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15 results on '"BATON, S. D."'

1. Measuring fast electron spectra and laser absorption in relativistic laser-solid interactions using differential bremsstrahlung photon detectors

Author

Scott, R. H. H., Clark, E. L., Perez, F., Streeter, M. J. V, Davies, J. R., Schlenvoigt, H. -P., Santos, J. J., Hulin, S., Lancaster, K. L., Baton, S. D., Rose, S. J., and Norreys, P. A.

Subjects
Physics - Plasma Physics
Abstract

A photon detector suitable for the measurement of bremsstrahlung spectra generated in relativistically-intense laser-solid interactions is described. The Monte Carlo techniques used to back-out the fast electron spectrum and laser energy absorbed into fast electrons are detailed. A relativistically-intense laser-solid experiment using frequency doubled laser light is used to demonstrate the effective operation of the detector. The experimental data was interpreted using the 3-spatial-dimension Monte Carlo code MCNPX (Pelowitz 2008), and the fast electron temperature found to be 125 keV.

Published
2013
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2. Controlling fast electron beam divergence using two laser pulses

Author

Scott, R. H. H., Beaucourt, C., Schlenvoigt, H. -P., Markey, K., Lancaster, K. L., Ridgers, C. P., Brenner, C. M., Pasley, J., Gray, R. J., Musgrave, I. O., Robinson, A. P. L, Li, K., Notley, M. M., Davies, J. R., Baton, S. D., Santos, J. J., Feugeas, J. -L., Nicolaï, Ph., Malka, G., Tikhonchuk, V. T., McKenna, P., Neely, D., Rose, S. J., and Norreys, P. A.

Subjects
Physics - Plasma Physics
Abstract

This paper describes the first experimental demonstration of the guiding of a relativistic electron beam in a solid target using two co-linear, relativistically intense, picosecond laser pulses. The first pulse creates a magnetic field which guides the higher current fast electron beam generated by the second pulse. The effects of intensity ratio, delay, total energy and intrinsic pre-pulse are examined. Thermal and K{\alpha} imaging showed reduced emission size, increased peak emission and increased total emission at delays of 4 - 6 ps, an intensity ratio of 10 : 1 (second:first) and a total energy of 186 J. In comparison to a single, high contrast shot, the inferred fast electron divergence is reduced by 2.7 times, while the fast electron current density is increased by a factor of 1.8. The enhancements are reproduced with modelling and are shown to be due to the self-generation of magnetic fields. Such a scheme could be of considerable benefit to fast ignition inertial fusion.

Published
2010
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4. Density and temperature characterization of long-scale length, near-critical density controlled plasma produced from ultra-low density plastic foam

Author

Chen, S. N., primary, Iwawaki, T., additional, Morita, K., additional, Antici, P., additional, Baton, S. D., additional, Filippi, F., additional, Habara, H., additional, Nakatsutsumi, M., additional, Nicolaï, P., additional, Nazarov, W., additional, Rousseaux, C., additional, Starodubstev, M., additional, Tanaka, K. A., additional, and Fuchs, J., additional

Published
2016
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5. Fast electron propagation in high-density plasmas created by 1D shock wave compression: experiments and simulations

Author

Santos, J. J., Batani, D., Mckenna, P., Baton, S. D., Dorchies, F., Dubrouil, A., Fourment, C., Hulin, S., Humieres, E. D., Ph Nicolai, Gremillet, L., Debayle, A., Honrubia, J. J., Carpeggiani, P., Veltcheva, M., Quinn, M. N., Brambrink, E., Tikhonchuk, V., Centre d'Etudes Lasers Intenses et Applications (CELIA), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB), Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Dipartimento di Fisica 'Giuseppe Occhialini' = Department of Physics 'Giuseppe Occhialini' [Milano-Bicocca], Università degli Studi di Milano-Bicocca [Milano] (UNIMIB), SUPA, Department of Physics (SUPA), University of Strathclyde [Glasgow], Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Pôle Fromager AOP du Massif Central, Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Universidad Politécnica de Madrid (UPM), Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), and Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB)

Subjects
[PHYS]Physics [physics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience; no abstract

Published
2010

6. Unraveling resistive versus collisional contributions to relativistic electron beam stopping power in cold-solid and in warm-dense plasmas

Author

Vauzour, B, Debayle, A, Vaisseau, X, Hulin, S, Schlenvoigt, H, Batani, D, Baton, S, Honrubia, J, Nicolai, P, Beg, F, Benocci, R, Chawla, S, Coury, M, Dorchies, F, Fourment, C, D'Humieres, E, Jarrot, L, Mckenna, P, Rhee, Y, Tikhonchuk, V, Volpe, L, Yahia, V, Santos, J, Vauzour B., Debayle A., Vaisseau X., Hulin S., Schlenvoigt H. -P., Batani D., Baton S. D., Honrubia J. J., Nicolai Ph., Beg F. N., Benocci R., Chawla S., Coury M., Dorchies F., Fourment C., D'Humieres E., Jarrot L. C., McKenna P., Rhee Y. J., Tikhonchuk V. T., Volpe L., Yahia V., Santos J. J., Vauzour, B, Debayle, A, Vaisseau, X, Hulin, S, Schlenvoigt, H, Batani, D, Baton, S, Honrubia, J, Nicolai, P, Beg, F, Benocci, R, Chawla, S, Coury, M, Dorchies, F, Fourment, C, D'Humieres, E, Jarrot, L, Mckenna, P, Rhee, Y, Tikhonchuk, V, Volpe, L, Yahia, V, Santos, J, Vauzour B., Debayle A., Vaisseau X., Hulin S., Schlenvoigt H. -P., Batani D., Baton S. D., Honrubia J. J., Nicolai Ph., Beg F. N., Benocci R., Chawla S., Coury M., Dorchies F., Fourment C., D'Humieres E., Jarrot L. C., McKenna P., Rhee Y. J., Tikhonchuk V. T., Volpe L., Yahia V., and Santos J. J.

Abstract

We present results on laser-driven relativistic electron beam propagation through aluminum samples, which are either solid and cold or compressed and heated by laser-induced shock. A full numerical description of fast electron generation and transport is found to reproduce the experimental absolute K-alpha yield and spot size measurements for varying target thicknesses, and to sequentially quantify the collisional and resistive electron stopping powers. The results demonstrate that both stopping mechanisms are enhanced in compressed Al samples and are attributed to the increase in the medium density and resistivity, respectively. For the achieved time-and space-averaged electronic current density, < j(h)> similar to 8 x 10(10) A/cm(2) in the samples, the collisional and resistive stopping powers in warm and compressed Al are estimated to be 1.5 keV/mu m and 0.8 keV/mu m, respectively. By contrast, for cold and solid Al, the corresponding estimated values are 1.1 keV/mu m and 0.6 keV/mu m. Prospective numerical simulations involving higher j(h) show that the resistive stopping power can reach the same level as the collisional one. In addition to the effects of compression, the effect of the transient behavior of the resistivity of Al during relativistic electron beam transport becomes progressively more dominant, and for a significantly high current density, j(h) similar to 10(12) A/cm(2), cancels the difference in the electron resistive stopping power (or the total stopping power in units of areal density) between solid and compressed samples. Analytical calculations extend the analysis up to j(h) = 10(14) A/cm(2) (representative of the full-scale fast ignition scenario of inertial confinement fusion), where a very rapid transition to the Spitzer resistivity regime saturates the resistive stopping power, averaged over the electron beam duration, to values of similar to 1 keV/mu m. (C) 2014 AIP Publishing LLC.

Published
2014

7. Enhanced hot-electron localization and heating in high-contrast ultraintense laser irradiation of microcone targets

Author

Rassuchine, J., Humieres, E. D., Baton, S. D., Guillou, P., Koenig, M., Chahid, M., Perez, F., Fuchs, J., patrick Audebert, Kodama, R., Nakatsutsumi, M., Ozaki, N., Batani, D., Morace, A., Redaelli, R., Gremillet, L., Rousseaux, C., Dorchies, F., Fourment, C., Santos, J. J., Adams, J., Korgan, G., Malekos, S., Hansen, S. B., Shepherd, R., Flippo, K., Sentoku, Y., Cowan, T. E., Centre d'Etudes Lasers Intenses et Applications (CELIA), Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Critical Care Department, Hospital de Sabadell, CIBER Enfermedades Respiratorias, Institut of Applied Physics (IAP), Friedrich-Schiller-Universität = Friedrich Schiller University Jena [Jena, Germany], Graduate School of Engineering, Osaka University, Graduate School of Engineering, Graduate School of Engineering [Suita, Osaka], Osaka University [Osaka], Dipartimento di Fisica 'Giuseppe Occhialini' = Department of Physics 'Giuseppe Occhialini' [Milano-Bicocca], Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), DAM Île-de-France (DAM/DIF), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB), Osaka University, and Università degli Studi di Milano-Bicocca [Milano] (UNIMIB)

Subjects
[PHYS]Physics [physics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience; no abstract

Published
2009

8. Relativistic high-current electron-beam stopping-power characterization in solids and plasmas: collisional versus resistive effects.

Author

Vauzour, B., Santos, J.J., Debayle, Arnaud Philippe Henri, Hulin, S., Schlenvoigt, H.-P., Vaisseau, X., Batani, D., Baton, S. D., Honrubia Checa, José Javier, Vauzour, B., Santos, J.J., Debayle, Arnaud Philippe Henri, Hulin, S., Schlenvoigt, H.-P., Vaisseau, X., Batani, D., Baton, S. D., and Honrubia Checa, José Javier

Abstract

We present experimental and numerical results on intense-laser-pulse-produced fast electron beams transport through aluminum samples, either solid or compressed and heated by laser-induced planar shock propagation. Thanks to absolute K� yield measurements and its very good agreement with results from numerical simulations, we quantify the collisional and resistive fast electron stopping powers: for electron current densities of � 8 � 1010 A=cm2 they reach 1:5 keV=�m and 0:8 keV=�m, respectively. For higher current densities up to 1012 A=cm2, numerical simulations show resistive and collisional energy losses at comparable levels. Analytical estimations predict the resistive stopping power will be kept on the level of 1 keV=�m for electron current densities of 1014 A=cm2, representative of the full-scale conditions in the fast ignition of inertially confined fusion targets.

Published
2012

9. Experimental characterization of fast electron stopping power in dense media ranging from solid to warm and dense matter

Author

Santos, J, Hulin, S, Vauzour, B, Vaisseau, X, Batani, D, Bouilleaud, R, Deneuville, F, Dorchies, F, Feugeas, J, Fourment, C, D'Humieres, E, Nicolai, P, Tikhonchuk, V, Touati, M, Debayle, A, Honrubia, J, Gremillet, L, Ceccotti, T, Floquet, V, Benocci, R, Morace, A, Veltcheva, M, Volpe, L, Baton, S, Perez, F, Schlenvoigt, H, Yahia, V, Beg, F, Chawla, S, Jarrot, L, Peebles, J, Sawada, H, Sorokovikova, A, Wei, M, Fedosejevs, R, Kerr, S, Coury, M, Gray, R, Mckenna, P, Li, K, Davies, J, Rhee, Y, Mclean, H, Patel, P, Santos J. J., Hulin S., Vauzour B., Vaisseau X., Batani D., Bouilleaud R., Deneuville F., Dorchies F., Feugeas J. -L., Fourment C., D'Humieres E., Nicolai Ph., Tikhonchuk V. T., Touati M., Debayle A., Honrubia J. J., Gremillet L., Ceccotti T., Floquet V., Benocci R., Morace A., Veltcheva M., Volpe L., Baton S. D., Perez F., Schlenvoigt H. -P., Yahia V., Beg F. N., Chawla S., Jarrot L. C., Peebles J., Sawada H., Sorokovikova A., Wei M., Fedosejevs R., Kerr S., Coury M., Gray R., McKenna P., Li K., Davies J. R., Rhee Y., McLean H., Patel P., Santos, J, Hulin, S, Vauzour, B, Vaisseau, X, Batani, D, Bouilleaud, R, Deneuville, F, Dorchies, F, Feugeas, J, Fourment, C, D'Humieres, E, Nicolai, P, Tikhonchuk, V, Touati, M, Debayle, A, Honrubia, J, Gremillet, L, Ceccotti, T, Floquet, V, Benocci, R, Morace, A, Veltcheva, M, Volpe, L, Baton, S, Perez, F, Schlenvoigt, H, Yahia, V, Beg, F, Chawla, S, Jarrot, L, Peebles, J, Sawada, H, Sorokovikova, A, Wei, M, Fedosejevs, R, Kerr, S, Coury, M, Gray, R, Mckenna, P, Li, K, Davies, J, Rhee, Y, Mclean, H, Patel, P, Santos J. J., Hulin S., Vauzour B., Vaisseau X., Batani D., Bouilleaud R., Deneuville F., Dorchies F., Feugeas J. -L., Fourment C., D'Humieres E., Nicolai Ph., Tikhonchuk V. T., Touati M., Debayle A., Honrubia J. J., Gremillet L., Ceccotti T., Floquet V., Benocci R., Morace A., Veltcheva M., Volpe L., Baton S. D., Perez F., Schlenvoigt H. -P., Yahia V., Beg F. N., Chawla S., Jarrot L. C., Peebles J., Sawada H., Sorokovikova A., Wei M., Fedosejevs R., Kerr S., Coury M., Gray R., McKenna P., Li K., Davies J. R., Rhee Y., McLean H., and Patel P.

Published
2012

10. Enhanced Hot Electron Localization and Heating in High-Contrast Ultra-Intense Laser Irradiation of Sharp Micro-Cone Targets

Author

Rassuchine, J., D’Humières, E., Baton, S. D., Guillou, P., Koenig, M., Fuchs, J., Audebert, P., Kodama, R., Nakatsutsumi, M., Ozaki, N., Batani, D., Morace, A., Redaelli, R., Gremillet, L., Rousseaux, C., Dorchies, F., Fourment, C., Santos, J. J., Adams, J., Korgan, G., Malekos, S., Hansen, S. B., Shepherd, R., Flippo, K., Gaillard, S., Sentoku, Y., Cowan, T. E., Rassuchine, J., D’Humières, E., Baton, S. D., Guillou, P., Koenig, M., Fuchs, J., Audebert, P., Kodama, R., Nakatsutsumi, M., Ozaki, N., Batani, D., Morace, A., Redaelli, R., Gremillet, L., Rousseaux, C., Dorchies, F., Fourment, C., Santos, J. J., Adams, J., Korgan, G., Malekos, S., Hansen, S. B., Shepherd, R., Flippo, K., Gaillard, S., Sentoku, Y., and Cowan, T. E.

Abstract

We report experiments demonstrating enhanced coupling efficiencies employing high contrast laser irradiation of nano-fabricated conical targets. Peak temperatures near 200 eV are observed with modest laser energy (10 J), revealing similarities in hot electron localization and material heating to reduced mass targets. Collisional particle-in-cell simulations attribute this enhancement to self-generated resistive magnetic fields forming within the cone wall, which effectively confine the energetic electrons to heat a reduced volume at the cone tip.

Published
2009

11. Fast electron beam measurements from relativistically intense, frequency-doubled laser–solid interactions

Author

Scott, R H H, primary, Pérez, F, additional, Streeter, M J V, additional, Clark, E L, additional, Davies, J R, additional, Schlenvoigt, H-P, additional, Santos, J J, additional, Hulin, S, additional, Lancaster, K L, additional, Dorchies, F, additional, Fourment, C, additional, Vauzour, B, additional, Soloviev, A A, additional, Baton, S D, additional, Rose, S J, additional, and Norreys, P A, additional

Published
2013
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12. Fast electron propagation in high-density plasmas created by 1D shock wave compression: Experiments and simulations

Author

Santos, J J, primary, Batani, D, additional, McKenna, P, additional, Baton, S D, additional, Dorchies, F, additional, Dubrouil, A, additional, Fourment, C, additional, Hulin, S, additional, d'Humières, E, additional, Nicolaï, P H, additional, Gremillet, L, additional, Debayle, A, additional, Honrubia, J J, additional, Carpeggiani, P, additional, Veltcheva, M, additional, Quinn, M N, additional, Brambrink, E, additional, and Tikhonchuk, V, additional

Published
2010
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13. Heating of solid target in electron refluxing dominated regime with ultra-intense laser

Author

Nakatsutsumi, M, primary, Kodama, R, additional, Aglitskiy, Y, additional, Akli, K U, additional, Batani, D, additional, Baton, S D, additional, Beg, F N, additional, Benuzzi-Mounaix, A, additional, Chen, S N, additional, Clark, D, additional, Davies, J R, additional, Freeman, R R, additional, Fuchs, J, additional, Green, J S, additional, Gregory, C D, additional, Guillou, P, additional, Habara, H, additional, Heathcote, R, additional, Hey, D S, additional, Highbarger, K, additional, Jaanimagi, P, additional, Key, M H, additional, Koenig, M, additional, Krushelnick, K, additional, Lancaster, K L, additional, Loupias, B, additional, Ma, T, additional, Macphee, A, additional, Mackinonn, A J, additional, Mima, K, additional, Morace, A, additional, Nakamura, H, additional, Norryes, P A, additional, Piazza, D, additional, Rousseaux, C, additional, Stephans, R B, additional, Storm, M, additional, Tampo, M, additional, Theobald, W, additional, Woerkom, L V, additional, Weber, R L, additional, Wei, M S, additional, and Woolsey, N C, additional

Published
2008
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14. Single-shot divergence measurements of a laser-generated relativistic electron beam

Author

Perez, F., Baton, S. D., Koenig, M., Chen, C. D., Hey, D., Key, M. H., Pape, S. Le, Ma, T., McLean, H. S., MacPhee, A. G., Patel, P. K., Ping, Y., Beg, F. N., Higginson, D. P., Murphy, C. W., Sawada, H., Westover, B., Yabuuchi, T., Akli, K. U., Giraldez, E., Hoppe, M. Jr., Shearer, C., Stephens, R. B., Gremillet, L., Lefebvre, E., Freeman, R. R., Kemp, G. E., Krygier, A. G., Woerkom, L. D. Van, Fedosejevs, R., Friesen, R. H., Tsui, Y. Y., Turnbull, D., Perez, F., Baton, S. D., Koenig, M., Chen, C. D., Hey, D., Key, M. H., Pape, S. Le, Ma, T., McLean, H. S., MacPhee, A. G., Patel, P. K., Ping, Y., Beg, F. N., Higginson, D. P., Murphy, C. W., Sawada, H., Westover, B., Yabuuchi, T., Akli, K. U., Giraldez, E., Hoppe, M. Jr., Shearer, C., Stephens, R. B., Gremillet, L., Lefebvre, E., Freeman, R. R., Kemp, G. E., Krygier, A. G., Woerkom, L. D. Van, Fedosejevs, R., Friesen, R. H., Tsui, Y. Y., and Turnbull, D.

Abstract

Copyright 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Physics of Plasmas, 17(11), 113106_1-113106_7, 2010 and may be found at http://dx.doi.org/10.1063/1.3514595

15. Single-shot divergence measurements of a laser-generated relativistic electron beam

Author

Perez, F., Baton, S. D., Koenig, M., Chen, C. D., Hey, D., Key, M. H., Pape, S. Le, Ma, T., McLean, H. S., MacPhee, A. G., Patel, P. K., Ping, Y., Beg, F. N., Higginson, D. P., Murphy, C. W., Sawada, H., Westover, B., Yabuuchi, T., Akli, K. U., Giraldez, E., Hoppe, M. Jr., Shearer, C., Stephens, R. B., Gremillet, L., Lefebvre, E., Freeman, R. R., Kemp, G. E., Krygier, A. G., Woerkom, L. D. Van, Fedosejevs, R., Friesen, R. H., Tsui, Y. Y., Turnbull, D., Perez, F., Baton, S. D., Koenig, M., Chen, C. D., Hey, D., Key, M. H., Pape, S. Le, Ma, T., McLean, H. S., MacPhee, A. G., Patel, P. K., Ping, Y., Beg, F. N., Higginson, D. P., Murphy, C. W., Sawada, H., Westover, B., Yabuuchi, T., Akli, K. U., Giraldez, E., Hoppe, M. Jr., Shearer, C., Stephens, R. B., Gremillet, L., Lefebvre, E., Freeman, R. R., Kemp, G. E., Krygier, A. G., Woerkom, L. D. Van, Fedosejevs, R., Friesen, R. H., Tsui, Y. Y., and Turnbull, D.

Abstract

Copyright 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Physics of Plasmas, 17(11), 113106_1-113106_7, 2010 and may be found at http://dx.doi.org/10.1063/1.3514595

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