Diffraction Radiation as ultra-high intensity electron beams non-incepting diagnostics

Diffraction Radiation is receiving even more consideration as a non-intercepting diagnostic tool. On the superconducting linac at Flash diagnostic instruments based on D R are routinely used, and new developments are continuously experimented. The analysis of the coherent part of D R spectrum allows the measurement of the longitudinal charge distribution in the brunch, while the incoherent emission at optical wavelengths can give information on the transverse beam size.