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Berlin 2005 – scientific programme

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A: Atomphysik

A 8: Poster HU 1

A 8.7: Poster

Saturday, March 5, 2005, 08:30–18:30, Poster HU

Probing the structure of crystalline ion beams. — •M. Bussmann, U. Schramm, and D. Habs — LMU München, Department für Physik

We present methods to determine the spatial and temporal structure of crystalline ion beams at the storage ring PALLAS.
In the PALLAS table top storage ring coasting and bunched crystalline beams of 24Mg+ ions can be routinely generated using Doppler laser cooling. Moreover PALLAS serves as a test environment for laser cooling schemes planned at large storage ring experiments[1].
A new experimental technique to probe the structural characteristics and dynamics of ion beams by measuring an optically detected Schottky noise signal of the flurorescent ions is depicted. Accompanying the experiment a new molecular dynamics package[2] has been developed at the LMU to study the form and structure of bunched crystalline beams and the dynamics of the phase transition. The results from simulations are compared to experimental data.

[†] funded by DFG (Ha 1101/7)

[1] Poster U. Schramm et al. Laser cooling of relativistic C3+ ion beams at the ESR

[2] Poster M. Bussmann et al. Sympathetic cooling of highly charged ions in laser-cooled plasmas for precision mass measurements

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