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TY - UNPB AU - Mazzoni, S. AU - Bergamaschi, M. AU - Corsini, R. AU - Curcio, A. AU - Davut, C. AU - Farabolini, W. AU - Fedorov, K.V. AU - Gamba, D. AU - Gardelle, J. AU - Garolfi, L. AU - Gilardi, A. AU - Karataev, P. AU - Kieffer, R. AU - Krupa, M. AU - Lefèvre, T. AU - Lekomtsev, K. AU - Pacey, T.H. AU - Pakuza, C. AU - Potylitsyn, A. AU - Saveliev, Y.M. AU - Schloegelhofer, A. AU - Senes, E. AU - Wendt, M. AU - Xia, G.X. ED - Liu, Lin ED - Byrd, John M. ED - Neuenschwander, Regis T. ED - Picoreti, Renan ED - Schaa, Volker R. W. TI - Non Invasive Bunch Length Measurements Exploiting Cherenkov Diffraction Radiation J2 - Proc. of IPAC2021, Campinas, SP, Brazil, 24-28 May 2021 CY - Campinas, SP, Brazil T2 - International Particle Accelerator Conference T3 - 12 LA - english AB - Cherenkov Diffraction Radiation (ChDR) refers to the emission of broadband electromagnetic radiation which occurs when a charged particle propagates at relativistic speed in the vicinity of a dielectric material. At variance with the better-known Cherenkov radiation, ChDR is a non-invasive technique, that is the particle beam does not impinge on the dielectric radiator. ChDR also possesses other interesting features like a relatively high light yield, a broadband spectrum of emission and the emission at a relatively large angle with respect to the beam trajectory. Due to its potential, CERN initiated over the last few years several studies on ChDR-based diagnostics techniques. In this contribution I will focus on the exploitation of ChDR for non-invasive bunch length measurement, from proof of principle tests performed at the CLEAR facility at CERN and CLARA at Daresbury laboratory to current developments for experiments and facilities such as AWAKE and FCC PB - JACoW Publishing CP - Geneva, Switzerland ER -