%0 Journal Article
%A Engin, Ilhan
%A Chitgar, Zahra
%A Deppert, Oliver
%A Di Lucchio, Laura
%A Engels, Ralf W.
%A Fedorets, Pavel
%A Frydrych, Simon
%A Gibbon, Paul
%A Kleinschmidt, Annika
%A Lehrach, Andreas
%A Maier, Rudolf
%A Prasuhn, Dieter
%A Roth, Markus
%A Schlüter, Friederike
%A Schneider, Claus M
%A Stöhlker, Thomas
%A Strathmann, Katharina
%A Büscher, Markus
%T Laser-induced acceleration of Helium ions from unpolarized gas jets
%J Plasma physics and controlled fusion
%V 61
%N 11
%@ 1361-6587
%C Bristol
%I IOP Publ.
%M FZJ-2019-05598
%P 115012
%D 2019
%X In order to develop a laser-driven spin-polarized 3He-ion beam source available for nuclear-physics experiments as well as for the investigation of polarized nuclear fusion, several challenges have to be overcome. Apart from the provision of a properly polarized 3He gas-jet target, one of the biggest milestones is the demonstration of the general feasibility of laser-induced ion acceleration out of gas-jet targets. Of particular importance is the knowledge about the main ion-emission angles as well as the achievable ion-energy spectra (dependent on the optimal set of laser and target parameters). We report on the results of such a feasibility study performed at PHELIX, GSI Darmstadt. Both 3He- and 4He-gas jets (n_gas ∼ 10^19 cm−3) were illuminated with high-intensity laser pulses, I_L ~ O(10^19 W cm^-2). The main ion-emission angles could be identified (±90° with respect to the laser-propagation direction) and the ion-energy spectra for all ion species could be extracted: for the optimal laser and target parameters, the high-energy cut-offs for He^2+,1+ ions were 4.65 MeV (with a normalized energy uncertainty of Delta E E^-1 = 0.033) and 3.27 MeV (Delta E E^-1 = 0.055), respectively.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000503032400007
%R 10.1088/1361-6587/ab4613
%U https://juser.fz-juelich.de/record/866497