Present status of the USR project

• Published in: Hyperfine interactions Vol. 194; no. 1-3; pp. 137 - 143
• Main Authors: Welsch, C. P., Harasimowicz, J., Kühnel, K. U., Papash, A., Putignano, M., Schmid, P., Ullrich, J.
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.11.2009
• Subjects: Atomic; Condensed Matter Physics; Hadrons; Heavy Ions; Molecular; Nuclear Physics; Optical and Plasma Physics; Physics; Physics and Astronomy; Surfaces and Interfaces; Thin Films; Storage rings; Antiprotons; Particle accelerators; Beam cooling
• ISSN: 0304-3843; 1572-9540
• DOI: 10.1007/s10751-009-0041-6

The Facility for Low-energy Antiproton and Ion Research (FLAIR) and a large part of the wide physics program decisively rely on new experimental techniques to cool and slow down antiprotons to 20 keV, in particular on the development of an ultra-low energy electrostatic storage ring (USR). The whole research program connected with anti-matter/matter interactions is only feasible if such a machine will be realized. For the USR to fulfil its key role in the FLAIR project, the development of novel and challenging methods and technologies is necessary: the combination of the electrostatic storage mode with a deceleration of the stored ions from 300 keV to 20 keV, electron cooling at all energies in both longitudinal and transverse phase-space, bunching of the stored beam to ultra-short pulses in the nanosecond regime and the development of an in-ring reaction microscope for antiproton-matter rearrangement experiments. In this contribution, the present status of the USR project is summarized and the new machine lattice is presented.