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Proton Acceleration Driven by a Nanosecond Laser from a Cryogenic Thin Solid-Hydrogen Ribbon

D.Margarone1, A.Velyhan1, J.Dostal2, J.Ullschmied2, J.P.Perin3, D.Chatain3, S.Garcia3, P.Bonnay3, T.Pisarczyk4, R.Dudzak2, M.Rosinski4, J.Krasa1, L.Giuffrida1, J.Prokupek2, V.Scuderi1,6, J.Psikal1,5, M.Kucharik5, M.De Marco1, J.Cikhardt2,5, E.Krousky2, Z.Kalinowska4, T.Chodukowski4, G.A.P.Cirrone6 & G.Korn1

Physical Review X 6 (2016) 041030, doi: 10.1103/PhysRevX.6.041030

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. 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). Both the H plasma and the accelerated proton beam are fully characterized by in situ and ex situ diagnostics.

Recorded raw interferometry snapshots corresponding plasma density maps.

1Institute of Physics ASCR, FZU, ELI-Beamlines project, Prague 182 00, Czech Republic
2Institute of Plasma Physics ASCR, PALS Laboratory, Prague 182 00, Czech Republic
3CEA INAC-SBT, Grenoble 38000, France
4Institute of Plasma Physics and Laser Microfusion, Warsaw 01-497, Poland
5FNSPE/FEE, Czech Technical University, Prague 166 36, Czech Republic
6Laboratori Nazionali del Sud, INFN, Catania 95125, Italy