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您的检索式：作者名="J.R.Marques"
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| 1 | Self-modulation and anomalous collective scattering of laser produced intense ion beam in plasmas显示文摘The collective interaction between intense ion beams and plasmas is studied by simulations and experiments,where an intense proton beam produced by a short pulse laser is injected into a pre-ionized gas.It is found that,depending on its current density,collective effects can significantly alter the propagated ion beam and the stopping power.The quantitative agreement that is found between theories and experiments constitutes the first validation of the collective interaction theory.The effects in the interaction between intense ion beams and background gas plasmas are of importance for the design of laser fusion reactors as well as for beam physics. | K.Mima J.Fuchs T.Taguchi J.Alvarez J.R.Marques S.N.Chen T.Tajima J.M.Perlado | 2018 | Matter and Radiation at Extremes2018，3，3： | 0 |
| 2 | Triggering star formation:Experimental compression of a foam ball induced by Taylor–Sedov blast waves显示文摘The interaction between a molecular cloud and an external agent(e.g.,a supernova remnant,plasma jet,radiation,or another cloud)is a common phenomenon throughout the Universe and can significantly change the star formation rate within a galaxy.This process leads to fragmentation of the cloud and to its subsequent compression and can,eventually,initiate the gravitational collapse of a stable molecular cloud.It is,however,difficult to study such systems in detail using conventional techniques(numerical simulations and astronomical observations),since complex interactions of flows occur.In this paper,we experimentally investigate the compression of a foam ball by Taylor–Sedov blast waves,as an analog of supernova remnants interacting with a molecular cloud.The formation of a compression wave is observed in the foam ball,indicating the importance of such experiments for understanding how star formation is triggered by external agents. | B.Albertazzi P.Mabey Th.Michel G.Rigon, J.R.Marques S.Pikuz S.Ryazantsev E.Falize L.Van Box Som J.Meinecke N.Ozaki G.Gregori M.Koenig | 2022 | Matter and Radiation at Extremes2022，7，3： | 0 |
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