Magnetically Guided Fast Electrons in Cylindrically Compressed Matter

作者：Perez F^*; Debayle A; Honrubia J; Koenig M; Batani D; Baton S D; Beg F N; Benedetti C; Brambrink E; Chawla S; Dorchies F; Fourment C; Galimberti M; Gizzi L A; Gremillet L; Heathcote R; Higginson D P; Hulin S; Jafer R; Koester P; Labate L; Lancaster K L; MacKinnon A J; MacPhee A G; Nazarov W; Nicolai P; Pasley J; Ramis R; Richetta M; Santos J J; Sgattoni A; Spindloe C; Vauzour B; Vinci T; Volpe L

来源：Physical Review Letters, 2011, 107(6): 065004.

DOI：10.1103/PhysRevLett.107.065004

Fast electrons produced by a 10 ps, 160 J laser pulse through laser-compressed plastic cylinders are studied experimentally and numerically in the context of fast ignition. K(alpha)-emission images reveal a collimated or scattered electron beam depending on the initial density and the compression timing. A numerical transport model shows that implosion-driven electrical resistivity gradients induce strong magnetic fields able to guide the electrons. The good agreement with measured beam sizes provides the first experimental evidence for fast-electron magnetic collimation in laser-compressed matter.

• 出版日期2011-8-4
• 单位中国地震局