TUOGA2

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URL	https://doi.org/10.18429/JACoW-IPAC2023-TUOGA2
Title	Laser cooling taken to the extreme: cold relativistic intense beams of highly-charged heavy ions
Authors	D. Winters, S. Klammes, T. Kuehl, P. Spiller, T. Stoehlker GSI Helmholtzzentrum für Schwerionenforschung GmbH M. Bussmann Center for Advanced Systems Understanding M. Siebold, U. Schramm Helmholtz-Zentrum Dresden-Rossendorf B. Langfeld, J. Gumm, T. Walther Technische Universitaet Darmstadt V. Hannen, K. Ueberholz Westfälische Wilhelms-Universität Münster C. Weinheimer Institut für Kernphysik X. Ma, W. Wen Institute of Modern Physics, Chinese Academy of Sciences
Abstract	Recent storage ring experiments have demonstrated the power and the potential of laser cooling of bunched relativistic ion beams. Encouraged by this, the heavy-ion synchrotron SIS100 at FAIR (Darmstadt, Germany) will be equipped with a truly unique laser cooling facility. A sophisticated combination of 3 newly developed UV (257 nm) laser systems and modest rf-bunching will allow for fast cooling of injected intense heavy-ion beams. There will be two powerful pulsed laser systems with MHz repetition rates and variable pulse duration (1-50 ps and 50-740 ps) and one powerful tunable cw laser system. The picosecond laser pulses are broad in frequency and will enable fast cooling of injected ion beams with a large initial longitudinal momentum spread. The cw laser can be rapidly tuned over a large frequency range and has high spectral power density, forcing the ion beams to remain cold during storage. This combination of 3 UV laser beams should be up to the challenge of suppressing intra-beam scattering and space charge effects. We will present new experimental results from the ESR storage ring and the status of the SIS100 laser cooling facility.
Paper	download: TUOGA2.pdf
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Conference	14th International Particle Accelerator Conference
Series
Location	Venice, Italy
Date	07-12 May 2023
Publisher	JACoW Publishing, Geneva, Switzerland
Editorial Board	Ralph Assmann - Deutsches Elektronen-Synchrotron DESY Peter McIntosh - Science and Technology Facilities Council (STFC/DL/ASTeC) Giovanni Bisoffi - Istituto Nazionale di Fisica Nucleare (INFN/LNL) Alessandro Fabris - Elettra-Sincrotrone Trieste S.C.p.A. Ivan Andrian - Elettra-Sincrotrone Trieste S.C.p.A. Giulia Vinicola - Istituto Nazionale di Fisica Nucleare (INFN/LNF)
Online ISBN	978-3-95450-231-8
Online ISSN	2673-5490
Received	02 May 2023
Revised	08 June 2023
Accepted	08 June 2023
Issued	26 September 2023
DOI	10.18429/JACoW-IPAC2023-TUOGA2
Pages	1314-1318
Copyright	Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.