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Linearized treatment of electrode arc spot motion in a magnetic field
| Content Provider | Scilit |
|---|---|
| Author | Simpson, S. W. |
| Copyright Year | 1994 |
| Description | Journal: Journal of Physics D: Applied Physics The motion of arc spots on electrodes in the presence of a magnetic field is analysed by considering the concentration of current in the arc spot as the final state in the growth of an instability. Linear perturbation theory is used to predict the properties of unstable waves in the plasma above an electrode, and the results are assumed to apply to the arc spot. It is found that various features of the experimentally observed behaviour are predicted by the linearized treatment, including retrograde motion. A simple physical interpretation of retrograde motion follows from the model: retrograde motion is caused by the Hall effect and a voltage-current characteristic with negative slope at the electrode sheath. |
| Related Links | http://iopscience.iop.org/article/10.1088/0022-3727/27/3/018/pdf |
| Ending Page | 554 |
| Page Count | 8 |
| Starting Page | 547 |
| ISSN | 00223727 |
| e-ISSN | 13616463 |
| DOI | 10.1088/0022-3727/27/3/018 |
| Journal | Journal of Physics D: Applied Physics |
| Issue Number | 3 |
| Volume Number | 27 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1994-03-14 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics D: Applied Physics Condensed Matter Physics Perturbation Theory Hall Effect Magnetic Field |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Acoustics and Ultrasonics Condensed Matter Physics Electronic, Optical and Magnetic Materials |
