First demonstration of multi-MeV proton acceleration from a cryogenic hydrogen ribbon target. (5th March 2018)

• Record Type: Journal Article
• Authors: Kraft, Stephan D; Obst, Lieselotte; Metzkes-Ng, Josefine; Schlenvoigt, Hans-Peter; Zeil, Karl; Michaux, Sylvain; Chatain, Denis; Perin, Jean-Paul; Chen, Sophia N; Fuchs, Julien; Gauthier, Maxence; Cowan, Thomas E; Schramm, Ulrich
• Is Part Of: Plasma physics and controlled fusion. Volume 60:Number 4(2018:Apr.)
• Publication Date: 2018-03-05
• Subjects: laser ion acceleration -- cryogenic hydrogen -- target normal sheath acceleration; Plasma (Ionized gases) -- Periodicals; Controlled fusion -- Periodicals; 530.44
• DOI: 10.1088/1361-6587/aaae38
• Languages: English
• ISSNs: 0741-3335

Abstract

Abstract: We show efficient laser driven proton acceleration up to 14 MeV from a 62 μ m thick cryogenic hydrogen ribbon. Pulses of the short pulse laser ELFIE at LULI with a pulse length of ≈350 fs at an energy of 8 J per pulse are directed onto the target. The results are compared to proton spectra from metal and plastic foils with different thicknesses and show a similarly good performance both in maximum energy as well as in proton number. Thus, this target type is a promising candidate for experiments with high repetition rate laser systems.