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van de Walle, J.

Paper Title Page
THPEC039 Handling of Beam Impurities in Gamma-spectroscopy Experiments at REX-ISOLDE (CERN) 4143
 
  • T. Bloch, C. Bauer, J. Leske, N. Pietralla
    TU Darmstadt, Darmstadt
  • J. van de Walle
    KVI, Groningen
  
 

The REX-ISOL­DE fa­cil­i­ty at CERN de­liv­ers a great va­ri­ety of ra­dioac­tive ion beams with en­er­gies up to 3.0 MeV/u and there­fore al­lows nu­cle­ar struc­ture physics ex­per­i­ments far from sta­bil­i­ty. A cru­cial point for the ex­per­i­men­tal­ist is the knowl­edge of pos­si­ble un­want­ed beam con­tam­i­na­tions, ei­ther from the bunch­ing and charge-breed­ing pro­ce­dure (resid­u­al gas ions) or di­rect­ly from the ion-pro­duc­tion pro­cess (iso­bar­ic con­tam­i­nants). The sources of these con­tam­i­na­tions will be dis­cussed, as well as pos­si­ble ways of elim­i­na­tion dur­ing the post-ac­cel­er­a­tion. Meth­ods to anal­yse the beam com­po­si­tion in the rel­e­vant en­er­gy range will be pre­sent­ed with an em­pha­sis on the ex­per­i­men­tal chal­lenges in Gam­ma-spec­troscopy ex­per­i­ments and data anal­y­sis.