Polar-direct-drive experiments with contoured-shell targets on OMEGA

Journal Article · Fri Jan 15 00:00:00 EST 2016 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4940939· OSTI ID:22493832

Marshall, F. J.; Radha, P. B.; Bonino, M. J.; Delettrez, J. A.; Epstein, R.; Glebov, V. Yu.; Harding, D. R.; Stoeckl, C. ^[1]; Frenje, J. A.; Gatu Johnson, M.; Séguin, F. H.; Sio, H.; Zylstra, A. ^[2]; Giraldez, E. ^[3]

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1. Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)
2. Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
3. General Atomics, San Diego, California 92121 (United States)

Polar-driven direct-drive experiments recently performed on the OMEGA Laser System have demonstrated the efficacy of using a target with a contoured shell with varying thickness to improve the symmetry and fusion performance of the implosion. The polar-driven contoured-shell implosions have substantially reduced low mode perturbations compared to polar-driven spherical-shell implosions as diagnosed by x-ray radiographs up to shell stagnation. Fusion yields were increased by more than a factor of ∼2 without increasing the energy of the laser by the use of contoured shells.

• OSTI ID: 22493832
• Journal Information: Physics of Plasmas, Vol. 23, Issue 1; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CAPSULES
DIRECT DRIVE LASER IMPLOSION
DISTURBANCES
FUSION YIELD
LASER TARGETS
OMEGA FACILITY
SPHERICAL CONFIGURATION
STAGNATION
SYMMETRY
X-RAY RADIOGRAPHY