%0 Journal Article
%A Reichwein, L.
%A Hützen, A.
%A Büscher, M.
%A Pukhov, A.
%T On the robustness of spin polarization for magnetic vortex accelerated proton bunches in density down-ramps
%J Plasma physics and controlled fusion
%V 63
%N 8
%@ 0032-1028
%C Bristol
%I IOP Publ.
%M FZJ-2021-04596
%P 085011 -
%D 2021
%X We investigate the effect of density down-ramps on the acceleration of ions via magnetic vortex acceleration in a near-critical density gas target by means of particle-in-cell simulations. The spin-polarization of the accelerated protons is robust for a variety of ramp lengths at around 80%. Significant increase of the ramp length is accompanied by collimation of low-polarization protons into the final beam and large transverse spread of the highly polarized protons with respect to the direction of laser propagation.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000667469400001
%R 10.1088/1361-6587/ac0614
%U https://juser.fz-juelich.de/record/902839