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Simulations of Gyrotrons with VSim

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9/24/14 11:00 am to 9/24/14 12:00 pm EDT

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Technical Education Webinar Series

Title: Simulations of Gyrotrons with VSim

Date: September 24, 2014

Time: 8am PT/ 11am ET/ 3pm UTC

Sponsored by: Tech-X Corp.

Presented by: Dr. David Smithe, Senior Scientist, Tech-X Corporation

Abstract:
Gyrotrons are vacuum electronics microwave devices which use relatively simple waveguide geometry and strong magnetic fields to produce high power at high frequency. Applications of gyrotrons range from radar to heating of magnetic fusion experiments. We describe how TechX's VSim software can be used to simulate gyrotrons, including very high power devices operating at high mode number. We discuss setting up the geometry, magnetic field, electron beam, and radiating boundary conditions in a simulation, and show various operational characteristics, including start-up, mode competition, and steady operation.

Presenter Bio:
Dr. Smithe is an expert in computational modeling of the interactions of matter with electromagnetics and plasma physics. Based on his extensive experience, he is the project manager for VSim software from Tech-X. Dr. Smithe is a pioneer of frequency and time-domain methods for studying vacuum electron and plasma devices. Dr. Smithe has participated in the implementation of the ground-breaking cut-cell smooth-boundary model in VSim, used to model such complex structures, and is also spearheading efforts to perform multi-physics simulations that pair thermal and sheath physics models with the electromagnetic calculation. Before joining Tech-X Corporation, Dr. Smithe was employed at Mission Research Corporation (acquired by ATK) from 1989 to 2005, where his main focus was modeling of numerous electron beam, plasma, and microwave devices using electromagnetic particle-in-cell software.

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