Abstract
Abstract
This work presents an optimization study on the RF cavity
geometry design and beam dynamics of an electron injector linac for
the Korea Fourth-Generation Storage Ring (Korea-4GSR). It is
challenging to achieve an optimal design for a linac system due to
the nonlinear nature of accelerator system and the associated beam
dynamics with numerous knobs to control. To address this challenge,
we employed the Multi-Objective Genetic Algorithm (MOGA) for
efficient optimization. Through the utilization of MOGA, we
effectively optimized the electron linac for the Korea-4GSR. The
optimized design yielded a horizontal normalized rms emittance of
approximately 3.79 mm-mrad and an energy spread of about
307.37 keV, which met design requirements of the Korea-4GSR. This
approach facilitated the design of an electron linac tailored for
the Korea-4GSR with enhanced efficiency and effectiveness.