On the robustness of spin polarization for magnetic vortex accelerated proton bunches in density down-ramps

Abstract

We investigate the effect of density down-ramps on the acceleration of ions via Magnetic Vortex Acceleration (MVA) 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.

arXiv comment10 pages, 4 figures

References in corpus (9)

• Precision Measurement of the Weak Charge of the Proton
• Ion Acceleration in Laser Generated Mega Tesla Magnetic Vortex
• Polarized electron-beam acceleration driven by vortex laser pulses
• Scaling laws for the (de-)polarization time of relativistic particle beams in strong fields
• Generation of polarized particle beams at relativistic laser intensities
• X-Dispersionless Maxwell solver for plasma-based particle acceleration
• Polarized Proton Beams from Laser-induced Plasmas
• Spin polarized proton beam generation from gas-jet targets by intense laser pulses
• Longitudinal Ion Acceleration from High-Intensity Laser Interactions with Underdense Plasma

Cited by in corpus (5)

• Spin-polarized electron beam generation in the colliding-pulse injection scheme
• Acceleration of spin-polarized proton beams via two parallel laser pulses
• Electron and ion acceleration from femtosecond laser-plasma peeler scheme
• Plasma acceleration of polarized particle beams
• Optimization of laser-driven proton acceleration in a near-critical-density plasma