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Journal Article

Investigation of the heavy-ion mode in the FAIR High Energy Storage Ring


Litvinov,  Yuri A.
GSI Helmholtzzentrum für Schwerionenforschung GmbH;
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Kovalenko, O., Dolinskii, O., Litvinov, Y. A., Maier, R., Prasuhn, D., & Stöhlker, T. (2015). Investigation of the heavy-ion mode in the FAIR High Energy Storage Ring. Physica Scripta T, 2015(T166): 014042. doi:10.1088/0031-8949/2015/T166/014042.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-3084-7
High energy storage ring (HESR) as a part of the future accelerator facility FAIR (Facility for Antiproton and Ion Research) will serve for a variety of internal target experiments with high-energy stored heavy ions (SPARC collaboration). Bare uranium is planned to be used as a primary beam. Since a storage time in some cases may be significant—up to half an hour—it is important to examine the high-order effects in the long-term beam dynamics. A new ion optics specifically for the heavy ion mode of the HESR is developed and is discussed in this paper. The subjects of an optics design, tune working point and a dynamic aperture are addressed. For that purpose nonlinear beam dynamics simulations are carried out. Also a flexibility of the HESR ion optical lattice is verified with regard to various experimental setups. Specifically, due to charge exchange reactions in the internal target, secondary beams, such as hydrogen-like and helium-like uranium ions, will be produced. Thus the possibility of separation of these secondary ions and the primary U92+ beam is presented with different internal target locations.