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TY - CONF AU - Lillestøl, R.L. AU - Adli, E. AU - Aftab, N. AU - Corsini, R. AU - Döbert, S. AU - Farabolini, W. AU - Grudiev, A. AU - Javeed, S. AU - Pfingstner, J. AU - Wuensch, W. ED - Petit-Jean-Genaz, Christine ED - Kim, Dong Eon ED - Kim, Kyung Sook ED - Ko, In Soo ED - Schaa, Volker RW TI - Status of Wakefield Monitor Experiments at the CLIC Test Facility J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016 C1 - Busan, Korea T2 - International Particle Accelerator Conference T3 - 7 LA - english AB - For the very low emittance beams in CLIC, it is vital to mitigate emittance growth which leads to reduced luminosity in the detectors. One factor that leads to emittance growth is transverse wakefields in the accelerating structures. In order to combat this the structures must be aligned with a precision of a few um. For achieving this tolerance, accelerating structures are equipped with wakefield monitors that measure higher-order dipole modes excited by the beam when offset from the structure axis. We report on such measurements, performed using prototype CLIC accelerating structures which are part of the module installed in the CLIC Test Facility 3 (CTF3) at CERN. Measurements with and without the drive beam that feeds rf power to the structures are compared. Improvements to the experimental setup are discussed, and finally remaining measurements that should be performed before the completion of the program are summarized. PB - JACoW CP - Geneva, Switzerland SP - 2099 EP - 2101 KW - detector KW - emittance KW - pick-up KW - experiment KW - electron DA - 2016/06 PY - 2016 SN - 978-3-95450-147-2 DO - 10.18429/JACoW-IPAC2016-WEOBB02 UR - http://jacow.org/ipac2016/papers/weobb02.pdf ER -