J. Petillo, K. Eppley, D. Panagos, E. Nelson, N. Dionne, J. Deford, B. Held, L. Chernyakova, J. Burdette, X. Zhai, M. Cattelino, K. Nguyen, B. Levush
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Application of the 2D/3D MICHELLE code to electron gun and collector modeling
The focus of the development program is to combine modern finite element techniques with improved physics models. The code employs a conformal mesh, including both structured and unstructured mesh architectures for meshing flexibility, along with a new method for accurate, efficient particle tracking. New particle emission models for thermionic beam representation are included that support primary emission, and secondary emission is handled with an advanced model.