S604
GSI, Darmstadt, Germany
TU Darmstadt, Darmstadt, Germany
Westfälische Wilhelms-Universität Münster, Institut für Kernphysik, Münster, Germany
HZDR, Dresden, Germany
CASUS, Görlitz, Germany
IMP/CAS, Lanzhou, People’s Republic of China
Universität Kassel, Kassel, Germany
HFHF, Frankfurt am Main, Germany
HIJ, Jena, Germany
IOQ, Jena, Germany
Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Münster, Germany
We present our new (but still preliminary) results from a recent test beamtime for laser cooling of carbon ions (12C3+ @ 122 MeV/u) at the ESR. In May 2021, GSI kindly offered us the possibility to test the new pulsed UV laser system from the TU Darmstadt, which has a very high repetition rate (10 MHz), a variable pulse duration (70 - 740 ps) and more power (up to 250 mW). We have demonstrated laser cooling using this laser and present results for different laser pulse durations (166 - 740 ps). In addition, we could test the improved moveable in-vacuo fluorescence detection system from Münster University. Finally, we could also demonstrate our new ion bunch - laser pulse timing scheme and observe clear delay effects.
