title: Finite element analyses of a linear-accelerator electron gun.
abstract: Thermo-structural analyses of the Beijing Electron-Positron Collider (BEPCII) linear-accelerator, electron gun, were performed for the gun operating with the cathode at 1000 °C. The gun was modeled in computer aided three-dimensional interactive application for finite element analyses through ANSYS workbench. This was followed by simulations using the SLAC electron beam trajectory program EGUN for beam optics analyses. The simulations were compared with experimental results of the assembly to verify its beam parameters under the same boundary conditions. Simulation and test results were found to be in good agreement and hence confirmed the design parameters under the defined operating temperature. The gun is operating continuously since commissioning without any thermal induced failures for the BEPCII linear accelerator.
authors.affiliation: Centre for High Energy Physics, University of the Punjab, Lahore 45590, Pakistan.
authors.forename: M
authors.initials: M
authors.lastname: Iqbal
authors.affiliation: Department of Mechanical Engineering, Changwon National University, Changwon 641773, South Korea.
authors.forename: A
authors.initials: A
authors.lastname: Wasy
authors.affiliation: Centre for High Energy Physics, University of the Punjab, Lahore 45590, Pakistan.
authors.forename: G U
authors.initials: GU
authors.lastname: Islam
authors.affiliation: Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Z
authors.initials: Z
authors.lastname: Zhou