PT Journal
AU Senes, E
   Argyropoulos, T
   Tecker, F
   Wuensch, W
TI Beam-loading effect on breakdown rate in high-gradient accelerating cavities: An experiment at the Compact Linear Collider Test Facility at CERN
SO Physical Review Accelerators and Beams
JI Phys. Rev. Accel. Beams
PY 2018
BP 102001
EP 8pp
VL 21
IS 10
DI 10.1103/PhysRevAccelBeams.21.102001
LA English
AB Radio frequency breakdown rate is a crucial performance parameter that ensures that the design luminosity is achieved in the CLIC linear collider. The required low breakdown rate for CLIC, of the order of 10(-7) breakdown pulse(-1) m(-1), has been demonstrated in a number of 12 GHz CLIC prototype structures at gradients in excess of the design 100 MV/m accelerating gradient, however without the presence of the accelerated beam and associated beam loading. The beam loading induced by the approximately 1 A CLIC main beam significantly modifies the field distribution inside the structures, and the effect on breakdown rate is potentially significant so needs to be determined. A dedicated experiment has been carried out in the CLIC Test Facility CTF3 to measure this effect, and the results are presented.
ER