Multiphysics modeling of Accelerators Through Code Integration

SRF cavity design is crucial to both the energy and intensity frontiers. SRF cavities are designed to meet a number of criteria, such as minimal effects of Higher Order Modes (HOMs), and minimal values of maximum surface magnetic fields, which are related to the EM properties. But then SRF cavities must be resilient to multipacting and microphonics, the changes induced by stress, and they must additionally have the heat flow properties to minimize the thermal load on the cooling system. Then for use in RF electron guns, another host of figures of merit must be optimized. These optimizations are currently tricky because there exists no tool that can self-consistently model all of this physics simultaneously. Translation software will be developed to transform the data produced by one modeling code so that it can be imported into another. To the greatest degree possible, data will be put into a standardized, open data structure. The flexible GUI infrastructure of Composer will be enhanced to provide control over this process in a user-friendly manner. Phase I will demonstrate the basic code coupling capabilities needed for an improved design workflow. This will include demonstrations of coupling two application codes using the VizSchema data structures and markup, and implementation of a control Python script for this. Phase II will provide a complete set of translators along with a flexible GUI for managing the process. The proposed tool will streamline the design of accelerator cavities and other electromagnetic systems. The techniques developed here will be applicable to simulations for DOE mission areas, including particle accelerator design. They will also be useful for the design of antennas and photonic devices, which are in use in the fields of autonomous vehicles, communications, medical devices, and other areas.