| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Halo Current | Physics | 1: Currents in the halo region of a plasma discharge. (references) | |
| 2: Current which flows outside the confined plasma region, in the scrape-off layer. During a VDE, the plasma makes contact with a limiter and starts to be scraped off, causing a fraction of the plasma current to flow along the field lines. The current path can intercept a material surface, where the current will take the path of least resistance, causing intense heating and deformation of the material. The effects of halo currents may not be axisymmetric, and can cause great damage. They are a potential concern for Next Step devices. (references) | |||
Source: compiled by the editor from various references; see credits. | Top | ||
