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(OV3/3) Recent Advances in Direct-Drive ICF Target Physics at the Laboratory for Laser Energetics

   
R. L. McCrory , J. M. Soures , A. Babushkin , R. E. Bahr , R. Betti , T. R. Boehly , R. Boni , D. K. Bradley , T. J. B. Collins , R. S. Craxton , J. D. Delettrez , W. R. Donaldson , R. Epstein , V. Yu. Glebov , V. N. Goncharov , R. Q. Gram , D. R. Harding , D. G. Hicks 2, B. Hughes , P. A. Jaanimagi , T. J. Kessler , J. Knauer , C. K. Li 2, S. J. Loucks , F. J. Marshall , P. W. McKenty , D. D. Meyerhofer , A. V. Okishev , S. Padalino 1 R. D. Petrasso 2, P. B. Radha , S. P. Regan , F. H. Seguin 2, W. Seka , R. W. Short , A. Simon , M. D. Skeldon , S. Skupsky , C. Stoeckl , R. P. J. Town , M. D. Wittman , B. Yaakobi , and J. D. Zuegel 
 
University of Rochester, Laboratory for Laser Energetics 250 East River Road, Rochester, NY 14623-1299
1 State University of New York at Geneseo
2 Massachusetts Institute of Technology
United States of America

Abstract
The principal role of the Laboratory for Laser Energetics (LLE) is the development and validation of the direct-drive approach to inertial fusion. The LLE experimental and theoretical programs in support of this mission were organized to provide a moderate-gain option for the U.S. National Ignition Facility (NIF ). Experimental implementation of the LLE program is carried out on the LLE's 30-kJ, 60-beam, UV OMEGA laser. This paper summarizes the status of the direct-drive ICF physics program at LLE with emphasis on the development of beam-smoothing techniques, long-scale-length plasma interaction experiments, direct-drive planar-foil hydrodynamic instability experiments, the effect of laser nonuniformity on target stability, integrated spherical target implosion experiments, design of direct-drive targets, development of target diagnostic techniques, and implementation of cryogenic-fuel-layering technology.

   

Read the full paper in PDF format.


IAEA 1999