Author: Fernandez-Cañoto, D.
Paper Title Page
WEPC023 Beam Dynamics Simulations for the ESS-Bilbao H− Ion Source 2052
 
  • I. Bustinduy, F.J. Bermejo, D. Fernandez-Cañoto, J.L. Munoz, I. Rodríguez
    ESS Bilbao, Bilbao, Spain
  • M. Eguiraun, J. Feuchtwanger, Z. Izaola
    ESS-Bilbao, Zamudio, Spain
  
  Sim­u­la­tions are per­formed for the Ion Source Test Stand (ITUR) of the ESS-Bil­bao re­search ac­cel­er­a­tor fa­cil­i­ty. The beam dy­nam­ics is in­ves­ti­gat­ed as a func­tion of the ex­trac­tion volt­ages, the ion cur­rent, and the in­cli­na­tion angle of the ion source. The ITUR Pen­ning H− ion source has the plas­ma aper­ture plate and ex­trac­tion elec­trode in­clined a cer­tain angle with re­spect to the ver­ti­cal axis to com­pen­sate for the Pen­ning mag­nets field. The neg­a­tive charged par­ti­cles are ex­tract­ed through a rect­an­gu­lar slit of 10×6 mm2. The ex­trac­tion sys­tem is main­ly com­posed of two de­vices, a rect­an­gu­lar ex­trac­tion elec­trode and a re­frig­er­at­ed trum­pet shaped de­vice act­ing as an Einzel lens to focus the beam, and also, as a trap for neu­tral ce­sium atoms ex­it­ing from the source. Re­sults are cal­cu­lat­ed and an­a­lyzed at the DC Cur­rent Trans­former and pep­per­pot po­si­tions lo­cat­ed at 245 mm and 882 mm from the ion source.