Laser-driven collisionless shock acceleration of protons from gas jets tailored by one or two nanosecond beams

0551991 - FZÚ 2022 RIV US eng J - Článek v odborném periodiku
Bonvalet, J. - Loiseau, P. - Marqués, J.-R. - Atukpor, E. - d'Humieres, E. - Domange, J. - Forestier-Colleoni, P. - Hannachi, F. - Lancia, L. - Raffestin, D. - Tarisien, M. - Tikhonchuk, Vladimir - Nicolai, Ph.
Laser-driven collisionless shock acceleration of protons from gas jets tailored by one or two nanosecond beams.
Physics of Plasmas. Roč. 28, č. 11 (2021), č. článku 113102. ISSN 1070-664X. E-ISSN 1089-7674
Výzkumná infrastruktura: ELI Beamlines III - 90141
Institucionální podpora: RVO:68378271
Klíčová slova: collisionless shocks * plasma jets
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 2.357, rok: 2021
Způsob publikování: Omezený přístup
https://doi.org/10.1063/5.0062503

It was proposed recently that laser-ion acceleration in gas jets may be significantly improved if each side of a gas jet target is tailored by an auxiliary nanosecond laser pulse [Marque`s et al., Phys. Plasmas 28, 023103 (2021)]. In the present study, the proton acceleration by electrostatic shock in these one- or two-side tailored plasmas is investigated using particle-in-cell simulations. It is demonstrated that the formation of a thin plasma layer with a steep density profile and a maximum density of the order of the critical density strongly improves the proton acceleration in the forward direction with a maximum ion energy of tens of MeV with mildly relativistic laser pulses. Proton acceleration up to tens of MeV is predicted using realistic plasma density profiles obtained from tailored gas jet targets compared to a few MeV reported in other publications.
Trvalý link: http://hdl.handle.net/11104/0327189