7–10 Sept 2016
Laboratori Nazionali del Sud of INFN
Europe/Rome timezone

Spatial profile modulation of a proton beam generated by laser interacting with micro-structured targets

9 Sept 2016, 11:50
20m
Conference Hall (Laboratori Nazionali del Sud of INFN)

Conference Hall

Laboratori Nazionali del Sud of INFN

Via S. Sofia 62, 95123 Catania Italy

Speaker

Dr Lorenzo Giuffrida (ELI beamlines)

Description

The interaction of the laser system at LLC (Lund Laser Centre, 40 TW, 1020 W/cm2, 109 ns-contrast) with nano and micro structured thin (micrometer-scale) targets was systematically studied to control and to improve the main proton beam parameters. Mylar foils covered with nano-spheres on their rear side (with respect to the laser-target absorption surface) allowed to modulate the spatial profile of the accelerated proton beams. Moreover the presence of the nano-spheres allowed to improve the proton beam spatial homogeneity. Grating targets with different step dimensions influenced the divergence of the proton beam and drastically changed its shape through a sort of stretching effect. Experimental results will be here shown and discussed with the support of 2D and 3D particle-in-cell simulations.

Primary author

Dr Lorenzo Giuffrida (ELI beamlines)

Co-authors

Dr Alvise Bagolini (Micro-Nano Facility, Fondazione Bruno Kessler, Trento, Italy) Dr Anders Persson (Department of Physics, Lund University, P.O. Box 118, S-2\1 00 Lund, Sweden) Dr Antonino Picciotto (Micro-Nano Facility, Fondazione Bruno Kessler, Trento, Italy) Dr Arkady Gonoskov (Department of Physics, Chalmers University of Technology, 41296 Gothenburg, Sweden) Prof. Claes-Göran Wahlström (Department of Physics, Lund University, P.O. Box 118, S-2\1 00 Lund, Sweden) Dr Daniele Margarone (Institute of Physics ASCR, v.v.i (FZU), ELI-Beamlines project, Prague, Czech Republic) Dr Georg Korn (Institute of Physics ASCR, v.v.i (FZU), ELI-Beamlines project, Prague, Czech Republic) Giuliana Giuseppina Milluzzo (LNS) Giuseppe Cirrone (LNS) Dr Henrik Ekerfelt (Department of Physics, Lund University, P.O. Box 118, S-2\1 00 Lund, Sweden) Dr Isabel Gallardo Gonzalez (Department of Physics, Lund University, P.O. Box 118, S-2\1 00 Lund, Sweden) Dr Jan Kaufman (Institute of Physics ASCR, v.v.i (FZU), ELI-Beamlines project, Prague, Czech Republic) Dr Jan Psikal (Institute of Physics ASCR, v.v.i (FZU), ELI-Beamlines project, Prague, Czech Republic) Dr Joel Magnusson (Department of Physics, Chalmers University of Technology, 41296 Gothenburg, Sweden) Dr Kristoffer Svenson (Department of Physics, Lund University, P.O. Box 118, S-2\1 00 Lund, Sweden) Dr Malay Dalui (Department of Physics, Lund University, P.O. Box 118, S-2\1 00 Lund, Sweden) Dr Marzio Di Napoli (Laboratory Nazionali del Sud, INFN, Catania, Italy) Dr Michele Crivellari (Micro-Nano Facility, Fondazione Bruno Kessler, Trento, Italy) Dr Olle Lundh (Department of Physics, Lund University, P.O. Box 118, S-2\1 00 Lund, Sweden) Dr Piotr Lutoslawski (Institute of Physics ASCR, v.v.i (FZU), ELI-Beamlines project, Prague, Czech Republic) Dr Tomas Lastivicka (Institute of Physics ASCR, v.v.i (FZU), ELI-Beamlines project, Prague, Czech Republic) Dr Tuomas Wiste (Institute of Physics ASCR, v.v.i (FZU), ELI-Beamlines project, Prague, Czech Republic) Dr Valentina Scuderi (LNS)

Presentation materials