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On the study of hydrodynamic instabilities in the presence of background magnetic fields in high-energy-density plasmas

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Matter and Radiation at Extremes 2021年第2期6卷 37-45页

作者： M.J.-E.Manuel B.Khiar G.Rigon B.Albertazzi s.R.Klein F.Kroll F.-E.Brack T.Michel P.Mabey s.pikuz J.C.Williams M.Koenig A.Casner C.C.Kuranz General Atomics San DiegoCalifornia 92121USA University of Chicago ChicagoIllinois 60637USA Laboratoire pour l’utilisation des lasers intenses 91128 Palaiseau CedexFrance University of Michigan Ann ArborMichigan 48109USA Helmholtz-Zentrum Dresden-Rossendorf 01328 DresdenGermany Technische Universitat Dresden 01062 DresdenGermany National Research Nuclear University Moscow 115409Russia Centre lasers intenses et applications 33405 Talence CedexFrance

Blast-wave-driven hydrodynamic instabilities are studied in the presence of a background B-field through experiments and simulations in the high-energy-density(HED)physics *** experiments conducted at the Laboratoire pour l’utilisation des lasers intenses(LULI),a laserdriven shock-tube platform was used to generate a hydrodynamically unstable interface with a prescribed sinusoidal surface perturbation,and short-pulse x-ray radiography was used to characterize the instability growth with and without a 10-T *** LULI experiments were modeled in FLAsH using resistive and ideal magnetohydrodynamics(MHD),and comparing the experiments and simulations suggests that the spitzer model implemented in FLAsH is necessary and sufficient for modeling these planar *** results suggest insufficient amplification of the seed B-field,due to resistive diffusion,to alter the hydrodynamic *** the ideal-MHD simulations did not represent the experiments accurately,they suggest that similar HED systems with dynamic plasma-β(=2μ_(0)ρv^(2)/B^(2))values of less than∼100 can reduce the growth of blast-wave-driven Rayleigh–Taylor *** findings validate the resistive-MHD FLAsH modeling that is being used to design future experiments for studying B-field effects in HED plasmas.

关键词： field. hydrodynamic instabilities

Detailed characterization of a laboratory magnetized supercritical collisionless shock and of the associated proton energization

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Matter and Radiation at Extremes 2022年第1期7卷 15-28页

作者： W.Yao A.Fazzini s.N.Chen K.Burdonov P.Antici J.B´eard s.Bolaños A.Ciardi R.Diab E.D.Filippov s.Kisyov V.Lelasseux M.Miceli Q.Moreno V.Nastasa s.Orlando s.pikuz D.C.Popescu G.Revet X.Ribeyre E.d’Humi`eres J.Fuchs LULI–CNRs CEAUPMC Univ Paris 06:Sorbonne Universit´eEcole PolytechniqueInstitut Polytechnique de ParisF-91128 Palaiseau CedexFrance sorbonne Universit´e Observatoire de ParisUniversit´e PSLCNRSLERMAF-75005 ParisFrance ELI-NP “Horia Hulubei”National Institute for Physics and Nuclear Engineering30 Reactorului StreetRO-077125 Bucharest-MagureleRomania IAP Russian Academy of Sciences603155 Nizhny NovgorodRussia INRs-EMT 1650 Blvd.Lionel-BouletVarennesQuebec J3X 1S2Canada LNCMI UPR 3228CNRS-UGA-UPS-INSAF-31400 ToulouseFrance JIHT Russian Academy of Sciences125412 MoscowRussia Universit`a degli studi di Palermo Dipartimento di Fisica e Chimica E.Segr`ePiazza del Parlamento 190134 PalermoItaly INAF–Osservatorio Astronomico di Palermo PalermoItaly University of Bordeaux Centre Lasers Intenses et ApplicationsCNRSCEAUMR 5107F-33405 TalenceFrance ELI-Beamlines Institute of PhysicsCzech Academy of Sciences5 Kvetna 83525241 Dolni BrezanyCzech Republic NRNU MEPhI 115409 MoscowRussia

Collisionless shocks are ubiquitous in the Universe and are held responsible for the production of nonthermal particles and high-energy *** the absence of particle collisions in the system,theory shows that the interaction of an expanding plasma with a pre-existing electromagnetic structure(as in our case)is able to induce energy dissipation and allow shock *** formation can alternatively take place when two plasmas interact,through microscopic instabilities inducing electromagnetic fields that are able in turn to mediate energy dissipation and shock *** our platform in which we couple a rapidly expanding plasma induced by high-power lasers(JLF/Titan at LLNL and LULI2000)with high-strength magnetic fields,we have investigated the generation of a magnetized collisionless shock and the associated particle *** have characterized the shock as being collisionless and *** report here on measurements of the plasma density and temperature,the electromagnetic field structures,and the particle energization in the experiments,under various conditions of ambient plasma and magnetic *** have also modeled the formation of the shocks using macroscopic hydrodynamic simulations and the associated particle acceleration using kinetic particle-in-cell *** a companion paper to Yao et al.[***.17,1177–1182(2021)],here we show additional results of the experiments and simulations,providing more information to allow their reproduction and to demonstrate the robustness of our interpretation of the proton energization mechanism as being shock surfing acceleration.

关键词： field collision shock

short-pulse laser-driven x-ray radiography

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High Power Laser science and Engineering 2016年第3期4卷 101-105页

作者： E.Brambrink s.Baton M.Koenig R.Yurchak N.Bidaut B.Albertazzi J.E.Cross G.Gregori A.Rigby E.Falize A.Pelka F.Kroll s.pikuz Y.sakawa N.Ozaki C.Kuranz M.Manuel C.Li P.Tzeferacos D.Lamb LULI-CNRs Ecole PolytechniqueCEA Universit Paris-saclay UPMC Univ Paris 06 sorbonne Universits Institute for Academic Initiatives Osaka U. Clarendon Laboratory University of Oxford CEA-DAM-DIF HZDR JIHT-RAs Institute of Laser Engineering Osaka U. Graduate school of Engineering Osaka U. Department of Energy Engineering science Faculty of Engineering SciencesKyushu University Plasma science and Fusion Center Massachusetts Institute of Technology Flash Center for Computational science University of Chicago

We have developed a new radiography setup with a short-pulse laser-driven x-ray source. Using a radiography axis perpendicular to both long- and short-pulse lasers allowed optimizing the incident angle of the short-pulse laser on the x-ray source target. The setup has been tested with various x-ray source target materials and different laser *** to noise ratios are presented as well as achieved spatial resolutions. The high quality of our technique is illustrated on a plasma flow radiograph obtained during a laboratory astrophysics experiment on POLARs.

关键词： laboratory astrophysics short-pulse laser x-ray radiography

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Proton deflectometry of a capacitor coil target along two axes

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High Power Laser science and Engineering 2020年第2期8卷 10-18页

作者： P.Bradford M.P.Read M.Ehret L.Antonelli M.Khan N.Booth K.Glize D.Carroll R.J.Clarke R.Heathcote s.Ryazantsev s.pikuz C.spindloe J.D.Moody B.B.Pollock V.T.Tikhonchuk C.P.Ridgers J.J.santos N.C.Woolsey York Plasma Institute Department of PhysicsUniversity of YorkHeslingtonYork YO105DDUK Centre Lasers Intenses et Applications University of Bordeaux-CNRS-CEA33405 TalenceFrance Institut fur Kernphysik Tech.Univ.Darmstadt64289 DarmstadtGermany Central Laser Facility Rutherford Appleton LaboratoryChiltonDidcotSTFCUKRIOxfordshireUK Joint Institute for High Temperatures RASMoscow 125412Russia National Research Nuclear University MEPhI Moscow 115409Russia Lawrence Livermore National Laboratory LivermoreCalifornia 94551USA ELI Beamlines Institute of PhysicsCzech Academy of SciencesZa Radnicic 83525241 DolníBrezanyCzech Republic

A developing application of laser-driven currents is the generation of magnetic fields of picosecond-nanosecond duration with magnitudes exceeding B=10 ***-loop and helical coil targets can direct laser-driven discharge currents along wires to generate spatially uniform,quasi-static magnetic fields on the millimetre ***,we present proton deflectometry across two axes of a single-loop coil ranging from 1 to 2 mm in *** with proton tracking simulations shows that measured magnetic fields are the result of kiloampere currents in the coil and electric charges distributed around the coil *** this dual-axis platform for proton deflectometry,robust measurements can be made of the evolution of magnetic fields in a capacitor coil target.

关键词： strong magnetic field laser-driven coil targets laser-plasma interaction proton deflectometry laboratory astrophysics

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Development of new diagnostics based on LiF detector for pump-probe experiments

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Matter and Radiation at Extremes 2018年第4期3卷 197-206页

作者： T.pikuz A.Faenov NOzaki T.Matsuoka B.Albertazzi N.J.Hartley K.Miyanishi K.Katagiri s.Matsuyama K.Yamauchi H.Habara Y.Inubushi T.Togashi H.Yumoto H.Ohashi Y.Tange T.Yabuuchi M.Yabashi A.N.Grum-Grzhimailo A.Casner I.skobelev s.Makarov s.pikuz G.Rigon M.Koenig K.A.Tanaka T.Ishikawa R.Kodama Graduate school of Engineering Osaka UniversitySuitaOsaka 565-0871Japan Joint Institute for High Temperatures Russian Academy of SciencesMoscow 125412Russia Open and Transdisciplinary Research Initiatives Osaka UniversitySuitaOsaka 565-0871Japan Photon Pioneers Center Osaka UniversitySuitaOsaka 565-0871Japan LULI e CNRs Ecole PolytechniqueCEA:Universite Paris-SaclayUPMC Univ Paris 06:Sorbonne Universites-F-91128 Palaiseau cedexFrance Helmholtz-Zentrum Dresden-Rossendorf Dresden 01328Germany Japan synchrotron Radiation Research Institute Sayo-choSayo-gunHyogo 679-5198Japan RIKEN spring-8 Center Sayo-choSayo-gunHyogo 679-5148Japan skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State UniversityMoscow 119991Russia Universite de Bordeaux-CNRs-CEA CELIA(Center Lasers Intenses et Applications)UMR 5107F-33405 TalenceFrance National Research Nuclear University MEPhI Moscow 115409Russia ELI-NP/IFN-HH Maqurele-Bucharest 077125 Romania ILE Osaka UniversitySuitaOsaka 565-0871Japan

We present new diagnostics for use in optical laser pump-X-ray Free Electron Laser(XFEL)probe experiments to monitor dimensions,intensity profile and focusability of the XFEL beam and to control initial quality and homogeneity of targets to be driven by optical laser *** developing X-ray imaging,based on the use of an LiF crystal detector,we were able to measure the distribution of energy inside a hard X-ray beam with unprecedented high spatial resolution(~1 mm)and across a field of view larger than some *** diagnostic can be used in situ,provides a very high dynamic range,has an extremely limited cost,and is relatively easy to be implemented in pump-probe *** proposed methods were successfully applied in pump-probe experiments at the sPring-8 Angstrom Compact free electron LAser(sACLA)XFEL facility and its potential was demonstrated for current and future High Energy Density science experiments.

关键词： XFEL shock waves Pump-probe experiments High energy density science X-ray spectroscopy X-ray imaging

Highly-collimated, high-charge and broadband MeV electron beams produced by magnetizing solids irradiated by high-intensity lasers

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Matter and Radiation at Extremes 2019年第4期4卷 1-8页

作者： s.Bolaños J.Beard G.Revet s.N.Chen s.pikuz E.Filippov M.safronova M.Cerchez O.Willi M.starodubtsev J.Fuchs LULI—CNRs Ecole PolytechniqueCEA:Universite Paris-SaclayUPMC Univ Paris 06:Sorbonne UniversitesF-91128 Palaiseau CedexFrance LNCMI UPR 3228CNRS-UGA-UPS-INSA31400 ToulouseFrance Institute of Applied Physics 46 Ulyanov Street603950 Nizhny NovgorodRussian Federation ELI-NP “Horia Hulubei”National Institute for Physics and Nuclear Engineering30 Reactorului StreetRO-077125 Bucharest-MagureleRomania Joint Institute for High Temperatures RAS125412 MoscowRussian Federation National Research Nuclear University MEPhI 115409 MoscowRussian Federation Institute for Laser and Plasma Physics University of DusseldorfDusseldorfGermany

Laser irradiation of solid targets can drive short and high-charge relativistic electron bunches over micron-scale acceleration ***,for a long time,this technique was not considered a viable means of electron acceleration due to the large intrinsic divergence(∼50°half-angle)of the ***,a reduction in this divergence to 10°–20°half-angle has been obtained,using plasma-based magnetic fields or very high contrast laser pulses to extract the electrons into the *** we show that we can further improve the electron beam collimation,down to∼1.5°half-angle,of a high-charge(6 nC)beam,and in a highly reproducible manner,while using standard stand-alone 100 TW-class laser *** is obtained by embedding the laser-target interaction in an external,large-scale(cm),homogeneous,extremely stable,and high-strength(20 T)magnetic field that is independent of the *** upcoming multi-PW,high repetition-rate lasers,this technique opens the door to achieving even higher charges(>100 nC).

关键词： charge high acceleration

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

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High Power Laser science and Engineering 2019年第3期7卷 142-155页

作者： G.Cristoforetti L.Antonelli D.Mancelli s.Atzeni F.Baffigi F.Barbato D.Batani G.Boutoux F.D'Amato J.Dostal R.Dudzak E.Filippov Y.J.Gu L.Juha O.Klimo M.Krus s.Malko A.s.Martynenko Ph.Nicolai V.Ospina s.pikuz O.Renner J.santos V.T.Tikhonchuk J.Trela s.Viciani L.Volpe s.Weber L.A.Gizzi National Institute of Optics CNRPisa and FlorenceItaly York Plasma Physics Institute University of YorkHe slingtonYorkUK Universite de Bordeaux CNRSCEACELIATalenceFrance Donostia International Physics Center(DiPC) Donostia/San SebastianBasque CountrySpain Dipartimento sBAI Universita di Roma La SapienzaRomaItaly National Research Nuclear University MEPhl MoscowRussia CEA DAMDIFArpajonFrance Department of Radiation and Chemical Physics Institute of Physics of the CASPragueCzech Republic Laser Plasma Department Institute of Plasma Physics of the CASPragueCzech Republic Joint Institute for High Temperature RAs MoscowRussia ELI-Beamlines Institute of Physics of the CASPragueCzech Republic FNsPE Czech Technical University in PraguePragueCzech Republic Universidad de salamanca Ctr Laseres PulsadosSalamancaSpain Centro de Laseres Pulsados(CLPU) VillamayorSalamancaSpain

Laser–plasma interaction(LPI)at intensities 1015–1016 W·cm^-2 is dominated by parametric instabilities which can be responsible for a significant amount of non-collisional absorption and generate large fluxes of high-energy nonthermal *** a regime is of paramount importance for inertial confinement fusion(ICF)and in particular for the shock ignition *** this paper we report on an experiment carried out at the Prague Asterix Laser system(PALs)facility to investigate the extent and time history of stimulated Raman scattering(sRs)and two-plasmon decay(TPD)instabilities,driven by the interaction of an infrared laser pulse at an intensity^1.2×1016 W·cm^-2 with a^100μm scalelength plasma produced from irradiation of a flat plastic *** laser pulse duration(300 ps)and the high value of plasma temperature(~4 ke V)expected from hydrodynamic simulations make these results interesting for a deeper understanding of LPI in shock ignition *** results show that absolute TPD/sRs,driven at a quarter of the critical density,and convective sRs,driven at lower plasma densities,are well separated in time,with absolute instabilities driven at early times of interaction and convective backward sRs emerging at the laser peak and persisting all over the tail of the ***-scattering sRs,driven at low plasma densities,is also clearly *** results are compared to fully kinetic large-scale,two-dimensional ***-in-cell results,beyond reproducing the framework delineated by the experimental measurements,reveal the importance of filamentation instability in ruling the onset of sRs and stimulated Brillouin scattering instabilities and confirm the crucial role of collisionless absorption in the LPI energy balance.

关键词： plasma simulations shock ignition stimulated Raman scattering two-plasmon decay

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Characterization and performance of the Apollon short-focal-area facility following its commissioning at 1 PW level

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Matter and Radiation at Extremes 2021年第6期6卷 12-25页

作者： K.Burdonov A.Fazzini V.Lelasseux J.Albrecht P.Antici Y.Ayoul A.Beluze D.Cavanna T.Ceccotti M.Chabanis A.Chaleil s.N.Chen Z.Chen F.Consoli M.Cuciuc X.Davoine J.P.Delaneau E.d’Humieres J.-L.Dubois C.Evrard E.Filippov A.Freneaux P.Forestier-Colleoni L.Gremillet V.Horny L.Lancia L.Lecherbourg N.Lebas A.Leblanc W.Ma L.Martin F.Negoita J.-L.Paillard D.Papadopoulos F.Perez s.pikuz G.Qi F.Quere L.Ranc P.-A.soderstrom M.sciscio s.sun s.Vallieres P.Wang W.Yao F.Mathieu P.Audebert J.Fuchs LULI–CNRs CEASorbonne UniversiteEcole PolytechniqueInstitut Polytechnique de ParisF-91128 Palaiseau CedexFrance sorbonne Universite Observatoire de ParisUniversite PSLCNRSLERMAF-75005 ParisFrance IAP Russian Academy of Sciences603155 Nizhny NovgorodRussia INRs-EMT 1650Boulevard Lionel-BouletVarennesQuebec J3X 1S2Canada Universite Paris-saclay CEACNRSLIDYL91191Gif-sur-YvetteFrance Universite Paris-saclay CEALMCE91680 Bruy`eres-le-ChˆatelFrance “Horia Hulubei”National Institute for Physics and Nuclear Engineering 30 Reactorului StreetRO-077125 Bucharest-MagureleRomania ENEA Fusion and Technologies for Nuclear Safety DepartmentC.R.FrascatiVia E.Fermi 4500044 FrascatiItaly University of Bordeaux Centre Lasers Intenses et ApplicationsCNRSCEAUMR 5107F-33405 TalenceFrance Joint Institute for High Temperatures RAS125412 MoscowRussia Laboratoire d’Optique Appliquee Ecole Polytechnique–ENSTA–CNRS–Institut Polytechnique de ParisPalaiseauFrance state Key Laboratory of Nuclear Physics and Technology School of PhysicsCAPTPeking UniversityBeijing 100871China Laboratoire Charles Fabry Institut d’Optique Graduate SchoolCNRSUniversite Paris-Saclay91127 Palaiseau CedexFrance

We present the results of the first commissioning phase of the short-focal-length area of the Apollon laser facility(located in saclay,France),which was performed with the first available laser beam(F2),scaled to a nominal power of 1 *** the conditions that were tested,this beam delivered on-target pulses of 10 J average energy and 24 fs *** diagnostics were fielded to assess the performance of the *** on-target focal spot and its spatial stability,the temporal intensity profile prior to the main pulse,and the resulting density gradient formed at the irradiated side of solid targets have been thoroughly characterized,with the goal of helping users design future *** of energetic electrons,ions,and electromagnetic radiation were recorded,showing good laser-to-target coupling efficiency and an overall performance comparable to that of similar international *** will be followed in 2022 by a further commissioning stage at the multipetawatt level.

关键词： performance beam nominal

Metrology for sub-Rayleigh-length target positioning in ～1022W/cm2 laser-plasma experiments

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High Power Laser science and Engineering 2024年第3期 95-110页

作者： E.A.Vishnyakov A.sagisaka K.Ogura T.Zh.Esirkepov B.Gonzalez-Izquierdo C.D.Armstrong T.A.pikuz s.A.pikuz W.Yan T.M.Jeong s.singh P.Hadjisolomou O.Finke G.M.Grittani M.Nevrkla C.M.Lazzarini A.Velyhan T.Hayakawa Y.Fukuda J.K.Koga M.Ishino K.Kondo Y.Miyasaka A.Kon M.Nishikino Y.V.Nosach D.Khikhlukha I.P.Tsygvintsev D.Kumar J.Nejdl D.Margarone P.V.sasorov s.Weber M.Kando H.Kiriyama Y.Kato,G.Korn K.Kondo s.V.Bulanov T.Kawachi A.s.Pirozhkov ELI Beamlines Facility The Extreme Light Infrastructure ERIC Kansai Institute for Photon science (KPsI) Central Laser Facility Rutherford Appleton LaboratorySTFC Institute for Open and Transdisciplinary Research Initiatives Osaka University HB11 Energy Holdings Key Laboratory for Laser Plasmas (Ministry of Education) School of Physics and AstronomyShanghai Jiao Tong University Collaborative Innovation Center of IFsA Shanghai Jiao Tong University Institute of Plasma Physics AsCR FZU±Institute of Physics AsCR Czech Technical University in Prague Institute of Laser Engineering Osaka University Institute of Physics National Academy of Sciences of Ukraine IsTEQ AR

Tight focusing with very small f-numbers is necessary to achieve the highest at-focus ***,tight focusing imposes strong demands on precise target positioning in-focus to achieve the highest on-target irradiance We describe several near-infrared,visible,ultraviolet and soft and hard X-ray diagnostics employed in a～1022W/cm2laser±plasma *** used nearly 10 J total energy femtosecond laser pulses focused into an approximately1.3-μm focal spot on 5±20μm thick stainless-steel *** discuss the applicability of these diagnostics to determine the best in-focus target position with approximately 5μm accuracy （i.e.,around half of the short Rayleigh length）and show that several diagnostics （in particular,3ωreflection and on-axis hard X-rays） can ensure this *** demonstrated target positioning within several micrometers from the focus,ensuring over 80%of the ideal peak laser intensity *** approach is relatively fast （it requires 10±20 laser shots） and does not rely on the coincidence of low-power and high-power focal planes.

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