Simulations of Gaussian electron guns for RHIC electron lens

[摘要] Simulations of two versions of the electron gun for RHIC electron lens are presented. The electron guns have to generate an electron beam with Gaussian radial profile of the electron beam density. To achieve the Gaussian electron emission profile on the cathode we used a combination of the gun electrodes and shaping of the cathode surface. Dependence of electron gun performance parameters on the geometry of electrodes and the margins for electrodes positioning are presented.

[发布日期] 2014-02-28

[学科分类] 核物理和高能物理

[关键词] CATHODES;BROOKHAVEN RHIC;ELECTRON BEAMS;ELECTRON DENSITY;ELECTRON GUNS;ELECTROSTATIC LENSES;SIMULATION;ELECTRON EMISSION;SHAPE;PERFORMANCE;BEAM PROFILE;POSITIONING;SURFACES;TOLERANCE;ELECTRIC FIELDS;SPATIAL DISTRIBUTION Relativistic Heavy Ion Collider