Simulation of DC discharges J. Hammel (Dept EECS, UCB) XOOPIC and XPDP1 simulations of DC discharges have been presented in pieces in various PTSG seminars since the work was undertaken in cooperation with Benet Laboratories. Now the integrated work is presented. As a preliminary presentation prior to my qualifying exam, I will discuss these discharge simulations and theory. The different regions (cathode fall, positive column, negative glow) of the discharge are considered separately as well as all together. As I am preparing for the qualifying exam, questions and observations are most welcome.