• O. Dadoun, I. Chaikovska, P. Lepercq, F. Poirier, A. Variola
  LAL, Orsay
• R. Chehab
  IN2P3 IPNL, Villeurbanne
• L. Rinolfi, A. Vivoli
  CERN, Geneva
• V.M. Strakhovenko
  BINP SB RAS, Novosibirsk
• C. Xu
  IHEP Beijing, Beijing

The CLIC study con­sid­ers the hy­brid source using chan­nel­ing as the base­line for un­po­larised positron pro­duc­tion. The hy­brid source uses a few GeV elec­tron beam im­ping­ing on a crys­tal tung­sten tar­get. With the tung­sten crys­tal ori­ent­ed on its < 111 > axis it re­sults an in­tense, rel­a­tive­ly low en­er­gy pho­ton beam due main­ly to chan­nel­ing ra­di­a­tion. Those pho­tons are then im­ping­ing on an amor­phous tung­sten tar­get pro­duc­ing positrons by e⁺e^- pair cre­ation. The down­stream cap­ture sec­tion is based on an adi­a­bat­ic match­ing de­vice and a 2 GHz pre-in­jec­tor linac. The re­sult­ing stud­ies are pre­sent­ed here.

Slides