![The Differential Algebra Based Multiple Level Fast Multipole Algorithm for 3D Space Charge Field Calculation and Photoemission Simulation]()
The Differential Algebra Based Multiple Level Fast Multipole Algorithm for 3D Space Charge Field Calculation and Photoemission SimulationZhang, He; Portman, Jenni; Tao, Zhensheng; Duxbury, Phillip; Ruan, Chong-Yu; Makino, Kyoko; Berz, Martin · Microscopy and Microanalysis · 2015