High-density carbon ablator ignition path with low-density gas-filled rugby hohlraum
Abstract
A recent low gas-fill density (0.6 mg/cc {sup 4}He) cylindrical hohlraum experiment on the National Ignition Facility has shown high laser-coupling efficiency (>96%), reduced phenomenological laser drive corrections, and improved high-density carbon capsule implosion symmetry [Jones et al., Bull. Am. Phys. Soc. 59(15), 66 (2014)]. In this Letter, an ignition design using a large rugby-shaped hohlraum [Amendt et al., Phys. Plasmas 21, 112703 (2014)] for high energetics efficiency and symmetry control with the same low gas-fill density (0.6 mg/cc {sup 4}He) is developed as a potentially robust platform for demonstrating thermonuclear burn. The companion high-density carbon capsule for this hohlraum design is driven by an adiabat-shaped [Betti et al., Phys. Plasmas 9, 2277 (2002)] 4-shock drive profile for robust high gain (>10) 1-D ignition performance and large margin to 2-D perturbation growth.
- Authors:
-
- Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)
- Publication Date:
- OSTI Identifier:
- 22408283
- Resource Type:
- Journal Article
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 22; Journal Issue: 4; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ABLATION; CAPSULES; CARBON; CYLINDRICAL CONFIGURATION; DENSITY; DISTURBANCES; HELIUM 4; IMPLOSIONS; LASER CAVITIES; THERMONUCLEAR IGNITION; US NATIONAL IGNITION FACILITY
Citation Formats
Amendt, Peter, Ho, Darwin D., and Jones, Ogden S. High-density carbon ablator ignition path with low-density gas-filled rugby hohlraum. United States: N. p., 2015.
Web. doi:10.1063/1.4918951.
Amendt, Peter, Ho, Darwin D., & Jones, Ogden S. High-density carbon ablator ignition path with low-density gas-filled rugby hohlraum. United States. https://doi.org/10.1063/1.4918951
Amendt, Peter, Ho, Darwin D., and Jones, Ogden S. 2015.
"High-density carbon ablator ignition path with low-density gas-filled rugby hohlraum". United States. https://doi.org/10.1063/1.4918951.
@article{osti_22408283,
title = {High-density carbon ablator ignition path with low-density gas-filled rugby hohlraum},
author = {Amendt, Peter and Ho, Darwin D. and Jones, Ogden S.},
abstractNote = {A recent low gas-fill density (0.6 mg/cc {sup 4}He) cylindrical hohlraum experiment on the National Ignition Facility has shown high laser-coupling efficiency (>96%), reduced phenomenological laser drive corrections, and improved high-density carbon capsule implosion symmetry [Jones et al., Bull. Am. Phys. Soc. 59(15), 66 (2014)]. In this Letter, an ignition design using a large rugby-shaped hohlraum [Amendt et al., Phys. Plasmas 21, 112703 (2014)] for high energetics efficiency and symmetry control with the same low gas-fill density (0.6 mg/cc {sup 4}He) is developed as a potentially robust platform for demonstrating thermonuclear burn. The companion high-density carbon capsule for this hohlraum design is driven by an adiabat-shaped [Betti et al., Phys. Plasmas 9, 2277 (2002)] 4-shock drive profile for robust high gain (>10) 1-D ignition performance and large margin to 2-D perturbation growth.},
doi = {10.1063/1.4918951},
url = {https://www.osti.gov/biblio/22408283},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 4,
volume = 22,
place = {United States},
year = {Wed Apr 15 00:00:00 EDT 2015},
month = {Wed Apr 15 00:00:00 EDT 2015}
}
Works referencing / citing this record:
Performance of beryllium targets with full-scale capsules in low-fill 6.72-mm hohlraums on the National Ignition Facility
journal, May 2017
- Simakov, A. N.; Wilson, D. C.; Yi, S. A.
- Physics of Plasmas, Vol. 24, Issue 5
The relationship between gas fill density and hohlraum drive performance at the National Ignition Facility
journal, May 2017
- Hall, G. N.; Jones, O. S.; Strozzi, D. J.
- Physics of Plasmas, Vol. 24, Issue 5
Ultra-high (>30%) coupling efficiency designs for demonstrating central hot-spot ignition on the National Ignition Facility using a Frustraum
journal, August 2019
- Amendt, Peter; Ho, Darwin; Ping, Yuan
- Physics of Plasmas, Vol. 26, Issue 8
Hybrid particle-in-cell simulations of laser-driven plasma interpenetration, heating, and entrainment
journal, November 2019
- Higginson, D. P.; Amendt, P.; Meezan, N.
- Physics of Plasmas, Vol. 26, Issue 11
Preliminary study on a tetrahedral hohlraum with four half-cylindrical cavities for indirectly driven inertial confinement fusion
journal, March 2017
- Jing, Longfei; Jiang, Shaoen; Kuang, Longyu
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