Cavity Loss Factors For Non-Ultrarelativistic Beams
  Cavity loss factors can be easily computed for ultrarelativistic beams using time-domain codes like MAFIA or ABCI. However, for non-ultrarelativistic beams the problem is more complicated because of difficulties with its numerical formulation in the time domain. We calculate the loss factors of a non-ultrarelativistic bunch and compare results with the relativistic case. 
Sergey S. Kurennoy (Los Alamos National Laboratory)