Laser-plasma accelerated protons: energy increase in gas-mixtures using high mass number atomic species

0521674 - FZÚ 2020 RIV CH eng J - Journal Article
Levato, Tadzio - Goncalves, Leonardo V.N. - Giannini, V.
Laser-plasma accelerated protons: energy increase in gas-mixtures using high mass number atomic species.
Fluids. Roč. 4, č. 3 (2019), s. 1-13, č. článku 150. E-ISSN 2311-5521
R&D Projects: GA MŠMT EF16_019/0000789; GA MŠMT LQ1606
Grant - others:OP VVV - ADONIS(XE) CZ.02.1.01/0.0/0.0/16_019/0000789
Institutional support: RVO:68378271
Keywords : proton acceleration * high density gas-jet * gas-mixture * laser wake-field acceleration (LWFA)
OECD category: Fluids and plasma physics (including surface physics)
Method of publishing: Open access

The idea of using a gas-mixture comprising atoms with a high mass number in order to increase proton energies in laser induced plasma acceleration at critical density is investigated by means of 2D PIC (Particle-In-Cell) simulations. Comparing and discussing the case of a pure hydrogen plasma and that of a plasma containing higher mass number species with a small percentage of hydrogen, we demonstrate that the mixture enhances the energies of the accelerated protons. We also show that using a gas-mixture introduces the possibility of using the densities ratio in order to change the relative acceleration of the species.
Permanent Link: http://hdl.handle.net/11104/0306266