Author: Horn, K.P.
Paper Title Page
FR1A05 Development of Pulsed Gas Strippers for Intense Beams of Heavy and Intermediate Mass Ions 982
 
  • P. Gerhard, W.A. Barth, M. Bevcic, Ch.E. Düllmann, L. Groening, K.P. Horn, E. Jäger, J. Khuyagbaatar, J. Krier, M.T. Maier, P. Scharrer, A. Yakushev
    GSI, Darmstadt, Germany
  • W.A. Barth, Ch.E. Düllmann, J. Khuyagbaatar
    HIM, Mainz, Germany
  • Ch.E. Düllmann
    Johannes Gutenberg University Mainz, Institut of Nuclear Chemistry, Mainz, Germany
  
  The GSI UNI­LAC to­gether with SIS18 will serve as in­jec­tor for the fu­ture FAIR. A mod­i­fied 1.4~MeV/u gas strip­per setup has been de­vel­oped, aim­ing at an in­creased yield into the par­tic­u­lar de­sired charge state. The setup de­liv­ers short pulses of high gas den­sity in syn­chro­niza­tion with the beam pulse. This pro­vides a higher gas den­sity. Dif­fer­ent gases as strip­ping tar­gets were tested. Mea­sure­ments with var­i­ous iso­topes and gas den­si­ties were con­ducted to in­ves­ti­gate the strip­ping prop­er­ties. High in­ten­sity beams of 238U4+ were suc­cess­fully stripped using hy­dro­gen as strip­ping gas. The strip­ping ef­fi­ciency was sig­nif­i­cantly in­creased while the beam qual­ity re­mained suit­able. The new strip­per setup and major re­sults achieved dur­ing the de­vel­op­ment are pre­sented. Prob­lems with the fast valves arose while they were used for a longer du­ra­tion. An­other re­vi­sion of the setup took place to ex­change the valves. In par­al­lel, the in­stal­la­tion of the re­quired in­fra­struc­ture for reg­u­lar op­er­a­tion of the gas strip­per using hy­dro­gen was planned.  
slides icon Slides FR1A05 [10.013 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-FR1A05  
About • paper received ※ 12 September 2018       paper accepted ※ 20 September 2018       issue date ※ 18 January 2019  
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