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A: Fachverband Atomphysik
A 21: Highly charged ions and their applications
A 21.4: Poster
Wednesday, March 16, 2022, 16:30–18:30, P
Laser Cooling of Relativistic Ion Beams Employing a Transportable Pulsed UV Laser System — •Benedikt Langfeld1, Lars Bozyk2, Michael Bussmann3,4, Noah Eizenhöfer1, Volker Hannen5, Max Horst1, Daniel Kiefer1, Nils Kiefer6, Sebastian Klammes2, Thomas Kühl2,7, Markus Löser3, Xinwen Ma8, Wilfried Nörtershäuser1, Rodolfo Sanchez2, Ulrich Schramm3,9, Mathias Siebold3, Peter Spiller2, Markus Steck2, Thomas Stöhlker2,7,10, Ken Ueberholz5, Thomas Walther1,11, Hanbing Wang7, Weiqiang Wen7, and Danyal Winters2 — 1TU Darmstadt — 2GSI Darmstadt — 3HZDR Dresden — 4CASUS Görlitz — 5Uni Münster — 6Uni Kassel — 7HI Jena — 8IMP Lanzhou — 9TU Dresden — 10Uni Jena — 11HFHF Ffm
Laser cooling of relativistic ion beams has been shown to be a promising technology to generate bright ion beams. To strongly reduce intrabeam scattering, a well-known problematic effect for high-intensity ion beams, pulsed laser systems with broad bandwidths can be employed.
In this work, we present preliminary results from a recent (May 2021) laser cooling "beam experiment" at the ESR storage ring at GSI Helmholtzzentrum Darmstadt, employing relativistic C3+ ion beams and our tuneable high repetition rate UV laser system. We have developed a transportable master-oscillator-power-amplifier system, supplying Fourier transform limited pulses with a continuously adjustable pulse duration between 50 and 735 ps and repetition rate of 1 to 10 MHz. With two SHG stages, the desired wavelength of 257.25 nm can be achieved, yielding > 200 mW during the beam experiment.