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Title: Capsule physics comparison of National Ignition Facility implosion designs using plastic, high density carbon, and beryllium ablators

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.5016874· OSTI ID:1756728

Indirect drive implosion experiments on the National Ignition Facility (NIF) [E. I. Moses et al., Phys. Plasmas 16, 041006 (2009)] have now tested three different ablator materials: glow discharge polymer plastic, high density carbon, and beryllium. How do these different ablators compare in current and proposed implosion experiments on NIF? What are the relative advantages and disadvantages of each? This paper compares these different ablator options in capsule-only simulations of current NIF experiments and potential future designs. The simulations compare the impact of the capsule fill tube, support tent, and interface surface roughness for each case, as well as all perturbations in combination. According to the simulations, each ablator is impacted by the various perturbation sources differently, and each material poses unique challenges in the pursuit of ignition on NIF.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1756728
Alternate ID(s):
OSTI ID: 1424529
Report Number(s):
LLNL-JRNL-740758; 894140; TRN: US2205669
Journal Information:
Physics of Plasmas, Vol. 25, Issue 3; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 58 works
Citation information provided by
Web of Science

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Cited By (21)

Maintaining low-mode symmetry control with extended pulse shapes for lower-adiabat Bigfoot implosions on the National Ignition Facility journal November 2019
Mixing in ICF implosions on the National Ignition Facility caused by the fill-tube journal March 2020
Analysis of NIF scaling using physics informed machine learning journal January 2020
Hydrodynamic instabilities seeded by the X-ray shadow of ICF capsule fill-tubes journal August 2018
X-ray fluorescence imaging of jet flow in laser driven high-energy-density experiments journal July 2019
Visualizing deceleration-phase instabilities in inertial confinement fusion implosions using an “enhanced self-emission” technique at the National Ignition Facility journal May 2018
Octahedral spherical Hohlraum for Rev. 6 NIF beryllium capsule journal October 2018
Three-dimensional modeling and hydrodynamic scaling of National Ignition Facility implosions journal May 2019
Implosion performance of subscale beryllium capsules on the NIF journal May 2019
Compression and burning of a direct-driven thermonuclear target under the conditions of inhomogeneous heating by a multi-beam megajoule laser journal January 2019
Robustness to hydrodynamic instabilities in indirectly driven layered capsule implosions journal January 2019
Turbulent transport and mixing in the multimode narrowband Richtmyer-Meshkov instability journal September 2019
Burn regimes in the hydrodynamic scaling of perturbed inertial confinement fusion hotspots journal June 2019
Burn regimes in the hydrodynamic scaling of perturbed inertial confinement fusion hotspots text January 2019
Comparison of plastic, high density carbon, and beryllium as indirect drive NIF ablators journal May 2018
Effects of thermal conductivity of liquid layer in NIF wetted foam experiments journal September 2019
Making inertial confinement fusion models more predictive journal August 2019
Beryllium capsule implosions at a case-to-capsule ratio of 3.7 on the National Ignition Facility journal October 2018
Sound velocity, shear modulus, and shock melting of beryllium along the Hugoniot journal August 2019
Computational study of instability and fill tube mitigation strategies for double shell implosions journal October 2019
Modeling and projecting implosion performance for the National Ignition Facility journal December 2018