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Ultra-low energy storage ring at FLAIR

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Abstract

The Ultra-low energy electrostatic Storage Ring (USR) at the future Facility for Low-energy Antiproton and Ion Research (FLAIR) will provide cooled beams of antiprotons in the energy range between 300 keV down to 20 keV and possibly less. The USR has been completely redesigned over the past three years. The ring structure is based on a “split achromat” lattice that allows in-ring experiments with internal gas jet target. Beam parameters might be adjusted in a wide range: from very short pulses in the nanosecond regime to a Coasting beam. In addition, a combined fast and slow extraction scheme was developed that allows for providing external experiments with cooled beams of different time structure. Detailed investigations of the USR, including studies into the ring’s long term beam dynamics, life time, equilibrium momentum spread and equilibrium lateral spread during collisions with an internal target were carried out. New tools and beam handling techniques for diagnostics of ultra-low energy ions at beam intensities less than 106 were developed by the QUASAR Group. In this paper, progress on the USR project will be presented with an emphasis on the expected beam parameters available to the experiments at FLAIR.

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References

  1. Welsch, C.P., et al.: FLAIR – a facility for low-energy antiproton and ion research at GSI. Hyperfine Interact. 172(1–3), 71–80 (2007)

    ADS  Google Scholar 

  2. Welsch, C.P., et al.: Exploring sub-femtosecond correlated dynamics with an ultra-low energy electrostatic storage ring. AIP Conf. Proc. 796, 266–271 (2005)

    Article  ADS  Google Scholar 

  3. Welsch, C.P., et al.: An ultra-low-energy storage ring at FLAIR. NIM A 546, 405–417 (2005)

    Article  ADS  Google Scholar 

  4. Papash, A., Welsch, C.P.: An update of the USR lattice: towards a true multi-user experimental facility. In: Proc. Part. Acc. Conf., Vancouver, Canada (2009)

  5. Welsch, C.P., et al.: Ultralow energy storage ring at the facility for antiproton and ion research: lattice design, operating modes, and beam diagnostics. Phys. Rev. ST-AB (2010, submitted)

  6. Welsch, C.P.: http://www.quasar-group.org. Accessed 15 Nov 2011

  7. Papash, A.I., Welsch, C.P.: On the possibility of realizing shortest bunches in low-energy storage rings. Phys. Part. Nucl. Lett. 6(3), 216–226 (2009)

    Article  Google Scholar 

  8. Schmid, P., et al.: Preliminary design of an extraction scheme for the USR. Hyperfine Interact. 194(1–3), 183–187 (2009)

    Article  ADS  Google Scholar 

  9. Papash, A.I., Welsch, C.P.: Ultra-short pulse operation mode of the ultra-low energy storage ring. Nucl. Instr. Meth. A 620, 128–141 (2010)

    Article  ADS  Google Scholar 

  10. Smirnov, A.V., Welsch, C.P.: Cooling rates of the USR as calculated with BETACOOL. AIP Conf. Proc. 821, 397–401 (2006)

    Article  ADS  Google Scholar 

  11. Orlov, D.A., et al.: Appl. Phys. Lett. 78, 2721–2724 (2001)

    Article  ADS  Google Scholar 

  12. Orlov, D.A., et al.: Ultra-cold electron beams for the Heidelberg TSR and CSR. AIP Conf. Proc. 821, 489 (2005)

    Google Scholar 

  13. Shornikov, A., et al.: Ultra-low energy electron cooler for the Heidelberg CSR. Proc. COOL, Lanzhou, China (2009)

  14. Garoby, R., Hancock, S., Vallet, J.-L.: Demonstration of bunch triple splitting in the CERN PS. CERN/PS 2000-038 (RF)

  15. Karamisheva, G.A., Papash, A.I., Welsch, C.P.: Study of slow and fast extraction for the ultralow energy storage ring. Phys. Part. Nucl. Lett. 8(1), 50–60 (2011)

    Article  Google Scholar 

  16. Smirnov, A.: http://betacool.jinr.ru. Accessed 15 Nov 2011

  17. Hinterberger, F., Prasuhn, D.: Analysis of internal target effects in light ion storage rings. Nucl. Instr. Meth. A 279, 413–422 (1989)

    Article  ADS  Google Scholar 

  18. Harasimowicz, J., Welsch, C.P.: Beam instrumentation for the future ultra-low energy storage ring at FLAIR. Hyperfine Interact. 194(1–3), 177–181 (2009)

    Article  ADS  Google Scholar 

  19. Harasimowicz, J., et al.: Beam diagnostics for the USR. In: Proc. Part. Acc. Conf., Vancouver, Canada (2009)

  20. Harasimowicz, J., Welsch, C.P.: Optimisation studies of a resonant capacitive pick-up for beam position monitoring of low intensity, low velocity antiproton beams at FLAIR. In: Proc. DIPAC’09, Basel, Switzerland, pp. 300–302 (2009)

  21. Sieber, T., et al.: A beam diagnostics system for the heidelberg cryogenic storage ring CSR. In: Proc. Europ. Part. Acc. Conf., Edinburgh, Scotland (2006)

  22. Vogel, M., et al.: Scintillation light produced by low-energy beams of highly-charged ions. Nucl. Instrum. Meth. B 263(2), 518–522 (2007)

    Article  ADS  Google Scholar 

  23. Kühnel, K.-U., et al.: A novel beam profile monitor based on a supersonic gas jet. In: Proc. Europ. Part. Acc. Conf., Genoa, Italy (2008)

  24. Putignano, M., et al.: A fast, low perturbation ionization beam profile monitor based on a gas-jet curtain for the ultra low energy storage ring. Hyperfine Interact. 194(1–3), 189–193 (2009)

    Article  ADS  Google Scholar 

  25. Honma, T., et al.: Design and performance of a nondestructive beam-profile monitor utilizing charge-division method at HIMAC. Nucl. Instr. Meth. A 490(3), 435–443 (2002)

    Article  Google Scholar 

  26. Hashimoto, Y., et al.: Oxygen gas-sheet beam profile monitor for the synchrotron and storage ring. Nucl. Instr. Meth. A 527(3), 289–300 (2004)

    Article  ADS  Google Scholar 

  27. Putignano, M., et al.: Design of a Nozzle-Skimmer system for a low perturbation ionization beam profile monitor. In: Proc. DIPAC Workshop, Basel, Switzerland (2009)

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Correspondence to Carsten P. Welsch.

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Welsch, C.P., Papash, A.I., Gorda, O. et al. Ultra-low energy storage ring at FLAIR. Hyperfine Interact 213, 205–215 (2012). https://doi.org/10.1007/s10751-011-0460-z

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  • DOI: https://doi.org/10.1007/s10751-011-0460-z

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