Details

Autor(en) / Beteiligte

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

Titel

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

Ist Teil von

• Physical review. X, 2016-11, Vol.6 (4), p.041030, Article 041030

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2016

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• 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 ∼0.1mC 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 (∼10K ) and a very hot H plasma (∼300keV “hot electron” temperature) generated by a subnanosecond laser with an intensity of ∼3×1016W/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.