DEVELOPMENT OF PERSONAL-COMPUTER-BASED HIGH EFFICIENT TECHNIQUE FOR ELECTRIC-FIELD OPTIMIZATION

We have already developed a personal-computer-based electric field cal culation system combined with CAD (Computer-Aided Design); the system is referred to as ''CADEF'' (CAD with Electric Field Analysis). This s ystem utilizes a charge simulation method, and enables us to realize t he automatic calculation of the electric field. This paper describes t he results of the newly developed electric field optimizing process wh ich is added to ''CADEF''. To achieve a more efficient optimizing rout ine, we introduce a new algorithm to determine how to arrange the opti mization charges into the region to be optimized; both positive and ne gative charges are assigned at the same time in the calculation step t o enhance its convergence and the variety of electrode-contour modific ation.