Energy loss of Cl$^{q+}$ (52 MeV) through dilute H2 target: Evidence of non-linear term and non-Coulombian potential contribution

Abstract : This report states about correlated charge and energy loss measurements in the collisional system Cl ions (1.5 Mev/u) in H2. A windowless gaseous target with different thicknesses was used to measure simultaneously the charge state distributions (CSD) and the energy losses by the main populated outgoing charge states (q=12–15). The Markov chain of the charge-changing process was deduced from a Monte-Carlo computation of the CSD evolution. The stopping cross-sections for individual charge states were finally deduced from energy loss data. Comparison of the experimental results with detailed calculations gives a clear evidence of relative importance of the individual contribution of non-linear correction terms and of the electron cloud bound to the projectiles. These two effects may be important for HI-ICF scenarios where a non-equilibrium charge state behavior is likely to occur.
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Conference papers

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Submitted on : Wednesday, July 4, 2007 - 9:44:17 AM
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Citation

M. Chabot, D. Gardès, M. Nectoux, G. Maynard, C. Deutsch. Energy loss of Cl$^{q+}$ (52 MeV) through dilute H2 target: Evidence of non-linear term and non-Coulombian potential contribution. 16th International Symposium on Heavy Ion Inertial Fusion (HIF 06), Jul 2006, Saint Malo, France. pp.353-356, ⟨10.1016/j.nima.2007.02.029⟩. ⟨in2p3-00159572⟩

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