PLT004
LANL, Los Alamos, New Mexico, USA
Northern Illinois University, DeKalb, Illinois, USA
LBNL, Berkeley, California, USA
We report on ab initio three-dimensional coherent synchrotron radiation (CSR) calculations using realistic numbers of simulation particles (~ 6 billion for bunch charges of 1 nC), for different electron bunch aspect ratios. These calculations use the exact Lienard-Weichert fields and are done for electron beam energies of both 100 MeV and 1 GeV. These results confirm many features of the standard one-dimensional CSR model, but also provide some surprises, particularly in regards to noise present in the fields which increases at higher beam energies. These results are compared to those from three-dimensional simulations using CSRtrack and using finite-difference time-domain particle-in-cell techniques.
