Reducing ion energy spread in hole-boring radiation pressure acceleration by using two-ion-species targets

Weng, S.M. and Muramaki, M. and Sheng, Z.M. (2015) Reducing ion energy spread in hole-boring radiation pressure acceleration by using two-ion-species targets. Laser and Particle Beams. ISSN 0263-0346

[img] PDF (Weng-etal-LPB-2015-Reducing-ion-energy-spread-in-hole-boring-radiation-pressure)
Weng_etal_LPB_2015_Reducing_ion_energy_spread_in_hole_boring_radiation_pressure.pdf
Accepted Author Manuscript

Download (681kB)

    Abstract

    The generation of fast ion beams in the hole-boring radiation pressure acceleration by intense laser pulses has been studied for targets with different ion components. We find that the oscillation of the longitudinal electric field for accelerating ions can be effectively suppressed by using a two-ion-species target, because fast ions from a two-ion-species target are distributed into more bunches and each bunch bears less charge. Consequently, the energy spread of ion beams generated in the hole-boring radiation pressure acceleration can be greatly reduced down to 3.7% according to our numerical simulation.