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The role of collisional ionization in heavy ion acceleration by high intensity laser pulses
M Afshari1, S Morris2, L D Geulig3
1Fakultät für Physik, Ludwig-Maximilians-Universität München, 85748, Garching bei München, Germany. m.afshari@lmu.de.
Abstract:
We present here simulation results of the laser-driven acceleration of gold ions using the EPOCH code. Recently, an experiment reported the acceleration of gold ions up to 7 MeV/nucleon with a strong dependency of the charge-state distribution on target thickness and the detection of the highest charge states [Formula: see text]. Our simulations using a developmental branch of EPOCH (4.18-Ionization) show that collisional ionization is the most important cause of charge states beyond Z = 51 up to He-like Au.
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