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From electron lithography and ion sources to field-tip emitters for flat-screen displays, the modelling of charged-particle devices is critical in ensuring optimum efficiency and performance. This webinar discusses the modelling of space-charge-limited emission and particle tracking using the Opera software suite.

Simulation software lets designers characterize their devices simply and effectively. Coupled multiphysics simulations allow the study of beam charging and current flow in imperfect dielectrics and heating effects from both primary and secondary emission. Advanced interactions can be included in simulations, such as the ionization of a background gas to form plasma ion beams.

We will explore a variety of systems, from simple thermal electron sources to space-charge-compensated ion beams and multispecies plasmas.

Date: Wednesday 28 March 2012

Time: 3.00 p.m. BST / 10.00 a.m. EDT

Speaker: Steve Malton, senior applications engineer, Cobham Technical Services
Steve Malton received his Master's in physics from the University of Oxford in 2003 and a PhD in accelerator physics from UCL in 2007. He has worked in R&D for particle-accelerator diagnostics as well as the simulation of accelerator components and beamlines. He joined Cobham Technical Services in 2009, where he specializes in scientific applications of the Opera software.

Speaker: Stephen M Elliott, owner, Thin Film Consulting
Stephen Elliott began working in charged-particle physics in 1975 at the Nuclear Physics Laboratory of the University of Pittsburgh. During his career, he has worked on the development of ion-beam sources, electron guns, linear accelerators, field-effect emitting devices, magnetron sputtering cathodes and plasma-deposited thin-film coatings. In 1991 he founded Thin Film Consulting to provide services in charged-particle device design, thin-film vapour sources, materials science and process development. In 1993 he began using Opera software for the development of charged-particle devices. Since then, he has developed models for the simulation of X-ray tubes, neutron generators, plasma and surface ion-beam sources, electron guns, cavity resonators, klystrons, ion spacecraft thrusters and thin-film-deposition vapour sources.

Moderator: Hamish Johnston, editor, physicsworld.com

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