Darmstadt 2008 – scientific programme
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A: Fachverband Atomphysik
A 23: Precision spectroscopy II
A 23.2: Talk
Thursday, March 13, 2008, 14:15–14:30, 3C
Simulation of the dynamics of a cloud of highly-charged ions in a Penning trap for the HITRAP project — •Giancarlo Maero1, Irene Chiarelli1, Frank Herfurth1, Oliver Kester1, H.-Jürgen Kluge1, Stephen Koszudowski1, Wolfgang Quint1, and Stefan Schwarz2 — 1GSI Darmstadt, Germany — 2MSU, East Lansing, USA
Atomic physics investigations on cold, highly-charged ions will be possible in the next years at HITRAP, the GSI facility for the deceleration of heavy, highly-charged ions up to U92+. Bunches of 105 ions will be trapped and cooled down to 4 K in the cooler Penning trap via electron and resistive cooling. A Particle-In-Cell (PIC) code has been developed to study the dynamics of the ion cloud during the cooling process. The challenges were the incorporation of the strong magnetic field and the implementation of the resistive cooling mechanism for a cloud of interacting ions. We discuss the results with emphasis on the space charge effects and the resistive cooling technique.