Improved Space Charge Modeling for Simulation and Design of Photoinjectors

Robert H. Jackson, Thuc Bui, John Verboncoeur

Calabazas Creek Research, Inc.

关键词: Charge Particle Analysis;    Space Charge;    43 Particle Accelerators Photoinjector;    Simulation;    Photoinjector;   

DOI  :  10.2172/1029945
RP-ID  :  001
RP-ID  :  SC0001970
RP-ID  :  1029945

美国|英语

来源: UNT Digital Library

【 摘 要 】

Photoinjectors in advanced high-energy accelerators reduce beam energy spreads and enhance undulator photon fluxes. Photoinjector design is difficult because of the substantial differences in time and spatial scales. This Phase I program explored an innovative technique, the local Taylor polynomial (LTP) formulation, for improving finite difference analysis of photoinjectors. This included improved weighting techniques, systematic formula for high order interpolation and electric field computation, and improved handling of space charge. The Phase I program demonstrated that the approach was powerful, accurate, and efficient. It handles space charge gradients better than currently available technology.