Author: DeFord, J.F.
Paper Title Page
THPBA29 Recent Improvements in Particle Simulation Support in Analyst-MP 1295
 
  • J.F. DeFord, B.L. Held, A.A. Nichols
    STAAR/AWR Corporation, Mequon, USA
 
  Funding: Portions of this work were funded by the Department of Energy SBIR Program under contract SC0002604.
A new volumetric particle source has been developed for Analyst-MP for use in multipacting computations. The source is based upon the stochastic initiation of particles on the finite-element mesh together with an adaptive algorithm for determining when to stop the process within a particular element when the solution converges. Support for field-emission using the Fowler-Nordheim model has also been developed in support of dark current computations. Examples of the use of these emission models in RF cavity simulation will be presented. The user interface has been updated with several features that aid in model development/simulation. All user actions are now recorded in the form of a Python script that can be executed to reproduce the actions, or to act as a starting point for a user script. Variables and expressions can now be used in all numeric fields, and numeric values all have units that can be specified directly or are inferred from an expression. Other changes include support for undo/redo, improved model data presentation, and updated result visualization. A summary of user interface changes and their impact on RF structure design simulation will be presented.