Spin polarized proton beam generation from gas-jet targets by intense laser pulses

Abstract

A method of generating spin polarized proton beams from a gas jet by using a multi-petawatt laser is put forward. With currently available techniques of producing pre-polarized monatomic gases from photodissociated hydrogen halide molecules and petawatt lasers, proton beams with energy ~ 50 MeV and ~ 80 % polarization are proved to be obtained. Two-stage acceleration and spin dynamics of protons are investigated theoretically and by means of fully self-consistent three dimensional particle-in-cell simulations. Our results predict the dependence of the beam polarization on the intensity of the driving laser pulse. Generation of bright energetic polarized proton beams would open a domain of polarization studies with laser driven accelerators, and have potential application to enable effective detection in explorations of quantum chromodynamics.

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Cited by in corpus (11)

• Generation of polarized particle beams at relativistic laser intensities
• Spin-polarized electron beam generation in the colliding-pulse injection scheme
• Polarized proton acceleration in ultra-intense laser interaction with near critical density plasmas
• Acceleration of spin-polarized proton beams via two parallel laser pulses
• Energetic spin-polarized proton beams from two-stage coherent acceleration in laser-driven plasma
• On the robustness of spin polarization for magnetic vortex accelerated proton bunches in density down-ramps
• Spin-polarized ${}^3$He shock waves from a solid-gas composite target at high laser intensities
• Plasma acceleration of polarized particle beams
• Generation of arbitrarily polarized muon pairs via polarized $e^{-}{e}^{+}$ collision
• Enhanced MVA of Polarized Proton Beams via PW Laser-Driven Plasma Bubble
• Depolarization of Spin-Polarized Hydrogen via Collisions with Chlorine Atoms at Ultrahigh Density