The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Toivanen, V. AU - Bellodi, G. AU - Fichera, C. AU - Küchler, D. AU - Lombardi, A.M. AU - Maintrot, M. AU - Michet, A.I. AU - O'Neil, M. AU - Sadovich, S. AU - Tarvainen, O.A. AU - Wenander, F.J.C. ED - Schaa, Volker RW TI - Recent Developments with the GTS-LHC ECR Ion Source at CERN J2 - Proc. of ECRIS2016, Busan, Korea, August 28 - September 1, 2016 C1 - Busan, Korea T2 - International Workshop on ECR Ion Sources T3 - 22 LA - english AB - Linac3 is the first link in the chain of accelerators providing highly charged heavy ion beams for the CERN experimental program. The beams, predominantly lead, are produced with the GTS-LHC 14.5 GHz Electron Cyclotron Resonance (ECR) ion source, operated in afterglow mode. In the framework of the LHC Injector Upgrade program (LIU), several activities have been carried out to improve the GTS-LHC and Linac3 performance, in terms of delivered beam current. The extraction region of the GTS-LHC has been upgraded with redesigned apertures and the addition of an einzel lens, yielding improved Linac3 output. Also, a series of measurements has been performed to study the effects of two-frequency heating on the performance of the GTS-LHC. A Traveling Wave Tube Amplifier (TWTA) with variable frequency and pulse pattern was utilized as a secondary microwave source. The two-frequency effect commonly reported with CW operation of ECR ion sources boosting high charge state ion production was also observed in afterglow mode. Lastly, for studies of metal ion beam production, a dedicated test stand has been assembled to characterize the GTS-LHC resistively heated miniature oven performance. PB - JACoW CP - Geneva, Switzerland SP - 50 EP - 54 KW - ion KW - ion-source KW - operation KW - linac KW - ECR DA - 2016/10 PY - 2016 SN - 978-3-95450-186-1 DO - 10.18429/JACoW-ECRIS2016-WEAO01 UR - http://jacow.org/ecris2016/papers/weao01.pdf ER -