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Modeling of multistage depressed collectors using a 3D conformal finite-difference time-domain particle-in-cell code

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8 Author(s)
M. C. Lin ; Tech-X Corporation, Boulder, CO, 80303, USA ; P. H. Stoltz ; D. N. Smithe ; H. Song
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Summary form only given. The feasibility of modeling a multistage depressed collector using a conformal finite-difference time-domain particle-incell code has been studied. A feedback mechanism is implemented to provide stable time-dependent voltages for each stage of the depressed collector. An arbitrary space-time dependent spent beam distribution can be given in our time domain simulations. We demonstrate the design of a five stage depressed collector recovering a triangular spent beam distribution achieving an energy recovery efficiency of 70%. Detail modeling and code capabilities will be presented.

Published in:

Plasma Science, 2010 Abstracts IEEE International Conference on

Date of Conference:

20-24 June 2010