Demonstration of Radiation Symmetry Control for Inertial Confinement Fusion in Double $Z$-Pinch Hohlraums

Demonstration of Radiation Symmetry Control for Inertial Confinement Fusion in Double $Z$ -Pinch Hohlraums

R. A. Vesey, M. E. Cuneo, G. R. Bennett, J. L. Porter, Jr., R. G. Adams, R. A. Aragon, P. K. Rambo, L. E. Ruggles, W. W. Simpson, and I. C. Smith

Phys. Rev. Lett. 90, 035005 – Published 23 January 2003

Abstract

Simulations of a double $Z$ -pinch hohlraum, relevant to the high-yield inertial-confinement-fusion concept, predict that through geometry design the time-integrated $P_{2}$ Legendre mode drive asymmetry can be systematically controlled from positive to negative coefficient values. Studying capsule elongation, recent experiments on $Z$ confirm such control by varying the secondary hohlraum length. Since the experimental trend and optimum length are correctly modeled, confidence is gained in the simulation tools; the same tools predict capsule drive uniformity sufficient for high-yield fusion ignition.

Received 10 June 2002

DOI:https://doi.org/10.1103/PhysRevLett.90.035005

Authors & Affiliations

R. A. Vesey^1,*, M. E. Cuneo¹, G. R. Bennett², J. L. Porter, Jr.¹, R. G. Adams¹, R. A. Aragon¹, P. K. Rambo¹, L. E. Ruggles¹, W. W. Simpson¹, and I. C. Smith¹

¹Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185-1186
²Ktech, Corp., 2201 Buena Vista SE, Suite 400, Albuquerque, New Mexico 87106-4265

^*Electronic address: ravesey@sandia.gov

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Vol. 90, Iss. 3 — 24 January 2003

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