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 DOCUMENT METADATA SLAC Publication: SLAC-PUB-15952 SLAC Release Date: May 13, 2014 Observation of a Remarkable Deflection of Multi-GeV Electron Beams by a Thin Crystal Wienands, Ulrich. We report on an experiment performing channeling and volume reflection of a high-energy electron beam using a quasimosaic Si(111) crystal at the ESTB at SLAC. The experiment used beams of 3.35~GeV and 6.3~GeV. In channeling orientation, deflections of the beam of 400~$\mu$rad with about 22\% efficiency were observed, while in volume-reflection orientation, deflection of the beam by 120~$\mu$rad at 3.35~GeV and by 80~$\mu$rad at 6.3~GeV was observed with $86-95$\% efficiency. Quantitative measure... Show Full Abstract We report on an experiment performing channeling and volume reflection of a high-energy electron beam using a quasimosaic Si(111) crystal at the ESTB at SLAC. The experiment used beams of 3.35~GeV and 6.3~GeV. In channeling orientation, deflections of the beam of 400~$\mu$rad with about 22\% efficiency were observed, while in volume-reflection orientation, deflection of the beam by 120~$\mu$rad at 3.35~GeV and by 80~$\mu$rad at 6.3~GeV was observed with $86-95$\% efficiency. Quantitative measurements of channeling efficiency, surface transmission and dechanneling length were taken. These are the first quantitative measurements of channeling and volume reflection using a primary beam of multi-GeV electrons. Show Partial Abstract Download File: SLAC-PUB-15952.PDF Interest Categories: Accelerator Physics, Material Sciences, X-Ray Free Electron Laser » View SLAC's contact: uli in the SLAC Directory