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1. Analysis of a kinetic model for electron heat transport in inertial confinement fusion plasmas

Author

Chrisment, A., Loiseau, P., Feugeas, J. -L., Masson-Laborde, P. -E., Mathiaud, J., Tikhonchuk, V., and Nicolaï, Ph.

Subjects
Physics - Plasma Physics
Abstract

To determine the electron heat flux density on macroscopic scales, the most widely used approach is to solve a diffusion equation through a multi-group technique. This method is however restricted to transport induced by temperature gradients without accounting for other sources of fast electrons because the electric field induced by the charge separation is indirectly treated. In addition, significant discrepancies are reported on the underlying distribution function when compared to complete kinetic calculations. These limitations motivate the research for alternative reduced kinetic models. The physical content of one of them is here deepened, its precision improved and the benefit of its usage compared to other models discussed., Comment: 13 pages, 10 figures

Published
2022
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3. AWBS kinetic modeling of electrons with nonlocal Ohms law in plasmas relevant to inertial confinement fusion

Author

Holec, M., Loiseau, P., Debayle, A., Brodrick, J. P., Del Sorbo, D., Ridgers, C. P., Tikhonchuk, V., Feugeas, J. -L., Nicolai, Ph., Dubroca, B., and Kingham, R. J.

Subjects
Physics - Plasma Physics
Abstract

The interaction of lasers with plasmas very often leads to nonlocal transport conditions, where the classical hydrodynamic model fails to describe important microscopic physics related to highly mobile particles. In this study we analyze and further propose a modification of the Albritton- Williams-Bernstein-Swartz collision operator Phys. Rev. Lett 57, 1887 (1986) for the nonlocal electron transport under conditions relevant to ICF. The electron distribution function provided by this modification exhibits some very desirable properties when compared to the full Fokker- Planck operator in the local diffusive regime, and also performs very well when benchmarked against Vlasov-Fokker-Planck and collisional PIC codes in the nonlocal transport regime, where we find that the effect of the electric field via the nonlocal Ohms law is an essential ingredient in order to capture the electron kinetics properly., Comment: 16 pages, 5 figures

Published
2018

5. Extension of a Reduced Entropic Model of Electron Transport to Magnetized Nonlocal Regimes of High-Energy-Density Plasmas

Author

Del Sorbo, D., Feugeas, J. -L., Nicolaï, Ph., Olazabal-Loumé, M., Dubroca, B., and Tikhonchuk, V.

Subjects
Physics - Plasma Physics
Abstract

Laser produced high-energy-density plasmas may contain strong magnetic fields that affect the energy transport, which can be nonlocal. Models which describe the magnetized nonlocal transport are formally complicated and based on many approximations. This paper presents a more straightforward approach to the description of the electron transport in this regime, based on the extension of a reduced entropic model. The calculated magnetized heat fluxes are compared with the known asymptotic limits and applied for studying of a magnetized nonocal plasma thermalization.

Published
2017
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6. Guiding of relativistic electron beams in dense matter by longitudinally imposed strong magnetic fields

Author

Bailly-Grandvaux, M., Santos, J. J., Bellei, C., Forestier-Colleoni, P., Fujioka, S., Giuffrida, L., Honrubia, J. J., Batani, D., Bouillaud, R., Chevrot, M., Cross, J. E., Crowston, R., Dorard, S., Dubois, J. -L., Ehret, M., Gregori, G., Hulin, S., Kojima, S., Loyez, E., Marques, J. -R., Morace, A., Nicolai, Ph., Roth, M., Sakata, S., Schaumann, G., Serres, F., Servel, J., Tikhonchuk, V. T., Woolsey, N., and Zhang, Z.

Subjects
Physics - Plasma Physics
Abstract

High-energy-density flows through dense matter are needed for effective progress in the production of laser-driven intense sources of energetic particles and radiation, in driving matter to extreme temperatures creating state regimes relevant for planetary or stellar science as yet inaccessible at the laboratory scale, or in achieving high-gain laser-driven thermonuclear fusion. When interacting at the surface of dense (opaque) targets, intense lasers accelerate relativistic electron beams which transport a significant fraction of the laser energy into the target depth. However, the overall laser-to-target coupling efficiency is impaired by the large divergence of the electron beam, intrinsic to the laser-plasma interaction. By imposing a longitudinal 600T laser-driven magnetic-field, our experimental results show guided >10MA-current of MeV-electrons in solid matter. Due to the applied magnetic field, the transported energy-density and the peak background electron temperature at the 60micron-thick targets rear surface rise by factors 5, resulting from unprecedentedly efficient guiding of relativistic electron currents., Comment: 11 pages, 7 figures

Published
2016

7. Laser-driven platform for generation and characterization of strong quasi-static magnetic fields

Author

Santos, J. J., Bailly-Grandvaux, M., Giuffrida, L., Forestier-Colleoni, P., Fujioka, S., Zhang, Z., Korneev, Ph., Bouillaud, R., Dorard, S., Batani, D., Chevrot, M., Cross, J., Crowston, R., Dubois, J. -L., Gazave, J., Gregori, G., d'Humières, E., Hulin, S., Ishihara, K., Kojima, S., Loyez, E., Marquès, J. -R., Morace, A., Nicolaï, Ph., Peyrusse, O., Poyé, A., Raffestin, D., Ribolzi, J., Roth, M., Schaumann, G., Serres, F., Tikhonchuk, V. T., Vacar, Ph., and Woolsey, N.

Subjects
Physics - Plasma Physics
Abstract

Quasi-static magnetic-fields up to $800\,$T are generated in the interaction of intense laser pulses ($500\,$J, $1\,$ns, $10^{17}\,$W/cm$^2$) with capacitor-coil targets of different materials. The reproducible magnetic-field peak and rise-time, consistent with the laser pulse duration, were accurately inferred from measurements with GHz-bandwidth inductor pickup coils (B-dot probes). Results from Faraday rotation of polarized optical laser light and deflectometry of energetic proton beams are consistent with the B-dot probe measurements at the early stages of the target charging, up to $t\approx 0.35\,$ns, and then are disturbed by radiation and plasma effects. The field has a dipole-like distribution over a characteristic volume of $1\,$mm$^3$, which is coherent with theoretical expectations. These results demonstrate a very efficient conversion of the laser energy into magnetic fields, thus establishing a robust laser-driven platform for reproducible, well characterized, generation of quasi-static magnetic fields at the kT-level, as well as for magnetization and accurate probing of high-energy-density samples driven by secondary powerful laser or particle beams., Comment: 16 pages, 7 figures

Published
2015

8. Anomalous Self-Generated Electrostatic Fields in Nanosecond Laser-Plasma Interaction

Author

Lancia, L., Grech, M., Weber, S., Marquès, J. -R., Romagnani, L., Nakatsutsumi, M., Antici, P., Bellue, A., Bourgeois, N., Feugeas, J. -L., Grismayer, T., Lin, T., Nicolaï, Ph., Nkonga, B., Audebert, P., Kodama, R., Tikhonchuk, V. T., and Fuchs, J.

Subjects
Physics - Plasma Physics
Abstract

Electrostatic (E) fields associated with the interaction of a well-controlled, high-power, nanosecond laser pulse with an underdense plasma are diagnosed by proton radiography. Using a current 3D wave propagation code equipped with nonlinear and nonlocal hydrodynamics, we can model the measured E-fields that are driven by the laser ponderomotive force in the region where the laser undergoes filamentation. However, strong fields of up to 110 MV/m measured in the first millimeter of propagation cannot be reproduced in the simulations. This could point to the presence of unexpected strong thermal electron pressure gradients possibly linked to ion acoustic turbulence, thus emphasizing the need for the development of full kinetic collisional simulations in order to properly model laser-plasma interaction in these strongly nonlinear conditions., Comment: 12 pages, 4 figures, submitted to Physics of Plasmas

Published
2011
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9. 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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10. Effects of hydrogen concentration in ablator material on stimulated Raman scattering, two-plasmon decay, and hot electrons for direct-drive inertial confinement fusion

Author

Kawasaki, K., primary, Cristoforetti, G., additional, Idesaka, T., additional, Hironaka, Y., additional, Tanaka, D., additional, Batani, D., additional, Fujioka, S., additional, Gizzi, L. A., additional, Hata, M., additional, Johzaki, T., additional, Katagiri, K., additional, Kodama, R., additional, Matsuo, S., additional, Nagatomo, H., additional, Nicolai, Ph., additional, Ozaki, N., additional, Sentoku, Y., additional, Takizawa, R., additional, Yogo, A., additional, Yamada, H., additional, and Shigemori, K., additional

Published
2023
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11. Investigation on the origin of hot electrons in laser plasma interaction at shock ignition intensities

Author

Cristoforetti, G., primary, Baffigi, F., additional, Batani, D., additional, Dudzak, R., additional, Fedosejevs, R., additional, Filippov, E. D., additional, Gajdos, P., additional, Juha, L., additional, Khan, M., additional, Koester, P., additional, Krus, M., additional, Mancelli, D., additional, Martynenko, A. S., additional, Nicolai, Ph., additional, Pikuz, S. A., additional, Renner, O., additional, Tentori, A., additional, Volpe, L., additional, Woolsey, N., additional, Zeraouli, G., additional, and Gizzi, L. A., additional

Published
2023
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12. Multibeam laser–plasma interaction at the Gekko XII laser facility in conditions relevant for direct-drive inertial confinement fusion

Author

Cristoforetti, G., primary, Koester, P., additional, Atzeni, S., additional, Batani, D., additional, Fujioka, S., additional, Hironaka, Y., additional, Hüller, S., additional, Idesaka, T., additional, Katagiri, K., additional, Kawasaki, K., additional, Kodama, R., additional, Mancelli, D., additional, Nicolai, Ph., additional, Ozaki, N., additional, Schiavi, A., additional, Shigemori, K., additional, Takizawa, R., additional, Tamagawa, T., additional, Tanaka, D., additional, Tentori, A., additional, Umeda, Y., additional, Yogo, A., additional, and Gizzi, L. A., additional

Published
2023
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14. Development of an experimental platform for the investigation of laser–plasma interaction in conditions relevant to shock ignition regime

Author

Tamagawa, T., primary, Hironaka, Y., additional, Kawasaki, K., additional, Tanaka, D., additional, Idesaka, T., additional, Ozaki, N., additional, Kodama, R., additional, Takizawa, R., additional, Fujioka, S., additional, Yogo, A., additional, Batani, D., additional, Nicolai, Ph., additional, Cristoforetti, G., additional, Koester, P., additional, Gizzi, L. A., additional, and Shigemori, K., additional

Published
2022
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17. Experimental study of fast electron propagation in compressed matter

Author

Vauzour, B., Santos, J.J., Batani, D., Baton, S.D., Koenig, M., Nicolaï, Ph., Perez, F., Beg, F.N., Benedetti, C., Benocci, R., Brambrink, E., Chawla, S., Coury, M., Dorchies, F., Fourment, C., Galimberti, M., Gizzi, L.A., Heathcote, R., Higginson, D.P., Honrubia, J.J., Hulin, S., Jafer, R., Jarrot, L.C., Labate, L., Lancaster, K., Köster, P., MacKinnon, A.J., McKenna, P., McPhee, A.G., Nazarov, W., Pasley, J., Ramis, R., Rhee, Y., Regan, C., Ribeyre, X., Richetta, M., Serres, F., Schlenvoigt, H.-P., Schurtz, G., Sgattoni, A., Spindloe, C., Vaisseau, X., Volpe, L., and Yahia, V.

Published
2011
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19. Energetic α-particle sources produced through proton-boron reactions by high-energy high-intensity laser beam

Author

Bonvalet, J., Nicolai, Ph., Raffestin, D., E., D’humieres, Batani, D., Tikhonchuk, V., Kantarelou, V., Giuffrida, L., Tosca, M., Korn, G., Picciotto, A., Morace, A., Abe, Y., Arikawa, Y., Fujioka, S., Fukuda, Yuji, Kuramitsu, Y., Habara, H., Margarone, D., and Yuji, Fukuda

Subjects
Nuclear Theory, Physics::Accelerator Physics, Nuclear Experiment
Abstract

In an experiment performed with a high-intensity and high-energy laser system, α-particle production in proton-boron reaction by using a laser-driven proton beam was measured. α particles were observed from the front and also from the rear side, even after a 2-mm-thick boron target. The data obtained in this experiment have been analyzed using a sequence of numerical simulations. The simulations clarify the mechanisms of α-particle production and transport through the boron targets. α-particle energies observed in the experiment and in the simulation reach 10–20 MeV through energy transfer from 20–30 MeV energy incident protons. Despite the lower cross sections for protons with energy above the sub-MeV resonances in the proton-boron reactions, 10^8–10^9 α particles per steradian have been detected.

Published
2021

20. AWBS kinetic modeling of electrons with nonlocal Ohms law in plasmas relevant to inertial confinement fusion

Author

Holec, M., Loiseau, P., Debayle, A., Brodrick, J. P., Del Sorbo, D., Ridgers, C. P., Tikhonchuk, V., Feugeas, J. -L., Nicolai, Ph., Dubroca, B., and Kingham, R. J.

Subjects
Plasma Physics (physics.plasm-ph), Physics::Plasma Physics, FOS: Physical sciences, Physics - Plasma Physics
Abstract

The interaction of lasers with plasmas very often leads to nonlocal transport conditions, where the classical hydrodynamic model fails to describe important microscopic physics related to highly mobile particles. In this study we analyze and further propose a modification of the Albritton- Williams-Bernstein-Swartz collision operator Phys. Rev. Lett 57, 1887 (1986) for the nonlocal electron transport under conditions relevant to ICF. The electron distribution function provided by this modification exhibits some very desirable properties when compared to the full Fokker- Planck operator in the local diffusive regime, and also performs very well when benchmarked against Vlasov-Fokker-Planck and collisional PIC codes in the nonlocal transport regime, where we find that the effect of the electric field via the nonlocal Ohms law is an essential ingredient in order to capture the electron kinetics properly., Comment: 16 pages, 5 figures

Published
2019
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21. Progress in understanding the role of hot electrons for the shock ignition approach to inertial confinement fusion

Author

Batani, D., Antonelli, L., Barbato, F., Boutoux, G., Colaitis, A., Feugeas, J.L., Folpini, G., Mancelli, D., Nicolai, Ph., Santos, J., Trela, J., Tikhonchuk, V., Badziak, J., Choudukowski, T., Jakubowska, K., Kalinowska, Z., Pisarczyk, T., Rosinki, M., Sawicka, M., Baffigi, F., Cristoforetti, G., D'Amato, F., Koester, P., Gizzi, L.A., Viciani, S., Atzeni, S., Schiavi, A., Skoric, M., Gus'kov, S., Honrubia Checa, José Javier, Limpouch, J., Klimo, O., Skala, J., Gu, Y.J., Krousky, E., Renner, O., Smid, M., Weber, S., Dudzak, R., Krus, M., Ullschmied, J., Batani, D., Antonelli, L., Barbato, F., Boutoux, G., Colaitis, A., Feugeas, J.L., Folpini, G., Mancelli, D., Nicolai, Ph., Santos, J., Trela, J., Tikhonchuk, V., Badziak, J., Choudukowski, T., Jakubowska, K., Kalinowska, Z., Pisarczyk, T., Rosinki, M., Sawicka, M., Baffigi, F., Cristoforetti, G., D'Amato, F., Koester, P., Gizzi, L.A., Viciani, S., Atzeni, S., Schiavi, A., Skoric, M., Gus'kov, S., Honrubia Checa, José Javier, Limpouch, J., Klimo, O., Skala, J., Gu, Y.J., Krousky, E., Renner, O., Smid, M., Weber, S., Dudzak, R., Krus, M., and Ullschmied, J.

Abstract

This paper describes the results of a series of experiments conducted with the PALS laser at intensities of interest for the shock ignition approach to inertial fusion. In particular, we addressed the generation of hot electrons (HE) (determining their average energy and number), as well as the parametric instabilities which are producing them. In addition, we studied the impact of HE on the formation and dynamics of strong shocks.

Published
2019

22. Time evolution of stimulated Raman scattering and two-plasmon decay at laser intensities relevant for shock ignition in a hot plasma

Author

Cristoforetti, G., primary, Antonelli, L., additional, Mancelli, D., additional, Atzeni, S., additional, Baffigi, F., additional, Barbato, F., additional, Batani, D., additional, Boutoux, G., additional, D’Amato, F., additional, Dostal, J., additional, Dudzak, R., additional, Filippov, E., additional, Gu, Y. J., additional, Juha, L., additional, Klimo, O., additional, Krus, M., additional, Malko, S., additional, Martynenko, A. S., additional, Nicolai, Ph., additional, Ospina, V., additional, Pikuz, S., additional, Renner, O., additional, Santos, J., additional, Tikhonchuk, V. T., additional, Trela, J., additional, Viciani, S., additional, Volpe, L., additional, Weber, S., additional, and Gizzi, L. A., additional

Published
2019
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23. Progress in understanding the role of hot electrons for the shock ignition approach to inertial confinement fusion

Author

Batani, D., primary, Antonelli, L., additional, Barbato, F., additional, Boutoux, G., additional, Colaïtis, A., additional, Feugeas, J.-L., additional, Folpini, G., additional, Mancelli, D., additional, Nicolai, Ph., additional, Santos, J., additional, Trela, J., additional, Tikhonchuk, V., additional, Badziak, J., additional, Chodukowski, T., additional, Jakubowska, K., additional, Kalinowska, Z., additional, Pisarczyk, T., additional, Rosinski, M., additional, Sawicka, M., additional, Baffigi, F., additional, Cristoforetti, G., additional, D’Amato, F., additional, Koester, P., additional, Gizzi, L.A., additional, Viciani, S., additional, Atzeni, S., additional, Schiavi, A., additional, Skoric, M., additional, Gus’kov, S., additional, Honrubia, J., additional, Limpouch, J., additional, Klimo, O., additional, Skala, J., additional, Gu, Y.J., additional, Krousky, E., additional, Renner, O., additional, Smid, M., additional, Weber, S., additional, Dudzak, R., additional, Krus, M., additional, and Ullschmied, J., additional

Published
2018
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24. Measurements of parametric instabilities at laser intensities relevant to strong shock generation

Author

Cristoforetti, G., primary, Antonelli, L., additional, Atzeni, S., additional, Baffigi, F., additional, Barbato, F., additional, Batani, D., additional, Boutoux, G., additional, Colaitis, A., additional, Dostal, J., additional, Dudzak, R., additional, Juha, L., additional, Koester, P., additional, Marocchino, A., additional, Mancelli, D., additional, Nicolai, Ph., additional, Renner, O., additional, Santos, J. J., additional, Schiavi, A., additional, Skoric, M. M., additional, Smid, M., additional, Straka, P., additional, and Gizzi, L. A., additional

Published
2018
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25. Experimental observation of parametric instabilities at laser intensities relevant for shock ignition

Author

Cristoforetti, G., Colaitis, A., Antonelli, L., Atzeni, S., Baffigi, F., Batani, D., Barbato, F., Boutoux, G., Dudzak, R., Koester, P., Krousky, E., Labate, L., Nicolai, Ph., Renner, O., Škorić, Miloš M., Tikhonchuk, V., Gizzi, L. A., Cristoforetti, G., Colaitis, A., Antonelli, L., Atzeni, S., Baffigi, F., Batani, D., Barbato, F., Boutoux, G., Dudzak, R., Koester, P., Krousky, E., Labate, L., Nicolai, Ph., Renner, O., Škorić, Miloš M., Tikhonchuk, V., and Gizzi, L. A.

Abstract

We report measurements of parametric instabilities and hot electron generation in a laser intensity regime up to 6 x 10(15) W/cm(2), typical of the shock ignition approach to inertial fusion. Experiments performed at the PALS laboratory in Prague show that the incident laser energy losses are dominated by Stimulated Brillouin Scattering (SBS) rather than by Stimulated Raman Scattering (SRS) or Two-Plasmon Decay (TPD). Results are compared to hydrodynamics simulations using a code that includes self-consistent calculations of non-linear laser plasma interactions and accounts for the laser intensity statistics contained in the beam speckles. Good agreement is found for the backscattered SRS light, and for temperature and flux of hot electrons. The effect of high-intensity speckles on backscattered SRS is also underlined numerically and experimentally. Copyright (C) EPLA, 2017

Published
2017

26. Experimental observation of parametric instabilities at laser intensities relevant for shock ignition

Author

Cristoforetti, Gabriele, Colaitis, A., Antonelli, Luca, Atzeni, Stefano, Baffigi, Federica, Batani, Dimitri, Barbato, Francesco, Boutoux, Guillaume, Dudžak, Roman, Koester, Petra, Krousky, Edouard, Labate, Luca, Nicolai, Ph., Renner, Oldřich, Škorić, Miloš M., Tikhonchuk, Vladimir T., Gizzi, Leonida A., Cristoforetti, Gabriele, Colaitis, A., Antonelli, Luca, Atzeni, Stefano, Baffigi, Federica, Batani, Dimitri, Barbato, Francesco, Boutoux, Guillaume, Dudžak, Roman, Koester, Petra, Krousky, Edouard, Labate, Luca, Nicolai, Ph., Renner, Oldřich, Škorić, Miloš M., Tikhonchuk, Vladimir T., and Gizzi, Leonida A.

Abstract

We report measurements of parametric instabilities and hot electron generation in a laser intensity regime up to 6 x 10(15) W/cm(2), typical of the shock ignition approach to inertial fusion. Experiments performed at the PALS laboratory in Prague show that the incident laser energy losses are dominated by Stimulated Brillouin Scattering (SBS) rather than by Stimulated Raman Scattering (SRS) or Two-Plasmon Decay (TPD). Results are compared to hydrodynamics simulations using a code that includes self-consistent calculations of non-linear laser plasma interactions and accounts for the laser intensity statistics contained in the beam speckles. Good agreement is found for the backscattered SRS light, and for temperature and flux of hot electrons. The effect of high-intensity speckles on backscattered SRS is also underlined numerically and experimentally. Copyright (C) EPLA, 2017

Published
2017

27. Proton radiography of cylindrical laser-driven implosions

Author

Volpe, L., Jafer, R., Vauzour, B., Nicolai, Ph, Santos, J. J., Dorchies, F., Fourment, C., Hulin, S., Regan, C., Perez, F., Baton, S., Lancaster, K., Galimberti, M., Heathcote, R., Tolley, M., Spindloe, Ch, Nazarov, W., Koester, P., Labate, L., Gizzi, L. A., Benedetti, C., Sgattoni, A., Richetta, M., Pasley, J., Beg, F. N., Chawla, S., Higginson, D. P., Mackinnon, A., MacPhee, A. G., Batani, D., Dipartimento di Fisica 'Giuseppe Occhialini' = Department of Physics 'Giuseppe Occhialini' [Milano-Bicocca], Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), 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 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), Pôle Fromager AOP du Massif Central, Critical Care Department, Hospital de Sabadell, CIBER Enfermedades Respiratorias, 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), Laboratoire des matériaux avancés (LMA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Central Laser Facility (CLF), STFC Rutherford Appleton Laboratory (RAL), Science and Technology Facilities Council (STFC)-Science and Technology Facilities Council (STFC), Science and Technology Facilities Council (STFC), University of St Andrews [Scotland], Istituto Nazionale di Ottica (INO), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Intense Laser Irradiation Laboratory–IPCF, Area della Ricerca CNR, Dipartimento di Energia [Milano], Politecnico di Milano [Milan] (POLIMI), International Institute of Clinical Studies, Lawrence Livermore National Laboratory (LLNL), Università degli Studi di Milano-Bicocca [Milano] (UNIMIB), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB), and Consiglio Nazionale delle Ricerche (CNR)

Subjects
[PHYS]Physics [physics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience; no abstract

Published
2011

28. Approach to the study of fast electron transport in cylindrically imploded targets

Author

Del Sorbo, D., primary, Arikawa, Y., additional, Batani, D., additional, Beg, F., additional, Breil, J., additional, Chen, H., additional, Feugeas, J.L., additional, Fujioka, S., additional, Hulin, S., additional, Koga, M., additional, MacLean, H., additional, Morace, A., additional, Namimoto, T., additional, Nazarov, W., additional, Nicolai, Ph., additional, Nishimura, H., additional, Ozaki, T., additional, Sakaki, T., additional, Santos, J.J., additional, Spindloe, Ch., additional, Tanaka, K.A., additional, Vaisseau, X., additional, Veltcheva, M., additional, Yabuchi, T., additional, and Zhang, Z., additional

Published
2015
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30. 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

32. Fast ignitor studies for HiPER

Author

Atzeni, Stefano, Bellei, C, Davies, J. R., Evans, R. G., Honrubia, J. J., Nicolai, Ph, Ribeyre, X, Schurtz, G, Schiavi, Angelo, Badziak, J, MEYER TER VEHN, J, Olazabal, M, Silva, L, and Sorasio, G.

Published
2008

33. Heating of Tantalum plasma for studies on the activation of the 6.238 keV nuclear level of Ta-181

Author

Fedosejevs, R., Gobet, F., Dorchies, F., Fourment, C., Hannachi, F., Aléonard, M.M., Claverie, G., Malka, G., Scheurer, J.N., Tarisien, M., Meot, V., Morel, Pierre, Liesfeld, B., Robson, L., Blasco, F., Descamps, D., Schurtz, G., Nicolai, Ph., 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), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Service de Physique Nucléaire (SERVICE DE PHYSIQUE NUCLéAIRE), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), C. Hidalgo, B.Ph. van Milligen, Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ComputingMethodologies_GENERAL, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], ComputingMilieux_MISCELLANEOUS
Abstract

Poster n° P1.152; International audience

Published
2005

34. Development of the PETawatt Aquitaine Laser system and new perspectives in physics

Author

Batani, D, primary, Koenig, M, additional, Miquel, J L, additional, Ducret, J E, additional, d'Humieres, E, additional, Hulin, S, additional, Caron, J, additional, Feugeas, J L, additional, Nicolai, Ph, additional, Tikhonchuk, V, additional, Serani, L, additional, Blanchot, N, additional, Raffestin, D, additional, Thfoin-Lantuejoul, I, additional, Rosse, B, additional, Reverdin, C, additional, Duval, A, additional, Laniesse, F, additional, Chancé, A, additional, Dubreuil, D, additional, Gastineau, B, additional, Guillard, J C, additional, Harrault, F, additional, Lebœuf, D, additional, Le Ster, J-M, additional, Pès, C, additional, Toussaint, J-C, additional, Leboeuf, X, additional, Lecherbourg, L, additional, Szabo, C I, additional, Dubois, J-L, additional, and Lubrano-Lavaderci, F, additional

Published
2014
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35. Generation of high pressure shocks relevant to the shock-ignition intensity regime

Author

Batani, D., primary, Antonelli, L., additional, Atzeni, S., additional, Badziak, J., additional, Baffigi, F., additional, Chodukowski, T., additional, Consoli, F., additional, Cristoforetti, G., additional, De Angelis, R., additional, Dudzak, R., additional, Folpini, G., additional, Giuffrida, L., additional, Gizzi, L. A., additional, Kalinowska, Z., additional, Koester, P., additional, Krousky, E., additional, Krus, M., additional, Labate, L., additional, Levato, T., additional, Maheut, Y., additional, Malka, G., additional, Margarone, D., additional, Marocchino, A., additional, Nejdl, J., additional, Nicolai, Ph., additional, O'Dell, T., additional, Pisarczyk, T., additional, Renner, O., additional, Rhee, Y. J., additional, Ribeyre, X., additional, Richetta, M., additional, Rosinski, M., additional, Sawicka, M., additional, Schiavi, A., additional, Skala, J., additional, Smid, M., additional, Spindloe, Ch., additional, Ullschmied, J., additional, Velyhan, A., additional, and Vinci, T., additional

Published
2014
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36. 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

37. Gas-induced smoothing of laser beams studied by interaction with thin foils

Author

Benocci, R, Batani, D, Dezulian, R, Redaelli, R, Lucchini, G, Canova, F, Stabile, H, Faure, J, Krousky, E, Masek, K, Pfeifer, M, Skala, J, Dudzak, R, Koenig, M, Tikhonchuk, V, Nicolai, P, Malka, V, Benocci R., Batani D., Dezulian R., Redaelli R., Lucchini G., Canova F., Stabile H., Faure J., Krousky E., Masek K., Pfeifer M., Skala J., Dudzak R., Koenig M., Tikhonchuk V., Nicolai Ph., Malka V., Benocci, R, Batani, D, Dezulian, R, Redaelli, R, Lucchini, G, Canova, F, Stabile, H, Faure, J, Krousky, E, Masek, K, Pfeifer, M, Skala, J, Dudzak, R, Koenig, M, Tikhonchuk, V, Nicolai, P, Malka, V, Benocci R., Batani D., Dezulian R., Redaelli R., Lucchini G., Canova F., Stabile H., Faure J., Krousky E., Masek K., Pfeifer M., Skala J., Dudzak R., Koenig M., Tikhonchuk V., Nicolai Ph., and Malka V.

Abstract

We studied the process of laser beam homogenization in a gas medium placed in front of a thin metallic foil. Experiments were performed using the Prague PALS iodine laser working at 0.44 mu m wavelength and irradiances of about 10(15) W cm(-2). Homogenization was detected both by directly analysing the transmitted laser beam and by studying the shock breakout on the foil rear side. Results show that the gas ionization by the laser pulse induces a strong refraction and produces an effective smoothing of large-scale intensity non-uniformities.

Published
2008

38. Current advances in smoothing of laser intensity profile

Author

Benocci, R, Batani, D, Dezulian, R, Redaelli, R, Lucchini, G, Canova, F, Stabile, H, Faure, J, Krousky, E, Masek, K, Pfeifer, M, Skala, J, Dudzak, R, Koenig, M, Tikhonchuk, V, Nicolai, P, Malka, V, Benocci R., Batani D., Dezulian R., Redaelli R., Lucchini G., Canova F., Stabile H., Faure J., Krousky E., Masek K., Pfeifer M., Skala J., Dudzak R., Koenig M., Tikhonchuk V., Nicolai Ph., Malka V., Benocci, R, Batani, D, Dezulian, R, Redaelli, R, Lucchini, G, Canova, F, Stabile, H, Faure, J, Krousky, E, Masek, K, Pfeifer, M, Skala, J, Dudzak, R, Koenig, M, Tikhonchuk, V, Nicolai, P, Malka, V, Benocci R., Batani D., Dezulian R., Redaelli R., Lucchini G., Canova F., Stabile H., Faure J., Krousky E., Masek K., Pfeifer M., Skala J., Dudzak R., Koenig M., Tikhonchuk V., Nicolai Ph., and Malka V.

Abstract

We present the experimental results, and their analysis, connected to the possibility to control laser inhomogeneities exploiting the non-uniform electron density distribution created by the laser while propagating in a gas jet. The induced self-refraction in the plasma created in the gas medium results in re-distributing local over-intensities over larger surfaces. The experiment at the PALS laser facility has been performed creating a large non-uniformity by a wedge arrangement and recording the static and dynamic images with and without the coupling to an Al target.

Published
2008

43. A study of fast electron energy transport in relativistically intense laser-plasma interactions with large density scalelengths

Author

Scott, R. H. H., primary, Perez, F., additional, Santos, J. J., additional, Ridgers, C. P., additional, Davies, J. R., additional, Lancaster, K. L., additional, Baton, S. D., additional, Nicolai, Ph., additional, Trines, R. M. G. M., additional, Bell, A. R., additional, Hulin, S., additional, Tzoufras, M., additional, Rose, S. J., additional, and Norreys, P. A., additional

Published
2012
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46. Can proton radiography be used to image imploding target in ICF experiments?

Author

Volpe, L., primary, Batani, D., additional, Vauzour, B., additional, Nicolai, Ph., additional, Santos, J. J., additional, Dorchies, F., additional, Fourment, C., additional, Hulin, S., additional, Regan, C., additional, Perez, F., additional, Baton, S., additional, Koenig, M., additional, Lancaster, K., additional, Galimberti, M., additional, Heathcote, R., additional, Tolley, M., additional, Spindloe, Ch., additional, Koester, P., additional, Labate, L., additional, Gizzi, L. A., additional, Benedetti, C., additional, Sgattoni, A., additional, and Richetta, M., additional

Published
2011
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47. Proton radiography of laser-driven imploding target in cylindrical geometry

Author

Volpe, L., primary, Batani, D., additional, Vauzour, B., additional, Nicolai, Ph., additional, Santos, J. J., additional, Regan, C., additional, Morace, A., additional, Dorchies, F., additional, Fourment, C., additional, Hulin, S., additional, Perez, F., additional, Baton, S., additional, Lancaster, K., additional, Galimberti, M., additional, Heathcote, R., additional, Tolley, M., additional, Spindloe, Ch., additional, Koester, P., additional, Labate, L., additional, Gizzi, L. A., additional, Benedetti, C., additional, Sgattoni, A., additional, Richetta, M., additional, Pasley, J., additional, Beg, F., additional, Chawla, S., additional, Higginson, D. P., additional, and MacPhee, A. G., additional

Published
2011
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48. Investigations of plasma jet interaction with ambient gases by multi-frame interferometric and X-ray pinhole camera systems

Author

Kasperczuk, A., primary, Pisarczyk, T., additional, Nicolai, Ph., additional, Stenz, Ch., additional, Tikhonchuk, V., additional, Kalal, M., additional, Ullschmied, J., additional, Krousky, E., additional, Masek, K., additional, Pfeifer, M., additional, Rohlena, K., additional, Skala, J., additional, Klir, D., additional, Kravarik, J., additional, Kubes, P., additional, and Pisarczyk, P., additional

Published
2009
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49. Overview of on-going LIL experiments

Author

Videau, L, primary, Alozy, E, additional, Bailly, I, additional, Borisenko, N, additional, Boutin, J Y, additional, Breil, J, additional, Brygoo, S, additional, Casanova, M, additional, Casner, A, additional, Chauvel, L, additional, Chenais-Popovics, C, additional, Courtois, C, additional, Darbon, S, additional, Depierreux, S, additional, Di-Nicola, J M, additional, Di-Nicola, P, additional, Durut, F, additional, Duval, A, additional, Ebrardt, J, additional, Feugeas, J L, additional, Fourment, C, additional, Gary, S, additional, Gauthier, J C, additional, Grech, M, additional, Henry, O, additional, Herve, A, additional, Hulin, S, additional, Huller, S, additional, Huser, G, additional, Jadaud, J P, additional, Jequier, F, additional, Labaune, Ch, additional, Limpouch, J, additional, Loiseau, P, additional, Lutz, O, additional, Maire, P H, additional, Mangeant, M, additional, Meyer, C, additional, Michel, D T, additional, Miquel, J L, additional, Monteil, M C, additional, Naudy, M, additional, Nazarov, W, additional, Nicolai, Ph, additional, Peyrusse, O, additional, Philippe, F, additional, Raffestin, D, additional, Reverdin, C, additional, Riazuello, G, additional, Romary, Ph, additional, Rosch, R, additional, Rousseaux, C, additional, Soullie, G, additional, Schmitt, S, additional, Schurtz, G, additional, Stenz, Ch, additional, Tassin, V, additional, Thais, F, additional, Thessieux, C, additional, Thiell, G, additional, Theobald, M, additional, Tikhonchuk, V, additional, Ulmer, J L, additional, Villette, B, additional, Wagon, F, additional, and Wrobel, R, additional

Published
2008
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50. The PALS iodine laser-driven jets

Author

Pisarczyk, T, primary, Kasperczuk, A, additional, Krousky, E., additional, Masek, K, additional, Miklaszewski, R, additional, Nicolai, Ph, additional, Pfeifer, M, additional, Pisarczyk, P, additional, Rohlena, K, additional, Stenc, K, additional, Skala, J, additional, Tikhonchuk, V, additional, and Ullschmied, J, additional

Published
2007
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