Laser program development at CEL-V: overview of recent experimental results

A significant effort has been made recently at CEL-V to improve laser facilities. OCTAL, the eight beam, 2 kJ laser, has been equipped with phosphate glass and KDP frequency tripling systems. PHEBUS, a two beam 20 kJ neodymium glass laser based on NOVA technology was denned and built and will be tested in early 1986 in close collaboration with Lawrence Livermore National Laboratory. In the field of diagnostics, the development of soft X-ray emission analysis has been emphasized. Most of the recent experimental results have been obtained at a short wave-length (0·35 μm). They deal with the effect of non-uniform illumination, 2D hydrodynamics with either plane or spherical targets, and the study of thermal transport inhibition.

[1]  P. Combis,et al.  X-ray-line self-absorption and electron density determination in a laser-created plasma , 1984 .

[2]  Kunioki Mima,et al.  Random Phasing of High-Power Lasers for Uniform Target Acceleration and Plasma-Instability Suppression , 1984 .

[3]  B. Meyer,et al.  Experimental scaling laws for ablation parameters in plane target–laser interaction with 1.06 μm and 0.35 μm laser wavelengths , 1984 .

[4]  R. Whitlock,et al.  Laser-Produced-Plasma Energy Transport through Plastic Films, , 1977 .

[5]  B. Meyer,et al.  Determination of energy transport parameters in flat, layered targets irradiated by picosecond Nd-laser pulses , 1981 .

[6]  S. P. Obenschain,et al.  Use of induced spatial incoherence for uniform illumination on laser fusion targets. Memorandum report , 1983 .

[7]  B. Meyer,et al.  On hydrodynamic energy transfer between two foils of a laser irradiated double-foil target at 0.35 μm wavelength , 1985 .

[8]  E. Luc-Koenig,et al.  Study of X-ray Spectrum of Laser-produced Gold Plasmas , 1985 .

[9]  T. Yabe,et al.  Laser implosion of thick low‐Z foam coated glass microballoon , 1983 .

[10]  M. Decroisette,et al.  Laser implosion of microballoons: study of the transition from exploding-pusher to ablative regime , 1984 .

[11]  J. Nuckolls,et al.  Laser Compression of Matter to Super-High Densities: Thermonuclear (CTR) Applications , 1972, Nature.

[12]  M. Busquet.  Mixed model: Non-local-thermodynamic equilibrium, non-coronal-equilibrium simple ionization model for laser-created plasmas , 1982 .

[13]  Heinrich Hora,et al.  Laser Interaction and Related Plasma Phenomena , 2005 .

[14]  M. Decroisette,et al.  Improvement of beam nonuniformity smoothing due to x radiation in laser-driven layered targets , 1984 .

[15]  Martin Richardson,et al.  Characteristics of target interaction with high power UV laser radiation , 1981 .

[16]  B. Meyer,et al.  Study of preheat effects in ND‐laser irradiated finite Al disk targets , 1982 .