RF Commissioning of the SPIRAL2 RFQ in CW Mode and Beyond Nominal Field

Marco Di Giacomo (1) , Michel Desmons (2) , Robin Ferdinand (1) , Hanna Franberg (1) , Philippe Galdemard (2) , Jean-Michel Lagniel (1) , Yves Lussignol (2) , Guillaume Normand (1) , Olivier Piquet (2) , Samuel Sube (2)

1 GANIL - Grand Accélérateur National d'Ions Lourds
2 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers

The SPIRAL2 RFQ was recently successfully commissioned at nominal voltage of 114 kV, corresponding to 1.65 Kilpatrick factor. The paper describes limitations of the RFQ main subsystems, cavity conditioning difficulties, as well as changes implemented in the LLRF and automatic procedures to simplify turn on and operation of the whole system.

Mots clés: cavity; LLRF; rfq; controls; vacuum

Domaines: Physique des accélérateurs [physics.acc-ph]

Marco Di Giacomo, Michel Desmons, Robin Ferdinand, Hanna Franberg, Philippe Galdemard, et al.. RF Commissioning of the SPIRAL2 RFQ in CW Mode and Beyond Nominal Field. 10th International Particle Accelerator Conference, May 2019, Melbourne, Australia. pp.WEPRB007, ⟨10.18429/JACoW-IPAC2019-WEPRB007⟩. ⟨hal-02198345⟩