München 2019 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 13: Hadron Accelerators and Colliders
AKBP 13.2: Vortrag
Donnerstag, 21. März 2019, 14:15–14:30, HS 8
Laser cooling of stored relativistic heavy-ion beams at the SIS100 — •Danyal Winters1, Daniel Albach3,5, Gerhard Birkl2, Michael Bussmann3, Volker Hannen4, Max Horst1,2, Daniel Kiefer2, Sebastian Klammes1,2, Thomas Kühl1, Markus Löser3,5, Ulrich Schramm3,5, Mathias Siebold3,5, Thomas Stöhlker1,6,7, Johannes Ullmann1,4, Thomas Walther2, Daniel Winzen4, and Peter Spiller1 — 1GSI Darmstadt — 2TU Darmstadt — 3HZDR Dresden — 4Uni Münster — 5TU Dresden — 6HI Jena — 7Uni Jena
At relativistic velocities, laser cooling is an efficient technique to minimize the momentum spread of stored heavy-ion beams in storage rings. For the future facility FAIR in Darmstadt, this cooling method will also uniquely be applied to the heavy-ion synchrotron SIS100. As part of this project, we are currently designing a dedicated laser beamline, which will run from the laser lab (maintenance tunnel) to the ion beampipe (accelerator tunnel). The laser beamline will be about 25 m long and pumped down to reach a vacuum of ∼10−6 mbar. To analyze and prepare for unwanted effects during laser cooling, such as optical pumping, changes in the polarization of the transported laser light are being studied using a scaled-down version of the laser beamline and the real optics. We will present the status of the construction of the SIS100 (building site), give an overview of our project and show some of our test results.