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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 5: Hadron Accelerators

AKBP 5.7: Vortrag

Dienstag, 21. März 2023, 18:00–18:15, CHE/0184

Laser cooling of bunched relativistic ion beams at the FAIR SIS100 — •Danyal Winters¹, Michael Bussmann^2,3, Jens Gumm⁴, Volker Hannen⁵, Thomas Kühl^1,6, Sebastian Klammes¹, Benedikt Langfeld⁴, Ulrich Schramm^2,7, Mathias Siebold², Peter Spiller¹, Thomas Stöhlker^1,6,8, Ken Ueberholz⁵, and Thomas Walther^4,9 — 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. We will use a novel concept, where laser beams from three complementary laser systems (cw and pulsed) will be overlapped in space, time and frequency to interact simultaneously with a very broad ion velocity range in order to maximize the cooling efficiency. Therefore, the laser cooling pilot facility at the SIS100, being also the only in-ring experiment, is currently being realized. We will present this project and give an update of its current status. We will also give an overview of the laser and detector systems that will be used.