Magnetically Guided Fast Electrons in Cylindrically Compressed Matter
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J. Honrubia
- Function : Author
S. D. Baton
- Function : Author
- PersonId : 178234
- IdHAL : sophie-baton
- ORCID : 0000-0003-2604-5699
F. N. Beg
- Function : Author
C. Benedetti
- Function : Author
F. Dorchies
- Function : Author
- PersonId : 14618
- IdHAL : fabien-dorchies
- ORCID : 0000-0002-5922-9585
- IdRef : 142940887
D. P. Higginson
- Function : Author
P. Koester
- Function : Author
K. L. Lancaster
- Function : Author
A. J. Mackinnon
- Function : Author
A. G. Macphee
- Function : Author
J. Pasley
- Function : Author
R. Ramis
- Function : Author
M. Richetta
- Function : Author
C. Spindloe
- Function : Author
- PersonId : 771084
- ORCID : 0000-0002-6648-7400
T. Vinci
- Function : Author
- PersonId : 759878
- ORCID : 0000-0002-1595-1752
L. Volpe
- Function : Author
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(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.