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TY - CONF AU - Simakov, E.I. AU - Arsenyev, S. AU - Buechler, C.E. AU - Conde, M.E. AU - Edwards, R.L. AU - Ha, G. AU - Jing, C.-J. AU - Power, J.G. AU - Romero, W.P. AU - Wisniewski, E.E. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Experimental Study of Wakefields in an X-band Photonic Band Gap Accelerating Structure J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - We designed an experiment to conduct a detailed investigation of higher order mode spectrum in a room-temperature traveling-wave photonic band gap (PBG) accelerating structure at 11.7 GHz. It has been long recognized that PBG structures have great potential in reducing long-range wakefields in accelerators. The first ever demonstration of acceleration in room-temperature PBG structures was conducted at MIT in 2005. Since then, the importance of that device has been recognized by many research institutions. However, the full experimental characterization of the wakefield spectrum in a beam test has not been performed to date. The Argonne Wakefield Accelerator (AWA) test facility at the Argonne National Laboratory represents a perfect site where this evaluation could be conducted with a single high charge electron bunch and with a train of bunches. Here we describe fabrication and tuning of PBG cells, the final cold-test of the traveling-wave accelerating structure, and the results of the beam testing at AWA. PB - JACoW CP - Geneva, Switzerland SP - 2689 EP - 2691 KW - wakefield KW - HOM KW - higher-order-mode KW - coupling KW - electron DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-WEPJE008 UR - http://jacow.org/ipac2015/papers/wepje008.pdf ER -