SMI Seminar on fundamental interactions and symmetries

VERA-SMI Joint Webinar: CRYRING@ESR – the first FAIR storage ring in operation

by Dr. Oliver Forstner (Friedrich-Schiller-Universität & Helmholtz Institute, Jena, Germany)

Thursday, 25 June 2020 from to (Europe/Vienna)
at Webinar

This Seminar will be held as a video-conference and will be a Joint Seminar together with VERA.
If you wish to join please register by sending an email to:
martin.simon at
An email including details on how to connect will follow one day prior to the seminar, i.e. on the 24th of June, 2020.


Dr. Oliver Forstner1,2,3 for the SPARC Collaboration4

1 Friedrich-Schiller-Universität Jena
2 Helmholtz Institut Jena
3 GSI Helmholtzzentrum für Schwerionenforschung GmbH
4 Stored Particles Atomic Physics Research Collaboration at FAIR


CRYRING@ESR is the first operational heavy ion storage ring of the FAIR project (Facility for Antiproton and Ion Research) [1]. It has a long history of successful research in atomic and molecular physics during its two-decade operation as a central research facility of the Manne Siegbahn Laboratory in Stockholm, Sweden. After its shutdown it was decided to transfer CRYRING to FAIR/GSI as a Swedish in-kind contribution to the FAIR project. Starting in 2015 it was modernized, adapted to FAIR standards and connected to the existing experimental storage ring ESR under the project name CRYRING@ESR. In 2017 first ions from a local ion source could be stored and in the end of 2019 first ions from ESR were successfully transferred and stored in CRYRING@ESR. Despite the difficult situation due to SARS-CoV-2 in spring this year a reduced physics program during the GSI beam time block could be performed. For the next two years approx. 400 8-hour shifts are foreseen for experiments at ESR and CRYRING. A call for beam time proposals just ended a few days ago and a large number of applications is expected.

In this seminar I will present the status of CRYRING@ESR and give an overview of the foreseen physics program together with results from the first successful experiments.

[1] GSI press release 08.06.2020,

[2] Physics book: CRYRING@ESR, Eur. Phys. J. Spec. Top. (2016) 225:797,


Prof. Dr. Eberhard Widmann (SMI)
Prof. Dr. Robin Golser (VERA)