Field ionization model implemented in Particle In Cell code and applied to laser-accelerated carbon ions

Nuter, R.; Gremillet, L.; Lefebvre, E.; Lévy, A.; Ceccotti, T.; Martin, P.
March 2011
Physics of Plasmas;Mar2011, Vol. 18 Issue 3, p033107
Academic Journal
A novel numerical modeling of field ionization in PIC (Particle In Cell) codes is presented. Based on the quasistatic approximation of the ADK (Ammosov Delone Krainov) theory and implemented through a Monte Carlo scheme, this model allows for multiple ionization processes. Two-dimensional PIC simulations are performed to analyze the cut-off energies of the laser-accelerated carbon ions measured on the UHI 10 Saclay facility. The influence of the target and the hydrocarbon pollutant composition on laser-accelerated carbon ion energies is demonstrated.


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