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P: Plasmaphysik
P 14: Schwerionen- und lasererzeugte Plasmen 1
P 14.5: Vortrag
Dienstag, 28. März 2006, 15:45–16:00, 1004
Spectroscopic investigations of the heavy ion charge state dynamics in solid and gaseous targets — •Korostiy Svitlana1, Rosmej Olga1, Blazevic Abel2, Fertman Alexander3, Turtikov Vladimir3, Pikuz Sergey4, Mutin Timofey3, Efremov Vladimir4, Shevelko Viatcheslav5, and Hoffmann Dieter1,2 — 1Gesellschaft für Scherionenforschung, GSI, Department of Plasma Physics, Darmstadt, Germany — 2Technical University, Darmstadt, Germany — 3Institute of Experimental and Theoretical Physics, Moscow, Russia — 4Institute for High Energy Density, Russian Academy of Sciences, Moscow, Russia — 5Lebedev Institute, Russian Academy of Sciences, Moskow, Russia
The study of heavy ion stopping dynamics using the X-ray spectroscopy of K-shell projectile radiation is at the focus of our researches. 5.9 and 11.4 MeV/u Ca ions were slowed down in silica aerogels and 1.9 Bar Ne gas. The characteristic emission of ions in photon range of 3-4 MeV/u was registered by means focusing spectrometers with spatial resolution. To determine the ion velocity dynamics along the ion beam trajectory inside the interaction volume the Doppler Effect was used. Silica aerogels with low densities of 0.01-0.15 g/cc allowed stretching the ion stopping range and resolved dynamics of stopping inside solid target. The charge state distribution measured in gaseous target has shown the difference in comparison with solids. The theoretical calculations were done to prove the evidance of gas-solid effect.