RF RESULTS AND BEAM DYNAMICS SIMULATIONS OF A PROTOTYPE S-BAND PHOTOCATHODE GUN

We are building a BNL/SLAC/UCLA type S-band photocathode gun as a photoinjector to a 30 MeV electron linac for FEL applications. We present results of RF simulations using SUPERFISH and GDFIDL, which agree reasonably well with cold-test results. We also report results of some beam dynamics simulations using PARMELA.