Erlangen 2018 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 28: Precision Spectroscopy V - highly charged ions (joint session A/Q)

A 28.6: Vortrag

Mittwoch, 7. März 2018, 15:15–15:30, K 1.016

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 Klammes^1,2, Thomas Kühl^1,5, Markus Löser^6,7, Xinwen Ma⁴, Peter Spiller¹, Wilfried Nörtershäuser², Rodolfo Sanchez Alarcon¹, Ulrich Schramm^6,7, Mathias Siebold⁶, Markus Steck¹, Thomas Stöhlker^1,5,8, Johannes Ullmann³, 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

One of the most promising techniques for ion beam cooling at relativistic energies, is laser cooling. The fluorescence emitted after laser excitation 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. The cooling transition in the ions was excited using a pulsed laser system with a high repetition rate, and a wide-scanning cw laser system. A novel XUV detector system, installed inside the vacuum of the ESR, was used to detect the fluorescence from the ions. We will present the experimental setup and preliminary data, and give an outlook on future experiments at FAIR in Germany and HIAF in China.