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Conference Paper

An Update of the USR Lattice: Towards a True Multi-User Experimental Facility

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Papash,  A. I.
Carsten Welsch - Helmholtz University Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Welsch,  C. P.
Carsten Welsch - Helmholtz University Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Papash, A. I., & Welsch, C. P. (2009). An Update of the USR Lattice: Towards a True Multi-User Experimental Facility. Joint Accelerator Conferences Website (JACoW), PAC09: FR5PFP013, 4335-4337.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0011-77EE-4
Abstract
In the future Facility for Low-energy Antiproton and Ion Research (FLAIR) at GSI, the Ultra-low energy electrostatic Storage Ring (USR) will provide cooled beams of antiprotons and possibly also highly charged ions down to energies of 20 keV/A. A large variety of the envisaged experiments demands a very flexible ring lattice to provide a beam with variable cross section, shape and time structure, ranging from ultra-short pulses to coasting beams. The preliminary design of the USR worked out in 2005 was not optimized in this respect and had to be reconsidered. In this contribution we present the final layout of the USR with a focus on its “split-achromat” geometry, the combined fast/slow extraction, and show the different modes of operation required for electron cooling, internal experiments, or beam extraction. We finally give a summary of the machine parameters and the layout of the optical elements.