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A: Fachverband Atomphysik
A 28: Poster Session - Atomic Physics IV
A 28.34: Poster
Donnerstag, 12. März 2020, 16:00–18:00, Empore Lichthof
ECR ion source for the local injector of CRYRING at GSI/FAIR — •Sebastian Fuchs1,2, Paul Willamowski1, Alexander Borovik Jr1, Svetlana Fedotova2, Gleb Vorobjev2, Frank Herfurth2, Michael Lestinsky2, and Stefan Schippers1 — 1I. Physikalisches Institut, Justus-Liebig-Universität Gießen, 35392 Giessen, Germany — 2GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
We report on the adaptation of an all-permanent-magnet 10-GHz electron-cyclotron-resonance (ECR) ion source for the local injector of the low-energy heavy-ion storage ring CRYRING at the international Facility for Antiproton and Ion Research (FAIR) in Darmstadt, Germany. CRYRING which is currently being commissioned offers world-unique possibilities for atomic physics experiments [1]. The here featured activity aims at providing a reliable and powerful ECR ion source of the multi-mode type [2] for the local injector, that can be used without the GSI accelerator chain for first in-ring experiments. The ion source was optimized at the Giessen ion-source test bench, e. g. for intense C+ ion beam production using different source gases reaching a C+ current of up to 15.5 µA. The employment of the present ion source at CRYRING required several adjustments, among others, an adaptation of the ion-beam forming optics onto the acceleration voltage of 40 kV.
[1] M. Lestinsky et al., Eur. Phys. J. ST 225, 797 (2016).
[2] F. Broetz et al., Phys. Scr. T92, 278 (2001).