|
- A. Ferrari, A. Rydberg
UUS, Uppsala University, Sweden
- F. Caspers, R. Corsini, L. Rinolfi, F. Tecker
CERN, Geneva, Switzerland
- P. Royer
UNIL, Université de Lausanne, Switzerland
|
|
|
In the framework of the CLIC RF power source studies, the feasibility of
the bunch train combination by injection with RF deflectors into an
isochronous ring has been successfully demonstrated in the preliminary
phase of CTF3. In order to monitor this scheme, a new method based on
beam frequency spectrum analysis was experimented. For this purpose, a
coaxial pick-up and its detection system were designed and mounted in the
CTF3 ring, in order to allow comparison of the amplitudes of five
harmonics of the fundamental beam frequency (3 GHz) while combining bunch
trains. The commissioning of the monitor was a successful proof of
principle for this new method, despite the short length of the bunch
trains and the presence of parasitic signals associated to high-order
wave guide modes propagating with the beam inside the pipe.
|
|