First observation of coherent Smith-Purcell radiation in the highly relativistic regime |
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Authors: | V. Blackmore C. Perry |
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Affiliation: | a The John Adams Institute, Department of Physics, Denys Wilkinson Building, University of Oxford, Oxford, UK OX1 3RH, UK b Physics Centre, University of Essex, Colchester, UK |
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Abstract: | Coherent Smith-Purcell (SP) radiation has already been applied as a technique to measure the longitudinal bunch profile of charged particle beams in the low to intermediate energy range. However, with the advent of the International Linear Collider and the need to develop a non-invasive method of measuring the bunch profile, it has become necessary to carry out experiments at the highest possible energies. The paper summarizes some recent work at intermediate (45 MeV) energy and presents the first observations of SP radiation from a 28.5 GeV beam at SLAC. The experimental challenges and future possibilities of coherent Smith-Purcell radiation as a longitudinal bunch profile diagnostic tool are also discussed. |
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Keywords: | 41.60.&minus m 41.85.Ew 41.75.Ht |
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