XPDC2-R/spl theta/: a two dimensional electrostatic PIC code

Summary form only given, as follows. A two dimensional particle-in-cell simulation has been written using a cylindrical R-/spl theta/ Poisson field solver. The simulator is capable of simulating coaxial structures with and without a central conductor. In the presence of a central conductor, an external circuit consisting of V,I sources and R-L-C elements, can be self-consistently simulated with the plasma equations. The simulation model includes the PIC-MCC package to model collisions between charged particles and neutral species. The field solve in the /spl theta/ direction can be done using finite-difference or Fourier transforms. The simulator is currently being used to study the Diocotron and Kelvin-Helmholtz instabilities. The ability to generate movies to study time-varying phenomenon will be discussed. In addition, comparisons with theory and 1D models will also be presented.