Berlin 2005 – scientific programme
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A: Atomphysik
A 8: Poster HU 1
A 8.6: Poster
Saturday, March 5, 2005, 08:30–18:30, Poster HU
Laser cooling of relativistic C3+ ion beams at the ESR†. — •U. Schramm1, M. Bussmann1, D. Habs1, M. Steck2, T. Kühl2, K. Beckert2, P. Beller2, B. Franzke2, F. Nolden2, G. Saathoff3, S. Reinhard3, and S. Karpuk4 — 1LMU München, Department für Physik — 2GSI, Darmstadt — 3MPI für Kernphysik, Heidelberg — 4Universität Mainz, Institut für Kernphysik
We present results of the first laser cooling experiment with relativistic
C3+ beams at 1.47 GeV energy at the Experimental Storage
Ring (ESR) at GSI. A bunched beam of several 10 µ A was
laser-cooled by a counterpropagating laser beam kept at a fixed wavelength
of λ=257 nm. With pure laser cooling[1] the regime of a
longitudinally space-charge dominated beam with a momentum spread of
Δ p/p ≈ 10−7 was reached – a value unprecedented
at the ESR.
These experiments represent an important intermediate step for the
development of laser cooling techniques proposed for beams of
highly-charged heavy ions at the future SIS300 synchrotron (GSI-FAIR) in a
regime where no other cooling scheme seems feasible.
[†] funded by BMBF (06ML183)
[1] Poster M. Bussmann et al. Probing the structure of crystalline ion beams