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- W849676863 abstract "First, energy variation down to 300 keV is done in a magnetic storage ring (LSR), before the final deceleration in the USR. Aiming to be a true multi user facility, the ring should provide an antiproton beam that can be used by various in-ring and external experiments “at the same time”, i.e. from bunch to bunch, the different experiments may be served at different energies of the antiprotons, different intensities and beam characteristics (bunched, slowly extracted quasi-dc operation). The Future Accelerator Facility for Beams of Ions and Antiprotons at Darmstadt will produce the highest flux of antiprotons in the world. So far it is foreseen to accelerate the antiprotons to high energies (3-15 GeV) for meson spectroscopy and other nuclear and particle physics experiments in the HESR (High Energy Storage Ring). Within the planned complex of storage rings, it is possible to decelerate the antiprotons to about 30 MeV kinetic energy, opening up the possibility to create low energy antiprotons. In the proposed FLAIR facility [1] the antiprotons shall be slowed down in a last step from 300 keV to 20 keV in an ultra-low energy electrostatic storage ring (USR) for various in-ring experiments as well as for their efficient injection into traps. In this energy range especially if one thinks about realizing a real multipurpose facility with not only antiprotons, but also various highly-charged radioactive ions to be stored and investigated - electrostatic storage rings have clear advantages compared to their magnetic counterparts. In case one envisions to even approach the eV range, electrostatic machines are the only possible choice. This contribution presents the layout and design parameters of the USR. High luminosity, low emittance and low momentum spread are some of the main characteristics of the electron-cooled antiproton beam that shall be achieved and that the various experiments may take advantage of. Some experience is available on the international scene and electrostatic storage rings in Denmark [2] and Japan [3] could already prove the benefits of these machines for a variety of research areas. Various geometrical shapes can be realized [4], where the size of the machine is mainly determined by the size of the electron cooler and the experimental sections." @default.
- W849676863 created "2016-06-24" @default.
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- W849676863 date "2004-01-01" @default.
- W849676863 modified "2023-09-23" @default.
- W849676863 title "ULTRA-LOW ENERGY ANTIPROTONS AT FLAIR" @default.
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