Electron Dynamics Within a MITL Containing a Load
| Autor: | M. H. Hess, Evstati Evstatiev |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
Nuclear and High Energy Physics Electromagnetics Guiding center Field (physics) Electron Condensed Matter Physics Charged particle Computational physics Nonlinear system Computer Science::Logic in Computer Science Electric field Speed of light Computer Science::Formal Languages and Automata Theory |
| Zdroj: | IEEE Transactions on Plasma Science. 49:3398-3409 |
| ISSN: | 1939-9375 0093-3813 |
| Popis: | In this article, we derive the vacuum electric fields within specific cylindrically symmetric magnetically insulated transmission lines (MITLs) in the limit of an infinite speed of light for an arbitrary time-dependent current. We focus our attention on two types of MITLs: the radial MITL and a spherically curved MITL. We then simulate the motion of charged particles, such as electrons, present in these MITLs due to the vacuum fields. In general, the motion of charged particles due to the vacuum fields is highly nonlinear since the fields are nonlinear functions of spatial coordinates and depend on an arbitrary time-dependent current drive. Using guiding center theory, however, one can describe the gross particle kinetics using a combination of $\textbf {E} \times \textbf {B}$ and $\nabla B$ drifts. In addition, we compare our approximate inner MITL field models and particle kinetics with those from a fully electromagnetic simulation code. We find that the agreement between the approximate model and the electromagnetic simulations is excellent. |
| Databáze: | OpenAIRE |
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