Conveners
2.5 Codes and Modeling
- Ian Rittersdorf
Description
This is the Codes and Modeling session within Microwave Generation and Plasma Interactions
Beam optics for sources, transport and depressed electron collectors for RF component design and performance are predicted using simulation codes with ever more fidelity. To meet these modern day challenges, the MICHELLE charged particle beam optics code [1,2] has a new official release of Version 7 (2019), which contains a host of improvements including the physics solvers, user...
The injection and absorption of waves entering or escaping open boundaries in EM-PIC simulations is of interest provided the numerical reflections are low, and the boundary is stable. The Higdon [1] operator method provides the basis of a multi-phase velocity matching algorithm. The potential for high order implementation provides for (a) injection of low reflection incident waves into the...
Calabazas Creek Research (CCR) developed and has maintained and continuously added new capabilities to Beam Optics Analyzer (BOA). It provides several finite element field solvers for electrostatics, heat transfer, magnetostatics and Helmholtz fields. It can track particles relativistically in either static or harmonic fields with space charge effects. It provides sophisticated emission models...
Computational plasma models such as magnetohydrodynamics (MHD) and particle-in-cell (PIC) are essential tools in modern plasma physics. They can be used to complement physical experiments, inform future avenues of research, and provide insight into plasma phenomena that are difficult to create and control in a laboratory. The more detailed and physically realistic simulations can require the...
RF device design and performance are predicted using simulation. Fast design tools such as those that model beam dynamics in one dimension may be sufficient for initial design work or for RF devices where performance is not critical. However, in many cases these tools do not have the fidelity to meet performance objectives. Particle-In-Cell codes such as MAGIC can be used to model the...
The 3D Electromagnetic Particle-in-Cell (EM-PIC) method is well known as a powerful simulation technique for modeling electron beam and/or plasma interactions with strong electromagnetic fields inside complex device structures. One of the first tasks for users of PIC codes is to precisely define the 3D device geometry for their simulation. To simplify this task for users of NRL’s Neptune code,...
