Berlin 2005 – scientific programme
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SYLP: Relativistische Laser-Plasma-Physik
SYLP 2: Relativistische Laser-Plasma-Physik 2
SYLP 2.4: Talk
Saturday, March 5, 2005, 15:40–16:00, HU Senatssaal
Electric field measurements in dense plasmas using proton imaging — •Toma Toncian1, P. Antici2, P. Audebert2, M. Borghesi 3, C. A. Cecchetti3, J. Fuchs2, G. Pretzler1, L. Romagnani 3, and O. Willi1 — 1Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1 40225 Düsseldorf, Germany — 2Laboratoire pour l’Utilisation des Lasers Intenses (LULI), Ecole Polytechnique, Palaiseau cedex , France — 3Queens University, Belfast, United Kingdom
Proton imaging is a powerful technique to investigate electric fields in dense laser produced plasmas. During the interaction of a intense laser pulse 1019 W/cm2 with thin metal foil targets a multi MeV proton beam is generated. This diagnostic has been applied to study the rear side proton acceleration process of laser irradiated targets. The experimental results have been compared to the theoretical model of plasma expansion in vacuum. Good agreement has been found.