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TY - CONF AU - Vieille Grosjean, M. AU - Bakkali Taheri, F. AU - Barros, J. AU - Clarke, C.I. AU - Delerue, N. AU - Doucas, G. AU - Jenzer, S. AU - Konoplev, I.V. AU - Reichold, A. ED - Petit-Jean-Genaz, Christine ED - Arduini, Gianluigi ED - Michel, Peter ED - Schaa, Volker RW TI - Reconstruction of Longitudinal Electrons Bunch Profiles at FACET, SLAC J2 - Proc. of IPAC2014, Dresden, Germany, June 15-20, 2014 C1 - Dresden, Germany T2 - International Particle Accelerator Conference T3 - 5 LA - english AB - The E-203 collaboration is testing a device on FACET at SLAC to measure the longitudinal profile of electron bunches using Smith-Purcell radiation. At FACET the electron bunches have an energy of 20GeV and a duration of a few hundred femtoseconds. Smith-Purcell radiation is emitted when a charged particle passes close to the surface of a metallic grating. The set-up installed in FACET consists in four targets (three gratings and a blank) on a carrousel on one side and eleven pyroelectric detectors on the opposite side, the beam passing between. At the moment, the measurement is averaged over a hundred pulses or more. We have studied the stability of the measurement from pulse to pulse and the resolution of the measure depending on the number of grating used. PB - JACoW CP - Geneva, Switzerland SP - 3453 EP - 3455 KW - radiation KW - background KW - electron KW - detector KW - wakefield DA - 2014/07 PY - 2014 SN - 978-3-95450-132-8 DO - 10.18429/JACoW-IPAC2014-THPME093 UR - http://jacow.org/ipac2014/papers/thpme093.pdf ER -