• J.H. Han, H.C. Huang
  Diamond, Oxfordshire

To precisely control the electron beam parameters from a photocathode RF gun, the RF field distribution during real RF operation must be known. During RF operation, the RF field induces local RF heating on the cavity surface. This non-uniform temperature distribution may deform the cavity and affect the output beam parameters. Here, we model a copper RF gun cavity and calculate the temperature distribution and the stress over the cavity surface. Then, the beam parameter change caused by the cavity deformation is simulated.