SAMOP 2023 – scientific programme

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A: Fachverband Atomphysik

A 13: Highly Charged Ions and their Applications I

A 13.4: Talk

Wednesday, March 8, 2023, 12:00–12:15, F107

Laser cooling of bunched relativistic ion beams at the FAIR SIS100 — •Sebastian Klammes¹, Michael Bussmann^2,3, Jens Gumm⁴, Volker Hannen⁵, Thomas Kühl^1,6, Benedikt Langfeld⁴, Ulrich Schramm^2,7, Mathias Siebold², Peter Spiller¹, Thomas Stöhlker^1,6,8, Ken Ueberholz⁵, Thomas Walther^4,9, and Danyal Winters¹ — ¹GSI Darmstadt — ²HZDR Dresden — ³CASUS Görlitz — ⁴TU-Darmstadt — ⁵Uni Münster — ⁶HI-Jena — ⁷TU-Dresden — ⁸Uni-Jena — ⁹HFHF Frankfurt am Main

The heavy-ion synchrotron SIS100 is the core machine of the Facility for Antiproton and Ion Research (FAIR) in Darmstadt, Germany. It is capable of accelerating a large range of ions, which will be produced by the upgraded GSI facility, up to highly relativistic velocities and extracting them for unique experiments, e.g. APPA/SPARC. In order to cool such intense beams of heavy highly charged ions, laser cooling of bunched ion beams was preferred. Therefore, laser beams from three complementary laser systems (cw and pulsed) will be superimposed in time, space and frequency to interact simultaneously with a very broad ion velocity range to maximize the cooling efficiency at the SIS100. With the construction of the synchrotron, the laser cooling pilot facility at SIS100, being also the only in-ring experiment, is currently being realized. We will present this project, give an update of its current status and also give an overview of the laser and detector systems that will be used.