| Literature DB >> 21902333 |
F Pérez1, A Debayle, J Honrubia, M Koenig, D Batani, S D Baton, F N Beg, C Benedetti, E Brambrink, S Chawla, F Dorchies, C Fourment, M Galimberti, L A Gizzi, L Gremillet, R Heathcote, D P Higginson, S Hulin, R Jafer, P Koester, L Labate, K L Lancaster, A J MacKinnon, A G MacPhee, W Nazarov, P Nicolai, J Pasley, R Ramis, M Richetta, J J Santos, A Sgattoni, C Spindloe, B Vauzour, T Vinci, L Volpe.
Abstract
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(α)-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.Year: 2011 PMID： 21902333 DOI： 10.1103/PhysRevLett.107.065004
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161