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| 1 | A 2D scintillator-based proton detector for high repetition rate experiments显示文摘We present a scintillator-based detector able to measure the proton energy and the spatial distribution with a relatively simple design.It has been designed and built at the Spanish Center for Pulsed Lasers(CLPU)in Salamanca and tested in the proton accelerator at the Centro de Micro-Análisis de Materiales(CMAM)in Madrid.The detector is capable of being set in the high repetition rate(HRR)mode and reproduces the performance of the radiochromic film detector.It represents a new class of online detectors for laser-plasma physics experiments in the newly emerging high power laser laboratories working at HRR. | M.Huault D.De Luis J.I.Apinaniz M.De Marco C.Salgado N.Gordillo C.Gutierrez Neira J.A.Perez-Hemandez R.Fedosejevs G.Gatti L.Roso L.Volpe | 2019 | High Power Laser Science and Engineering2019，7，4： | 2 |
| 2 | An evaluation of sustainability and societal impact of high-power laser and fusion technologies:a case for a new European research infrastructure显示文摘Fusion energy research is delivering impressive new results emerging from different infrastructures and industrial devices evolving rapidly from ideas to proof-of-principle demonstration and aiming at the conceptual design of reactors for the production of electricity.A major milestone has recently been announced in laser fusion by the Lawrence Livermore National Laboratory and is giving new thrust to laser-fusion energy research worldwide.Here we discuss how these circumstances strongly suggest the need for a European intermediate-energy facility dedicated to the physics and technology of laser-fusion ignition,the physics of fusion materials and advanced technologies for high-repetitionrate,high-average-power broadband lasers.We believe that the participation of the broader scientific community and the increased engagement of industry,in partnership with research and academic institutions,make most timely the construction of this infrastructure of extreme scientific attractiveness. | S.Atzeni D.Batani C.N.Danson L.A.Gizzi M.Perlado M.Tatarakis V.Tikhonchuk L.Volpe | 2021 | High Power Laser Science and Engineering2021，9，4： | 1 |
| 3 | Generation of high energy laser-driven electron and proton sources with the 200 TW system VEGA 2 at the Centro de Laseres Pulsados显示文摘The Centro de Laseres Pulsados in Salamanca,Spain has recently started operation phase and the first user access period on the 6 J 30 fs 200 TW system(VEGA 2)already started at the beginning of 2018.In this paper we report on two commissioning experiments recently performed on the VEGA 2 system in preparation for the user campaign.VEGA 2 system has been tested in different configurations depending on the focusing optics and targets used.One configuration(long focal length F=130 cm)is for underdense laser-matter interaction where VEGA 2 is focused onto a low density gas-jet generating electron beams(via laser wake field acceleration mechanism)with maximum energy up to 500 MeV and an X-ray betatron source with a 10 keV critical energy.A second configuration(short focal length F= 40 cm)is for overdense laser-matter interaction where VEGA 2 is focused onto a 5 μm thick Al target generating a proton beam with a maximum energy of 10 MeV and temperature of 2.5 MeV.In this paper we present preliminary experimental results. | L.Volpe R.Fedosejevs G.Gatti J.A.Pérez-Hernández C.Méndez J.Apinaniz X.Vaisseau C.Salgado M.Huault S.Malko G.Zeraouli V.Ospina A.Longman D.De Luis K.Li O.Varela E.García I.Hernandez J.D.Pisonero J.Garcia Ajates J.M.Alvarez C.García M.Rico D.Arana J.Hernandez-Toro L.Roso | 2019 | High Power Laser Science and Engineering2019，7，2： | 0 |
| 4 | Time evolution of stimulated Raman scattering and two-plasmon decay at laser intensities relevant for shock ignition in a hot plasma显示文摘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 electrons.Such a regime is of paramount importance for inertial confinement fusion(ICF)and in particular for the shock ignition scheme.In 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 target.The 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 conditions.Experimental 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 pulse.Side-scattering SRS,driven at low plasma densities,is also clearly observed.Experimental results are compared to fully kinetic large-scale,two-dimensional simulations.Particle-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. | 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 | 2019 | High Power Laser Science and Engineering2019，7，3： | 0 |
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