| 1 | Shock dynamics and shock collision in foam layered targets显示文摘We present an experimental study of the dynamics of shocks generated by the interaction of a double-spot laser in different kinds of targets:simple aluminum foils and foam-aluminum layered targets.The experiment was performed using the Prague PALS iodine laser working at 0.44μm wavelength and irradiance of a few 10^(15)W/cm^(2).Shock breakouts for pure Al and for foam-Al targets have been recorded using time-resolved self-emission diagnostics.Experimental results have been compared with numerical simulations.The shocks originating from two spots move forward and expand radially in the targets,finally colliding in the intermediate region and producing a very strong increase in pressure.This is particularly clear for the case of foam layered targets,where we also observed a delay of shock breakout and a spatial redistribution of the pressure.The influence of the foam layer doped with high-Z(Au)nanoparticles on the shock dynamics was also studied. | K.Batani A.Aliverdiev R.Benocci R.Dezulian A.Amirova E.Krousky M.Pfeifer J.Skala R.Dudzak W.Nazarov D.Batani | 2021 | High Power Laser Science and Engineering2021，9，3： | 0 |
| 2 | Generation of high-energy neutrons with the 300-ps-laser system PALS显示文摘The laser system PALS,as a driver of a broad-beam ion source,delivered deuterons which generated neutrons with energies higher than 14 Me V through the 7Li(d,n)8 Be reaction.Deuterons with sub-Me V energy were accelerated from the front surface of a massive CD2 target in the backward direction with respect to the laser beam vector.Simultaneously,neutrons were emitted from the primary CD2 target and a secondary Li F catcher.The total maximum measured neutron yield from 2D(d,n)3He,7Li(d,n)8Be,12C(d,n)13N reactions was ~3.5(±0.5) × 108 neutrons/shot. | J.Krsa D.Klír A.Velyhan E.Krousky M.Pfeifer K.Rez J.Cikhardt K.Turek J.Ullschmied K.Jungwirth | 2014 | High Power Laser Science and Engineering2014，2，3： | 0 |
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