Feasibility of backward diffraction radiation for non-destructive   diagnostics of relativistic charged particle beams
  The characteristics of backward diffraction radiation (BDR), i.e. radiation of the charged particle passing through a slit in the tilted screen, has been considered. The technique for non-destructive beam diagnostics based on the measurements of BDR yield for different tilted angles (theta-scan) is suggested. 
A.P.Potylitsyn, N.A.Potylitsyna