Update on ignition studies at CEA
CEA/DAM/Ile de France, B.P. 12, 91680 Bruyères-le-Chatel Cedex, France
Corresponding author: a firstname.lastname@example.org
Revised: 11 April 2006
Published online: 28 July 2006
This article sums up the theoretical and experimental studies about ignition. Three experiments are salient this year on the Omega laser in collaboration with DOE laboratories (1) 3 cones of beams allow to mimic the LMJ configuration and to get symmetry measurements. (2) We measured perturbations due to hydro-instability in CHGe planar samples with face-on and side-on radiographs. (3) We improved our nuclear diagnostics, particularly the neutron image system tested on direct drive implosions. As far as LMJ target design is concerned, we defined a preliminary domain corresponding to the possible operation at 2ω. At 3ω we studied the low mode instability effects on the DT deformation (due to the laser or to the target) and on the yield. The stability is clearly improved with graded doped CH for our nominal capsule L1215.
PACS: 52.57.-z – Laser inertial confinement / 52.57.Bc – Target design and fabrication / 52.57.Fg – Implosion symmetry and hydrodynamic instability
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2007