Status and outlook of the CRYRING@ESR project
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Status and outlook of the CRYRING@ESR project W. Geithner1 · Z. Andelkovic1 · D. Beck1 · H. Br¨auning1 · A. Br¨auning-Demian1 · H. Danared2 · C. Dimopoulou1 · M. Engstr¨om3 · S. Fedotova1 · O. Gorda1 · F. Herfurth1 · R. Hess1 · A. K¨allberg3 · C. Kleffner1 · N. Kotovskiy1 · I. Kraus1 · M. Lestinsky1 · S. Litvinov1 · F. Nolden1 · A. Reiter1 · T. Sieber1 · M. Steck1 · G. Vorobyev1
© Springer International Publishing Switzerland 2017
Abstract Once operational, CRYRING@ESR will store and decelerate ions delivered by the experimental storage ring ESR at energies well below those of ESR. In addition to that, CRYRING@ESR has an electron cooler operating with an ultracold electron beam, allowing to provide cooled ion beams for precision experiments. These ions will be delivered to a broad range of experiments presently in preparation; either in-ring or extracted to a dedicated beamline for experiments. An overview and status report of the installation and commissioning of the CRYRING-@ESR storage ring for highly charged ions at the GSI Helmholtzzentrum f¨ur Schwerionenforschung is presented. The installation of this storage ring started in 2014 and was completing end of 2016, when this publication was written. Keywords FAIR · Storage rings · Ion beam facilities · Radioactive beam facilities · Atomic physics · Nuclear physics
1 Introduction In 2012, after very successful operation for more than 20 years at the Manne Siegbahn Laboratory at Stockholm University, the CRYRING ion storage ring [1] was dismantled
This article is part of the Topical Collection on Proceedings of the 10th International Workshop on Application of Lasers and Storage Devices in Atomic Nuclei Research: “Recent Achievements and Future Prospects” (LASER 2016), Pozna´n, Poland, 16–19 May 2016 Edited by Krassimira Marinova, Magdalena Kowalska and Zdzislaw Błaszczak W. Geithner
[email protected] 1
GSI Helmholtzzentrum f¨ur Schwerionenforschung, 64291 Darmstadt, Germany
2
European Spallation Source ESS, 22100 Lund, Sweden
3
Fysikum, Stockholm University, 10691 Stockholm, Sweden
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Fig. 1 Schematic overview of existing GSI accelerators (red), planned FAIR accelerators (yellow) and the location of CRYRING@ESR
and shipped to Darmstadt as Swedish in-kind contribution to FAIR [2]. Initially foreseen as mid to low energy storage-ring for antiprotons and ions as part of the FLAIR experimental complex of FAIR [3] priorities changed and it was decided to install CRYRING at one of the beamlines fed by the existing Experimental Storage Ring ESR [4] - a project which is called CRYRING@ESR. An illustration of the present placement of CRYRING@ESR in relation to the existing and planned accelerators and storage rings is shown in Fig. 1. Despite being planned as decelerator for antiprotons for FLAIR experiments [5], CRYRING@ESR in the present configuration offers a broad range of experimental physics opportunities [6]. Additionally, it represents a large potential as testbench for concepts and instrumentation of
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