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Article Dans Une Revue Review of Scientific Instruments Année : 2019

Development of gas jet targets for laser-plasma experiments at near-critical density

Résumé

Computational fluid dynamics simulations are performed to design gas nozzles, associated with a 1000 bars backing pressure system, capable of generating supersonic gas jet targets with densities close to the critical density for 1053 nm laser radiation (10$^{21}$ cm$^{-3}$). Such targets should be suitable for laser-driven ion acceleration at a high repetition rate. The simulation results are compared to the density profiles measured by interferometry, and characterization of the gas jet dynamics is performed using strioscopy. Proton beams with maximum energies up to 2 MeV have been produced from diatomic hydrogen gas jet targets in a first experiment.
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Dates et versions

hal-02178534 , version 1 (16-02-2024)

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J.L. Henares, P. Puyuelo-Valdes, F. Hannachi, T. Ceccotti, M. Ehret, et al.. Development of gas jet targets for laser-plasma experiments at near-critical density. Review of Scientific Instruments, 2019, 90 (6), pp.063302. ⟨10.1063/1.5093613⟩. ⟨hal-02178534⟩
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