Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

A: Fachverband Atomphysik

A 23: Precision spectroscopy II

A 23.2: Vortrag

Donnerstag, 13. März 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.