Ion‐end‐loss rate for rf‐plugged mirrors and its application to electrostatically plugged mirrors
| Autor: | Yoshiro Sadamoto |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Fluid Flow and Transfer Processes
Physics Range (particle radiation) business.industry Computational Mechanics General Physics and Astronomy Plasma confinement Plasma Condensed Matter Physics law.invention Ion Optics Physics::Plasma Physics Mechanics of Materials Monte carlo code law Electric field Atomic physics business Spark plug Loss rate |
| Zdroj: | Physics of Fluids B: Plasma Physics. 2:2191-2195 |
| ISSN: | 0899-8221 |
| DOI: | 10.1063/1.859400 |
| Popis: | Improvement of plasma confinement attributed to both ion heating and quasipotential is experimentally investigated by imposing rf electric fields with the ion‐cyclotron range of frequency near both ends and one end of a minimum‐B mirror, respectively. An expression of the ion‐end‐loss rate for rf‐plugged mirrors is compared with the experimental results for one‐end plugging by the quasipotential. The expression agrees with a Pastukhov for large potentials. The same expression applied to end losses from electrostatically plugged mirrors shows a good fit to the Fokker–Planck and Monte Carlo code results within the accuracies for both plug potential and mirror ratio and is good for arbitrary values of plug potential and at least for mirror ratios larger than or equal to 2. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|