An experimental study of the plasma jet generated in a pulsed copper vacuum arc with an annular anode and operated with a linear magnetic filter is presented. Two types of filters were employed, one consisting of an insulating duct and the other of a conducting duct, both of them surrounded by an external coil, which generates the axial magnetic field. To improve the ion flux at the filter entrance another auxiliary magnetic field in the cathode region was applied (focusing field). Also, the cathode shape was modified to confine the cathode spot onto the front cathode surface. Operating the arc under vacuum conditions, probe measurements of the ion saturation current and the plasma potential at different axial positions along the ducts and for different filtering magnetic field values are reported. A comparison between both kinds of filters is also presented. © 2006 American Institute of Physics.
Documento: | Artículo |
Título: | Study of linear magnetic filters in a pulsed copper vacuum arc |
Autor: | Giuliani, L.; Grondona, D.; Kelly, H. |
Ciudad: | Mexico-City |
Filiación: | R Instituto de Física del Plasma (CONICET), Departamento de Física, Pab. 1, C1428EHA, Buenos Aires, Argentina |
Año: | 2006 |
Volumen: | 875 |
Página de inicio: | 199 |
Página de fin: | 202 |
DOI: | http://dx.doi.org/10.1063/1.2405930 |
Título revista: | PLASMA AND FUSION SCIENCE: 16th IAEA Technical Meeting on Research using Small Fusion Devices; XI Latin American Workshop on Plasma Physics |
Título revista abreviado: | AIP Conf. Proc. |
ISSN: | 0094243X |
PDF: | https://bibliotecadigital.exactas.uba.ar/download/paper/paper_0094243X_v875_n_p199_Giuliani.pdf |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0094243X_v875_n_p199_Giuliani |