The plasma state in the surroundings of a multi-cathode-spot vacuum arc
A stationary, two-fluid model with spherical symmetry to describe the region surrounding the electrodes of a multi-cathode-spot vacuum arc is presented. For typical values of arc parameters, there is a weak coupling between ions and electrons and an analytical approximation for the physical quantiti...
| Autores principales: | , , , |
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| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00223727_v31_n14_p1737_Kelly |
| Aporte de: |
| Sumario: | A stationary, two-fluid model with spherical symmetry to describe the region surrounding the electrodes of a multi-cathode-spot vacuum arc is presented. For typical values of arc parameters, there is a weak coupling between ions and electrons and an analytical approximation for the physical quantities of the plasma can be developed. An important feature of this model is the prediction of a voltage profile outside the electrodes which causes an extra acceleration of the ions emerging from the interelectrode plasma. |
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