma motion and dynamic laser power transport in the hohlraum and are using it to investigate correlations of these measurements with the imploded capsule symmetry. In a series of experiments where we made one single parameter variation, we show the value of this new platform in developing an understanding of laser transport and implosion symmetry. This platform also provides a new way to evaluate dynamic performance of advanced hohlraum designs.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE; USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1545514

Report Number(s):: LLNL-JRNL--823298

Journal Information:: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 10 Vol. 89; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

References (12)

Use of thin wall imaging in the diagnosis of laser heated hohlraums Suter, L. J.; Thiessen, A. R.; Ze, F. Review of Scientific Instruments, Vol. 68, Issue 1 https://doi.org/10.1063/1.1147703	journal	January 1997
Hard x-ray imaging for measuring laser absorption spatial profiles on the National Ignition Facility Dewald, E. L.; Jones, O. S.; Landen, O. L. Review of Scientific Instruments, Vol. 77, Issue 10 https://doi.org/10.1063/1.2216991	journal	October 2006
Gated x-ray detector for the National Ignition Facility Oertel, John A.; Aragonez, Robert; Archuleta, Tom Review of Scientific Instruments, Vol. 77, Issue 10 https://doi.org/10.1063/1.2227439	journal	October 2006
Symmetry tuning for ignition capsules via the symcap technique Kyrala, G. A.; Kline, J. L.; Dixit, S. Physics of Plasmas, Vol. 18, Issue 5 https://doi.org/10.1063/1.3574504	journal	May 2011
Cryogenic thermonuclear fuel implosions on the National Ignition Facility Glenzer, S. H.; Callahan, D. A.; MacKinnon, A. J. Physics of Plasmas, Vol. 19, Issue 5 https://doi.org/10.1063/1.4719686	journal	May 2012
High-density carbon ablator experiments on the National Ignition Facility MacKinnon, A. J.; Meezan, N. B.; Ross, J. S. Physics of Plasmas, Vol. 21, Issue 5 https://doi.org/10.1063/1.4876611	journal	May 2014
Cryogenic tritium-hydrogen-deuterium and deuterium-tritium layer implosions with high density carbon ablators in near-vacuum hohlraums Meezan, N. B.; Berzak Hopkins, L. F.; Le Pape, S. Physics of Plasmas, Vol. 22, Issue 6 https://doi.org/10.1063/1.4921947	journal	June 2015
Symmetry control of an indirectly driven high-density-carbon implosion at high convergence and high velocity Divol, L.; Pak, A.; Berzak Hopkins, L. F. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4982215	journal	May 2017
The relationship between gas fill density and hohlraum drive performance at the National Ignition Facility Hall, G. N.; Jones, O. S.; Strozzi, D. J. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4983142	journal	May 2017
Exploring the limits of case-to-capsule ratio, pulse length, and picket energy for symmetric hohlraum drive on the National Ignition Facility Laser Callahan, D. A.; Hurricane, O. A.; Ralph, J. E. Physics of Plasmas, Vol. 25, Issue 5 https://doi.org/10.1063/1.5020057	journal	May 2018
2D X-Ray Radiography of Imploding Capsules at the National Ignition Facility Rygg, J. R.; Jones, O. S.; Field, J. E. Physical Review Letters, Vol. 112, Issue 19 https://doi.org/10.1103/PhysRevLett.112.195001	journal	May 2014
Precision Shock Tuning on the National Ignition Facility Robey, H. F.; Celliers, P. M.; Kline, J. L. Physical Review Letters, Vol. 108, Issue 21 https://doi.org/10.1103/physrevlett.108.215004	journal	May 2012

Cited By (5)

Approaching a burning plasma on the NIF Hurricane, O. A.; Springer, P. T.; Patel, P. K. Physics of Plasmas, Vol. 26, Issue 5 https://doi.org/10.1063/1.5087256	journal	May 2019
Ultra-high (>30%) coupling efficiency designs for demonstrating central hot-spot ignition on the National Ignition Facility using a Frustraum Amendt, Peter; Ho, Darwin; Ping, Yuan Physics of Plasmas, Vol. 26, Issue 8 https://doi.org/10.1063/1.5099934	journal	August 2019
Understanding ICF hohlraums using NIF gated laser-entrance-hole images Chen, Hui; Woods, D. T.; Jones, O. S. Physics of Plasmas, Vol. 27, Issue 2 https://doi.org/10.1063/1.5128501	journal	February 2020
Beyond alpha-heating: driving inertially confined fusion implosions toward a burning-plasma state on the National Ignition Facility Hurricane, O. A.; Callahan, D. A.; Springer, P. T. Plasma Physics and Controlled Fusion, Vol. 61, Issue 1 https://doi.org/10.1088/1361-6587/aaed71	journal	November 2018
Progress of indirect drive inertial confinement fusion in the United States Kline, J. L.; Batha, S. H.; Benedetti, L. R. Nuclear Fusion, Vol. 59, Issue 11 https://doi.org/10.1088/1741-4326/ab1ecf	journal	July 2019

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Title: Simultaneous visualization of wall motion, beam propagation, and implosion symmetry on the National Ignition Facility (invited)

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