Zobrazeno 1 - 10
of 24
pro vyhledávání: '"J. L. Bocher"'
Publikováno v:
Physics of Plasmas. 9:4252-4260
In the context of the direct-drive Laser-Megajoule (LMJ) fusion-research program, the characteristic long-wavelength nonuniformities produced by irradiating a pellet with multiple overlapping laser beams are studied with or without imperfections comi
Autor:
J. Y. Boutin, R. E. Turner, B. Savale, J. L. Bourgade, B. Villette, D. Gontier, R. Wrobel, J. P. Jadaud, J. L. Bocher, N. Dague, S. Chiche
Publikováno v:
Review of Scientific Instruments. 72:1173-1182
In high flux (1013–15 W/cm2) laser-plasma interaction, a large part of the incoming laser energy is radiated into soft x-rays. To determine both the shape of this spectrum and the conversion efficiency, we have designed and tested an absolutely cal
Autor:
Laurence Bonnet, B. Vilette, D. Babonneau, J. P. Jadaud, J.Y. Boutin, Sylvie Jacquemot, J. L. Bocher
Publikováno v:
ResearcherID
A time-resolved X-ray conversion efficiency campaign was conducted at CEA/Limeil–Valenton on the PHEBUS laser, with Au planar targets. The calibrated diagnostic DEMIXART has measured X-ray emissions driven by shaped laser pulses. The results have b
Autor:
M. Rabec Le Gloahec, P. Ney, D. Desenne, J. P. Le Breton, A. Dulieu, J. Bruneau, S. Gary, R. Benattar, J. C. Gauthier, J. L. Bocher, F. Lutrin, Jl. Larcade
Publikováno v:
Annales de Physique. 19:C1-87
Resume: Les emissions des plasmas laser dans les domaines X et XUV sont suffisamment intenses pour constituer des sources d'analyse d'autres plasmas. La configuration experimentale ou les faisceaux laser disponibles sont repartis en deux categories,
Autor:
M. Decroisette, A. Decoster, J. L. Bocher, R. Dautray, D. Juraszek, D. Babonneau, A. Coudeville, J. Lachkar, A. Jolas, Guy Schurtz, C. Rousseaux, J. Coutant, D. Schirmann, J-P. Jadaud, M. Andre, D. Véron, J-P. Watteau, J-M. Dufour, J-P. Garçonnet, C. Bayer, B. Meyer, M. Louis-Jacquet, P-A. Holstein, M. Bernard, J. Bruneau, F. Mucchielli, J-P. Le Breton, P. Lascaux, D. Desenne
Publikováno v:
Laser and Particle Beams. 12:329-342
The laser program developed at the Centre d'Etudes de Limeil-Valenton, Saint-Georges, France (CEL-V) is concentrated on a systematic investigation of indirect drive fusion; by comparison with direct drive, this process is expected to provide the requ
Autor:
J. M. Koenig, R. Benattar, D. Schirmann, Pascal Salières, Alain Mens, J. P. Le Breton, J. L. Bocher, D. Mazataud
Publikováno v:
Journal of Optics. 24:129-134
The spectral sensitivity of a thinned backside illuminated CCD (TH 7395A from Thomson TCS) has been studied in the 10 to 20 nm spectral range. The authors describe the readout device used for checks on the laser plasma source of the Ecole Polytechniq
Autor:
D. Juraszek, A. Decoster, M. Bernard, D. Schirmann, P.A. Holstein, R. Dautray, J. P. Lebreton, F. Mucchielli, J. Lachkar, D. Desenne, J. L. Bocher, J.P. Watteau, J. Ouvry, M. Andre, B. Meyer, J. Bruneau, J.M. Dufour, J. Coutant, D. Babonneau, B. Duborgel, D. Véron, J. P. Jadaud, J. P. Garçonnet, M. Louis-Jacquet, A. Coudeville, Guy Schurtz, C. Bayer, M. Decroisette
Publikováno v:
Laser and Particle Beams. 10:557-571
Implosion experiments performed at Centre d'Etudes de Limeil-Valenton in the indirect drive scheme using the two-beams Nd:glass laser facility Phebus at the energy level = 6 kJ (blue light) are presented. A final density of compressed DT close to 100
Publikováno v:
Laser and Particle Beams. 10:827-839
Soft X-ray imaging detection is usually made by using 101–01, 101–07, or SA1 Kodak films. Recent progress in thinned CCD fabrication allows us now to replace films by thinned CCDs to detect UV soft X-ray light with an enhanced sensitivity. We dev
Publikováno v:
Journal of Applied Physics. 70:1980-1986
The Phebus laser was used to irradiate gold targets at λ=0.35 μm; the laser pulse was 0.7 or 1.3 ns and the energy on target 1 to 1.8 kJ. The incident intensity was varied from 3×1013 to 3×1015 W/cm2. The time history of x‐ray emission was moni
Publikováno v:
Laser and Particle Beams. 9:527-540
We present results of X-ray emission by the rear side of gold thin targets irradiated by the Phebus laser at λ = 0.35 μm, τ = 0.7 and 1.3 ns, and EL = 1.5 kJ. A streak camera coupled with a transmission grating gave the time-resolved X-ray emissio