Rostock 2019 – scientific programme
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A: Fachverband Atomphysik
A 22: Highly charged ions and their applications
A 22.3: Poster
Wednesday, March 13, 2019, 16:15–18:15, S Fobau Physik
Status of the free-electron target for CRYRING@ESR — Carsten Brandau1,2, Alexander Borovik Jr1, •B. Michel Döhring1,2, Benjamin Ebinger1,2, Alfred Müller1, and Stefan Schippers1 — 1Justus-Liebig-Universität Gießen — 2GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt (Germany)
The anti-proton and heavy-ion accelerator facility FAIR which is currently under construction in Darmstadt will provide excellent conditions for novel investigations in atomic physics. One of the first operational devices will be the storage ring CRYRING@ESR [1], where we will install a transverse free-electron target for electron-ion crossed-beams in-ring experiments. Such a crossed-beams setup has never been realised at a heavy-ion storage ring before. The transverse target is based on an earlier development in Gießen [2] and will be commissioned at a test bench there soon. A multi-electrode assembly is used that controls beam parameters such as beam size, electron density, and electron energy. The target is envisaged for electron energies up to 12.5 keV and will reach electron densities of up to 109 cm−3 electron density. The present status of the project will be presented.
[1] M. Lestinsky et al., 2016 Eur. Phys. J. ST 225 797.
[2] B. Ebinger et al., 2017 Nucl. Instrum. Meth. B 408 317.