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@ARTICLE{Beg:37782,
author = {Beg, F. N. and Wei, M. S. and Clark, E. L. and Dangor, A.
E. and Evans, R. G. and Gibbon, P. and Gopal, A. and
Lancaster, K. L. and Ledingham, K. W. D. and McKenna, P. and
Norreys, D. A. and Tatarakis, M. and Zepf, M. and
Krushelnick, K.},
title = {{R}eturn current and proton emission from short pulse laser
interactions with wire targets},
journal = {Physics of plasmas},
volume = {11},
issn = {1070-664X},
address = {[S.l.]},
publisher = {American Institute of Physics},
reportid = {PreJuSER-37782},
pages = {2806 - 2813},
year = {2004},
note = {Record converted from VDB: 12.11.2012},
abstract = {Results are presented from laser-plasma interaction
experiments using the VULCAN laser at the Rutherford
Appleton Laboratory. Wire targets were used to elucidate the
role of the return currents generated by the relativistic
electron beam leaving the target at laser intensities up to
5x10(19) W cm(-2). For some shots an additional wire or a
foil was placed near the target wire. In other shots, a foil
was used as the target with a wire behind. Three main
observations were made: (i) Z-pinch behavior in the wires
due to the return currents, (ii) optical transition
radiation (OTR) at the second harmonic of the laser, and
(iii) proton emission. The OTR and the proton emission were
observed from both the primary wire target and the adjacent
wire. The OTR emission is associated with electron bunches
at twice the laser frequency due to ponderomotive JxB
acceleration by the laser. The proton emission from the
adjacent target was likely due to field emission of
electrons by the large potential produced from charging of
the primary wire target. The observations agree with
simulations using the three-dimensional tree code PEPC and
the two-and-one-half-dimensional particle-in-cell code
OSIRIS. (C) 2004 American Institute of Physics.},
keywords = {J (WoSType)},
cin = {ZAM},
ddc = {530},
cid = {I:(DE-Juel1)VDB62},
pnm = {Betrieb und Weiterentwicklung des Höchstleistungsrechners},
pid = {G:(DE-Juel1)FUEK254},
shelfmark = {Physics, Fluids $\&$ Plasmas},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000221122600127},
doi = {10.1063/1.1704643},
url = {https://juser.fz-juelich.de/record/37782},
}