Numéro
J. Phys. IV France
Volume 133, June 2006
Page(s) 595 - 600
DOI http://dx.doi.org/10.1051/jp4:2006133119
Publié en ligne 16 juin 2006
Inertial Fusion Sciences and Applications 2005
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 595-600

DOI: 10.1051/jp4:2006133119

The LIL facility quadruplet commissioning

J.M. Di-Nicola, N. Fleurot, T. Lonjaret, X. Julien, E. Bordenave, B. Le Garrec, M. Mangeant, G. Behar, T. Chies, C. Féral, H. Graillot, M. Luttmann, F. Jequier, E. Journot, O. Lutz and G.Thiell

Commissariat à l'Énergie Atomique, CEA-CESTA/DLP, BP. 2, 33114 Le Barp, France


Abstract
Following LIL single beamline commissioning in 2003, where performance in terms of power and energy required for LMJ was demonstrated, we spent year 2004 to qualify the quadruplet (or quad) performance at 1$\omega $/3$\omega $. Over that year, the first quad high power and high energy laser experiments took place on LIL facility. A careful set of test campaigns were conducted to safely ramp up laser performance. The main goal was to measure quad-specific features such as beam synchronization and focal spot (size, smoothing contrast ratio or irradiation nonuniformity $\sigma _{\rm rms})$ versus the LMJ requirements. LIL Quad beam waist was recorded for various pulse durations, smoothing techniques and for a wide range of laser intensities up to LMJ-nominal ones. Now, LIL quad has been commissioned to the center of the target chamber and the first plasma experiments are made.



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