Hannover 2013 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 10: Precision spectroscopy of atoms and ions II (with Q)

A 10.6: Vortrag

Montag, 18. März 2013, 17:45–18:00, F 428

Broadband lasercooling of relativistic ions at the ESR — •Danyal Winters1, Colin Clark1, Christina Dimopoulou1, Tino Giacomini1, Christophor Kozhuharov1, Thomas Kühl1,2,3, Matthias Lochmann1,2, Wilfried Nörtershäuser1,2,4, Fritz Nolden1, Rodolfo Sanchez1,2, Shahab Sanjari1, Markus Steck1, Thomas Stöhlker1,3,5, Johannes Ullmann1, Tobias Beck4, Gerhard Birkl4, Benjamin Rein4, Sascha Tichelmann4, Thomas Walther4, Xinwen Ma6, Weiqiang Wen6, Jie Yang6, Dacheng Zhang6, Ulrich Schramm7, Michael Seltmann7, Mathias Siebold7, and Michael Bussmann71GSI Darmstadt — 2Uni Mainz — 3HI Jena — 4TU Darmstadt — 5Uni Jena — 6IMP CAS Lanzhou, China — 7HZDR Dresden

We present new results on broadband laser cooling of stored relativistic C3+ ion beams at the ESR in Darmstadt. For the first time we could show laser cooling of bunched relativistic ion beams using a UV-laser which could scan over a very large range and thus cool all the ions in the ‘bucket’. This scheme is much more versatile than a previous scheme, where the bunching frequency was scanned relative to a fixed laser frequency. We have also demonstrated that this cooling scheme works without pre-electron cooling, which is a prerequisite for its general application to future storage rings and synchrotrons, such as the HESR and the SIS100 at FAIR. We also present results from in vacuo VUV-fluorescence detectors, which have proven to be very effective.

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DPG-Physik > DPG-Verhandlungen > 2013 > Hannover