Practical 3D collector design using MICHELLE

In the quest for increased space TWT efficiency a practical 3D collector design program has been sought after for many years with little success. To be a practical design tool, the code must be accurate, fast and relatively easy to use. With the release of the MICHELLE code, that tool may finally have been found. MICHELLE is a general purpose, 3D, charged particle, tracking code developed as part of the US Office of Naval Research (ONR) Modeling and Simulation Project. Applications of interest, to the TWT industry, for MICHELLE include electron gun and collector design and analysis. This paper will describe the Boeing EDD experience using MICHELLE as a collector design tool, and initial results obtained with the code.