TY  - JOUR
AU  - Reichwein, L.
AU  - Hützen, A.
AU  - Büscher, M.
AU  - Pukhov, A.
TI  - On the robustness of spin polarization for magnetic vortex accelerated proton bunches in density down-ramps
JO  - Plasma physics and controlled fusion
VL  - 63
IS  - 8
SN  - 0032-1028
CY  - Bristol
PB  - IOP Publ.
M1  - FZJ-2021-04596
SP  - 085011 -
PY  - 2021
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000667469400001
DO  - DOI:10.1088/1361-6587/ac0614
UR  - https://juser.fz-juelich.de/record/902839
ER  -