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Quadrupole Lens

Application ID: 829


Just like optical lenses focus light, electric and magnetic lenses can be used for focusing beams of charged particles.

This COMSOL Multiphysics model shows the path of B5+ ions passing through a focusing system of three magnetic quadrupoles. Each of the quadropoles focus the beam of ions in one transverse direction and defocus it in the other. The net effect on the beam after traveling through the system is focusing in all directions. Particle tracing of the ions is used to investigate the focusing effect of the quadropole.

This model is included as an example in the following products:

COMSOL Multiphysics®

The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Descrição dos Produtos and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.