Author: Muto, T.
Paper Title Page
Development of Beam Position Monitor Using Cherenkov Diffraction Radiation  
  • K. Nanbu, H. Hama, F. Hinode, S. Kashiwagi, T. Muto
    Tohoku University, Research Center for Electron Photon Science, Sendai, Japan
  Recently laser-plasma accelerators (LPAs) have attracted a lot of attention and have been developed actively toward practical applications worldwide. LPAs can accelerate electrons to high energy within a very short distance. However, its beam stability is still insufficient as compared with conventional RF accelerators. In addition, beam repetition rate is very low, consequently a beam pulse has to be diagnosed simultaneously with application. Cherenkov Diffraction Radiation (ChDR), which is the radiation generated when electrons pass near the dielectric material, will offer non-destructive beam diagnostics for LPAs. A basic experimental study on ChDR for developing a novel beam position monitor has been conducted at test accelerator facility, t-ACTS, in Tohoku University. We have investigated characteristics of ChDR from a hollow radiator and an intensity distribution of ChDR with respect to the electron beam position.  
slides icon Slides WEAO03 [2.955 MB]  
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