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Berlin 2005 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 22: Postersitzung

HK 22.31: Poster

Montag, 7. März 2005, 16:30–18:00, TU MA141

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. Karpuk41LMU 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

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