Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf
2 PublicationsSpectral Control via Multi-Species Effects in PW-Class Laser-Ion Acceleration
Huebl, A.; Rehwald, M.; Obst-Huebl, L.; Ziegler, T.; Garten, M.; Widera, R.; Zeil, K.; Cowan, T. E.; Bussmann, M.; Schramm, U.; Kluge, T.
Laser-ion acceleration with ultra-short pulse, PW-class lasers is dominated by non-thermal, intra-pulse plasma dynamics. The presence of multiple ion species or multiple charge states in targets leads to characteristic modulations and even mono-energetic features, depending on the choice of target material. As spectral signatures of generated ion beams are frequently used to characterize underlying acceleration mechanisms, thermal, multi-fluid descriptions require a revision for predictive capabilities and control in next-generation particle beam sources. We present an analytical model with explicit inter-species interactions, supported by extensive ab initio simulations. This enables us to derive important ensemble properties from the spectral distribution resulting from those multi-species effects for arbitrary mixtures. We further propose a potential experimental implementation with a novel cryogenic target, delivering jets with variable mixtures of hydrogen and deuterium. Free from contaminants and without strong influence of hardly controllable processes such as ionization dynamics, this would allow a systematic realization of our predictions for the multi-species effect.
Keywords: LPA; laser-ion acceleration; TNSA; multi-species; cryogenic target; particle-in-cell
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Supplementary Data: Spectral Control via Multi-Species Effects in PW-Class …
ROBIS: 28969 HZDR-primary research data are used by this (Id 28962) publication
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Poster
Laser-Plasma Accelerator Workshop 2019, 06.-10.05.2019, Split, Kroatien -
Plasma Physics and Controlled Fusion 62(2020)12, 124003
DOI: 10.1088/1361-6587/abbe33
Cited 8 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-28962
Publ.-Id: 28962