Proton acceleration driven by a nanosecond laser from a cryogenic thin solid-hydrogen ribbon

D. Margarone*, A. Velyhan, J. Dostal, J. Ullschmied, J. P. Perin, D. Chatain, S. Garcia, P. Bonnay, T. Pisarczyk, R. Dudzak, M. Rosinski, J. Krasa, L. Giuffrida, J. Prokupek, V. Scuderi, J. Psikal, M. Kucharik, M. De Marco, J. Cikhardt, E. KrouskyZ. Kalinowska, T. Chodukowski, G. A.P. Cirrone, G. Korn

*Corresponding author for this work

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37 Citations (Scopus)
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Abstract

A high-power pulsed laser is focused onto a solid-hydrogen target to accelerate forward a collimated stream of protons in the range 0.1-1 MeV, carrying a very high energy of about 30 J (~5% laser-ion conversion efficiency) and extremely large charge of about ~0.1 mC per laser pulse. This result is achieved for the first time through the combination of a sophisticated target system (H2 thin ribbon) operating at cryogenic temperature (~10 K) and a very hot H plasma (~300 keV "hot electron" temperature) generated by a subnanosecond laser with an intensity of ~3 × 1016 W/cm2. Both the H plasma and the accelerated proton beam are fully characterized by in situ and ex situ diagnostics. Results obtained using the ELISE (experiments on laser interaction with solid hydrogen) H2 target delivery system at PALS (Prague) kJ-class laser facility are presented and discussed along with potential multidisciplinary applications.

Original languageEnglish
Article number041030
JournalPhysical review x
Volume6
Issue number4
DOIs
Publication statusPublished - 08 Nov 2016
Externally publishedYes

Keywords

  • Plasma physics

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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