Author: Dutheil, Y.
Paper Title Page
MOPAB177 ELENA Commissioning and Status 598
 
  • C. Carli, M.E. Angoletta, W. Bartmann, L. Bojtár, F. Butin, B. Dupuy, Y. Dutheil, M.A. Fraser, P. Freyermuth, D. Gamba, L.V. Jørgensen, B. Lefort, O. Marqversen, M. McLean, S. Ogur, S. Pasinelli, L. Ponce, G. Tranquille
    CERN, Geneva, Switzerland
  
  The Extra Low EN­ergy An­tipro­ton ring ELENA is a small syn­chro­tron re­cently con­structed and com­mis­sioned to de­cel­er­ate an­tipro­tons in­jected from the An­tipro­ton De­cel­er­a­tor AD with a ki­netic en­ergy of 5.3 MeV down to 100 keV. Con­trolled de­cel­er­a­tion in the syn­chro­tron, equipped with an elec­tron cooler to re­duce losses and gen­er­ate dense bunches, al­lows the ex­per­i­ments, typ­i­cally cap­tur­ing the an­tipro­tons in traps and ma­nip­u­lat­ing them fur­ther, to im­prove the trap­ping ef­fi­ciency by one to two or­ders of mag­ni­tude. Dur­ing 2018, bunches with an en­ergy of 100 keV with pa­ra­me­ters close to nom­i­nal have been demon­strated, and first beams have been pro­vided to an ex­per­i­ment in a new ex­per­i­men­tal zone. The mag­netic trans­fer lines from the AD to the ex­per­i­ments have been re­placed by elec­tro­sta­tic lines from ELENA. Com­mis­sion­ing of the new trans­fer lines and, in par­al­lel, stud­ies to bet­ter un­der­stand the ring with H− beams from a ded­i­cated source, have started in au­tumn 2020. The first 100 keV an­tipro­ton physics run using ELENA will start in late sum­mer 2021.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB177  
About • paper received ※ 18 May 2021       paper accepted ※ 14 June 2021       issue date ※ 23 August 2021  
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