Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf
2 PublicationsExperimental observation of transverse modulations in laser-driven proton beams
Metzkes, J.; Kluge, T.; Zeil, K.; Bussmann, M.; Kraft, S. D.; Cowan, T. E.; Schramm, U.
Abstract
We report on the experimental observation of transverse modulations in proton beams accelerated from micrometer thick targets which were irradiated with ultra-short (30 fs) laser pulses of a peak intensity of 5·10^20 W/cm^2. The net-like proton beam modulations were recorded using radiochromic film and the data suggest a dependence on laser energy and target thickness for their onset and strength. Numerical simulations suggest that intensity-dependent instabilities in the laser-produced plasma at the target front side lead to electron beam break-up or filamentation, then serving as the source of the observed proton beam modulations.
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New Journal of Physics 16(2014), 023008-1-023008-12
DOI: 10.1088/1367-2630/16/2/023008
Cited 30 times in Scopus -
Poster
41st EPS Conference on Plasma Physics, 23.-27.06.2014, Berlin, Deutschland
Permalink: https://www.hzdr.de/publications/Publ-19809