The near vacuum hohlraum campaign at the NIF: A new approach

Le Pape, S.; Berzak Hopkins, L. F.; Divol, L.; Meezan, N.; Turnbull, D.; Mackinnon, A. J.; Ho, D.; Ross, J. S.; Khan, S.; Pak, A.; Dewald, E.; Benedetti, L. R.; Nagel, S.; Biener, J.; Callahan, D. A.; Yeamans, C.; Michel, P.; Schneider, M.; Kozioziemski, B.; Ma, T.; Macphee, A. G.; Haan, S.; Izumi, N.; Hatarik, R.; Sterne, P.; Celliers, P.; Ralph, J.; Rygg, R.; Strozzi, D.; Kilkenny, J.; Rosenberg, M.; Rinderknecht, H.; Sio, H.; Gatu-Johnson, M.; Frenje, J.; Petrasso, R.; Zylstra, A.; Town, R.; Hurricane, O.; Nikroo, A.; Edwards, M. J.

doi:10.1063/1.4950843

Title: The near vacuum hohlraum campaign at the NIF: A new approach

Journal Article · Wed May 25 00:00:00 EDT 2016 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4950843· OSTI ID:1260965

Le Pape, S. ^[1];

^[1]; Divol, L. ^[1]; Meezan, N. ^[1]; Turnbull, D. ^[1]; Mackinnon, A. J. ^[2]; Ho, D. ^[1]; Ross, J. S. ^[1]; Khan, S. ^[1]; Pak, A. ^[1]; Dewald, E. ^[1]; Benedetti, L. R. ^[1];

^[1]; Biener, J. ^[1];

^[1];

^[1]; Michel, P. ^[1];

^[1]; Kozioziemski, B. ^[1]; Ma, T. ^[1] more »

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
SLAC National Accelerator Lab., Menlo Park, CA (United States)
General Atomics, San Diego, CA (United States)
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Here, the near vacuum campaign on the National Ignition Facility has concentrated its efforts over the last year on finding the optimum target geometry to drive a symmetric implosion at high convergence ratio (30). As the hohlraum walls are not tamped with gas, the hohlraum is filling with gold plasma and the challenge resides in depositing enough energy in the hohlraum before it fills up. Hohlraum filling is believed to cause symmetry swings late in the pulse that are detrimental to the symmetry of the hot spot at high convergence. This paper describes a series of experiments carried out to examine the effect of increasing the distance between the hohlraum wall and the capsule (case to capsule ratio) on the symmetry of the hot spot. These experiments have shown that smaller Case to Capsule Ratio (CCR of 2.87 and 3.1) resulted in oblate implosions that could not be tuned round. Larger CCR (3.4) led to a prolate implosion at convergence 30 implying that inner beam propagation at large CCR is not impeded by the expanding hohlraum plasma. A Case to Capsule ratio of 3.4 is a promising geometry to design a round implosion but in a smaller hohlraum where the hohlraum losses are lower, enabling a wider cone fraction range to adjust symmetry.

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Research Organization:: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

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

Grant/Contract Number:: NA0002726; AC52-07NA27344; NA0001857; NA0002949

OSTI ID:: 1260965

Alternate ID(s):: OSTI ID: 1254368; OSTI ID: 1260966; OSTI ID: 1260967

Journal Information:: Physics of Plasmas, Vol. 23, Issue 5; ISSN 1070-664X

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

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 40 works

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References (23)

The physics basis for ignition using indirect-drive targets on the National Ignition Facility Lindl, John D.; Amendt, Peter; Berger, Richard L. Physics of Plasmas, Vol. 11, Issue 2 https://doi.org/10.1063/1.1578638	journal	February 2004
The National Ignition Facility: Ushering in a new age for high energy density science Moses, E. I.; Boyd, R. N.; Remington, B. A. Physics of Plasmas, Vol. 16, Issue 4 https://doi.org/10.1063/1.3116505	journal	April 2009
Design of a High-Foot High-Adiabat ICF Capsule for the National Ignition Facility Dittrich, T. R.; Hurricane, O. A.; Callahan, D. A. Physical Review Letters, Vol. 112, Issue 5 https://doi.org/10.1103/PhysRevLett.112.055002	journal	February 2014
Fuel gain exceeding unity in an inertially confined fusion implosion Hurricane, O. A.; Callahan, D. A.; Casey, D. T. Nature, Vol. 506, Issue 7488 https://doi.org/10.1038/nature13008	journal	February 2014
Progress towards ignition on the National Ignition Facility Edwards, M. J.; Patel, P. K.; Lindl, J. D. Physics of Plasmas, Vol. 20, Issue 7 https://doi.org/10.1063/1.4816115	journal	July 2013
Diamond spheres for inertial confinement fusion Biener, J.; Ho, D. D.; Wild, C. Nuclear Fusion, Vol. 49, Issue 11 https://doi.org/10.1088/0029-5515/49/11/112001	journal	September 2009
High-density carbon capsule experiments on the national ignition facility Ross, J. S.; Ho, D.; Milovich, J. Physical Review E, Vol. 91, Issue 2 https://doi.org/10.1103/PhysRevE.91.021101	journal	February 2015
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
Review of the National Ignition Campaign 2009-2012 Lindl, John; Landen, Otto; Edwards, John Physics of Plasmas, Vol. 21, Issue 2 https://doi.org/10.1063/1.4865400	journal	February 2014
X-ray conversion efficiency in vacuum hohlraum experiments at the National Ignition Facility Olson, R. E.; Suter, L. J.; Kline, J. L. Physics of Plasmas, Vol. 19, Issue 5 https://doi.org/10.1063/1.4704795	journal	May 2012
A high-resolution integrated model of the National Ignition Campaign cryogenic layered experiments Jones, O. S.; Cerjan, C. J.; Marinak, M. M. Physics of Plasmas, Vol. 19, Issue 5 https://doi.org/10.1063/1.4718595	journal	May 2012
First High-Convergence Cryogenic Implosion in a Near-Vacuum Hohlraum Berzak Hopkins, L. F.; Meezan, N. B.; Le Pape, S. Physical Review Letters, Vol. 114, Issue 17 https://doi.org/10.1103/PhysRevLett.114.175001	journal	April 2015
Tuning the Implosion Symmetry of ICF Targets via Controlled Crossed-Beam Energy Transfer Michel, P.; Divol, L.; Williams, E. A. Physical Review Letters, Vol. 102, Issue 2 https://doi.org/10.1103/PhysRevLett.102.025004	journal	January 2009
Symmetry tuning via controlled crossed-beam energy transfer on the National Ignition Facility Michel, P.; Glenzer, S. H.; Divol, L. Physics of Plasmas, Vol. 17, Issue 5 https://doi.org/10.1063/1.3325733	journal	May 2010
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
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
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
Quantitative characterization of inertial confinement fusion capsules using phase contrast enhanced x-ray imaging Kozioziemski, B. J.; Koch, J. A.; Barty, A. Journal of Applied Physics, Vol. 97, Issue 6 https://doi.org/10.1063/1.1862764	journal	March 2005
Measuring symmetry of implosions in cryogenic Hohlraums at the NIF using gated x-ray detectors (invited) Kyrala, G. A.; Dixit, S.; Glenzer, S. Review of Scientific Instruments, Vol. 81, Issue 10 https://doi.org/10.1063/1.3481028	journal	October 2010
Three-dimensional HYDRA simulations of National Ignition Facility targets Marinak, M. M.; Kerbel, G. D.; Gentile, N. A. Physics of Plasmas, Vol. 8, Issue 5 https://doi.org/10.1063/1.1356740	journal	May 2001
Near-vacuum hohlraums for driving fusion implosions with high density carbon ablatorsa) Berzak Hopkins, L. F.; Le Pape, S.; Divol, L. Physics of Plasmas, Vol. 22, Issue 5 https://doi.org/10.1063/1.4921151	journal	May 2015
Hohlraum energetics scaling to 520 TW on the National Ignition Facility Kline, J. L.; Callahan, D. A.; Glenzer, S. H. Physics of Plasmas, Vol. 20, Issue 5 https://doi.org/10.1063/1.4803907	journal	May 2013

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Performance of beryllium targets with full-scale capsules in low-fill 6.72-mm hohlraums on the National Ignition Facility Simakov, A. N.; Wilson, D. C.; Yi, S. A. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4983141	journal	May 2017
The effects of convergence ratio on the implosion behavior of DT layered inertial confinement fusion capsules Haines, Brian M.; Yi, S. A.; Olson, R. E. Physics of Plasmas, Vol. 24, Issue 7 https://doi.org/10.1063/1.4993065	journal	July 2017
Hollow wall to stabilize and enhance ignition hohlraums Vandenboomgaerde, M.; Grisollet, A.; Bonnefille, M. Physics of Plasmas, Vol. 25, Issue 1 https://doi.org/10.1063/1.5008669	journal	January 2018
Comparison of plastic, high density carbon, and beryllium as indirect drive NIF ablators Kritcher, A. L.; Clark, D.; Haan, S. Physics of Plasmas, Vol. 25, Issue 5 https://doi.org/10.1063/1.5018000	journal	May 2018
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Mitigation of X-ray shadow seeding of hydrodynamic instabilities on inertial confinement fusion capsules using a reduced diameter fuel fill-tube MacPhee, A. G.; Smalyuk, V. A.; Landen, O. L. Physics of Plasmas, Vol. 25, Issue 5 https://doi.org/10.1063/1.5025183	journal	May 2018
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Hydrodynamic instabilities seeded by the X-ray shadow of ICF capsule fill-tubes MacPhee, A. G.; Smalyuk, V. A.; Landen, O. L. Physics of Plasmas, Vol. 25, Issue 8 https://doi.org/10.1063/1.5037816	journal	August 2018
First demonstration of improved capsule implosions by reducing radiation preheat in uranium vs gold hohlraums Dewald, E. L.; Tommasini, R.; Meezan, N. B. Physics of Plasmas, Vol. 25, Issue 9 https://doi.org/10.1063/1.5039385	journal	September 2018
Implosion shape control of high-velocity, large case-to-capsule ratio beryllium ablators at the National Ignition Facility Loomis, E. N.; Yi, S. A.; Kyrala, G. A. Physics of Plasmas, Vol. 25, Issue 7 https://doi.org/10.1063/1.5040995	journal	July 2018
Kinetic effects on neutron generation in moderately collisional interpenetrating plasma flows Higginson, D. P.; Ross, J. S.; Ryutov, D. D. Physics of Plasmas, Vol. 26, Issue 1 https://doi.org/10.1063/1.5048386	journal	January 2019
Hybrid particle-in-cell simulations of laser-driven plasma interpenetration, heating, and entrainment Higginson, D. P.; Amendt, P.; Meezan, N. Physics of Plasmas, Vol. 26, Issue 11 https://doi.org/10.1063/1.5110512	journal	November 2019
Maintaining low-mode symmetry control with extended pulse shapes for lower-adiabat Bigfoot implosions on the National Ignition Facility Hohenberger, M.; Casey, D. T.; Thomas, C. A. Physics of Plasmas, Vol. 26, Issue 11 https://doi.org/10.1063/1.5121435	journal	November 2019
Indirect drive ignition at the National Ignition Facility Meezan, N. B.; Edwards, M. J.; Hurricane, O. A. Plasma Physics and Controlled Fusion, Vol. 59, Issue 1 https://doi.org/10.1088/0741-3335/59/1/014021	journal	October 2016
Toward a burning plasma state using diamond ablator inertially confined fusion (ICF) implosions on the National Ignition Facility (NIF) Hopkins, L. Berzak; LePape, S.; Divol, L. Plasma Physics and Controlled Fusion, Vol. 61, Issue 1 https://doi.org/10.1088/1361-6587/aad97e	journal	November 2018
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
Preliminary study on a tetrahedral hohlraum with four half-cylindrical cavities for indirectly driven inertial confinement fusion Jing, Longfei; Jiang, Shaoen; Kuang, Longyu Nuclear Fusion, Vol. 57, Issue 4 https://doi.org/10.1088/1741-4326/aa5b43	journal	March 2017
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: The near vacuum hohlraum campaign at the NIF: A new approach

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