Berlin 2001 – scientific programme
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P: Plasmaphysik
P 9: Dense Plasmas and Plasma Diagnostic (Poster Session)
P 9.9: Poster
Tuesday, April 3, 2001, 12:30–15:00, AT2
Simulations of recent heavy ion - cryo crystal experiments at GSI — •A. Kozyreva1, N. Tahir2, D. Varentsov1, P. Spiller3, A. Shutov4, and D.H.H. Hoffmann1,3 — 1Technische Universität Darmstadt — 2Universität Frankfurt — 3Gesellschaft für Schwerionenforschung, Darmstadt — 4IPCP RAS, Chernogolovka, Russia
The accelerator facilities at GSI Darmstadt offer a unique possibility for experiments with heavy-ion-induced dense plasmas. After recent upgrades of the SIS-18 heavy ion synchrotron the intensity of heavy ion beams has been increased significantly. During the year 2000, a series of experiments with very intense (up to 1011 particles per 200-1200 ns pulse) energetic beams has been performed by the GSI Plasma physics group. In particular, cryogenic rare gas crystals were employed as a target for intense beam of heavy ions. In these experiments energy loss time evolution of the projectiles due to the hydrodynamic motion of the ion-beam heated target matter has been detected for the first time. In order to advance our knowledge about the interaction phenomena between the heavy ion beams and the solid targets observed in the experiments, numerical simulations have been performed. These simulations also provided useful issues for design of the future experiments of this kind. The simulations were carried out using a sophisticated two-dimensional hydrodynamic code. The hydrodynamic response of the target have been studied together with the energy loss dynamics of the projectile ions penetrating through the heated target matter. The calculated time evolution of the energy of the ions escaping the target is in good agreement with the measured results.