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A: Fachverband Atomphysik

A 14: Highly Charged Ions

A 14.7: Vortrag

Dienstag, 7. März 2017, 16:00–16:15, HS 20

Recent laser cooling and laser spectroscopy experiments at the ESR — •Danyal Winters¹, Oliver Boine-Frankenheim^1,2, Axel Buß³, Christian Egelkamp³, Lewin Eidam², Volker Hannen³, Zhongkui Huang⁴, Daniel Kiefer², Sebastian Klammes², Thomas Kühl^1,5, Markus Löser^6,7, Xinwen Ma⁴, Fritz Nolden¹, Wilfried Nörtershäuser², Rodolfo Sanchez Alarcon¹, Ulrich Schramm^6,7, Mathias Siebold⁶, Markus Steck¹, Thomas Stöhlker^1,5,8, Johannes Ullmann^2,8, Thomas Walther², Hanbing Wang⁴, Weiqiang Wen⁴, Christian Weinheimer³, Daniel Winzen³, and Michael Bussmann⁶ — ¹GSI Darmstadt — ²TU-Darmstadt — ³Uni Münster — ⁴IMP Lanzhou — ⁵HI-Jena — ⁶HZDR Dresden — ⁷TU-Dresden — ⁸Uni-Jena

Laser cooling is one of the most promising techniques for ion beam cooling at high energies. The fluorescence emitted during the cooling process can be used for both optical beam diagnostics and precision spectroscopy. We present results on experiments with ¹²C³⁺ beams (122 MeV/u) stored in the experimental storage ring (ESR) in Darmstadt, Germany. To excite the cooling transition, a pulsed laser system with a high repetition rate, and a wide-scanning cw laser system have been used. To detect the fluorescence, a novel XUV detector system, installed inside the vacuum of the ESR, was used. We will present the experimental setup and preliminary data on the interaction of the lasers with the ion beam, and discuss it in the light of future experiments at the high-energy storage rings of FAIR in Germany and HIAF in China.