EPJ Web of Conferences
Volume 59, 2013IFSA 2011 – Seventh International Conference on Inertial Fusion Sciences and Applications
|Number of page(s)||4|
|Section||PHYSICS OF INERTIAL FUSION – II. Conventional Target Physics (Direct and Indirect)|
|Published online||15 November 2013|
Shock timing on the National Ignition Facility: First experiments
1 Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
2 Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14423, USA
3 General Atomics, PO Box 85608, San Diego, CA 92186, USA
4 Los Alamos National Laboratory, Los Alamos, NM 87545, USA
5 Sanda National Laboratories, Albuquerque, NM 87185, USA
a e-mail: firstname.lastname@example.org
Published online: 15 November 2013
An experimental campaign to tune the initial shock compression sequence of capsule implosions on the National Ignition Facility (NIF) was initiated in late 2010. The experiments use a NIF ignition-scale hohlraum and capsule that employs a re-entrant cone to provide optical access to the shocks as they propagate in the liquid deuterium-filled capsule interior. The strength and timing of the shock sequence is diagnosed with velocity interferometry that provides target performance data used to set the pulse shape for ignition capsule implosions that follow. From the start, these measurements yielded significant new information on target performance, leading to improvements in the target design. We describe the results and interpretation of the initial tuning experiments.
© Owned by the authors, published by EDP Sciences, 2013
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