München 2019 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 13: Hadron Accelerators and Colliders

AKBP 13.3: Talk

Thursday, March 21, 2019, 14:30–14:45, HS 8

Laser cooling experiments at ESR and CSRe — •Sebastian Klammes^1,2, Oliver Boine-Frankenheim^1,2, Michael Bussmann⁶, Axel Buß³, Christian Egelkamp³, Lewin Eidam², Volker Hannen³, Zhongkui Huang⁴, Daniel Kiefer², Thomas Kühl^1,5, Markus Löser^6,7, Xinwen Ma⁴, Fritz Nolden¹, Wilfried Nörtershäuser², Rodolfo Sánchez¹, Ulrich Schramm^6,7, Mathias Siebold⁶, Peter Spiller¹, Markus Steck¹, Thomas Stöhlker^1,5,8, Johannes Ullmann^2,8, Thomas Walther², Hanbing Wang⁴, Weiqiang Wen⁴, Christian Weinheimer³, Daniel Winzen³, and Danyal Winters¹ — ¹GSI Darmstadt — ²TU Darmstadt — ³Uni Münster — ⁴IMP Lanzhou — ⁵HI-Jena — ⁶HZDR Dresden — ⁷TU-Dresden — ⁸Uni-Jena

At heavy-ion storage rings, almost all experiments strongly benefit from cooled ion beams, i.e. beams which have a small relative momentum spread and a small emittance. Although electron cooling and stochastic cooling are most frequently used, laser cooling has proven to be a powerful technique with a large potential. Laser cooling is based on resonant absorption (of momentum & energy) in the longitudinal direction and subsequent spontaneous random emission (fluorescence) of photons by ions. Because of its efficiency at high energies, laser cooling will e.g. be the only cooling method at the heavy-ion synchrotron SIS100. We will report on results from recent laser cooling experiments performed at the ESR (GSI) and the CSRe (IMP, Lanzhou, China) storage rings, using C³⁺ and O⁵⁺ ion beams, respectively. Finally, we will present our plans for laser cooling experiments at FAIR.