On the plasma rotation in a straight magnetized filter of a pulsed vacuum arc
In vacuum arcs of interest for ion deposition, in which a magnetic filter is used, significant plasma rotation about the filter axis can develop. In the present work we present experimental evidence and simplified models to interpret relatively fast rotation of plasma generated in a pulsed vacuum ar...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00223727_v40_n2_p401_Giuliani |
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todo:paper_00223727_v40_n2_p401_Giuliani2023-10-03T14:32:22Z On the plasma rotation in a straight magnetized filter of a pulsed vacuum arc Giuliani, L. Grondona, D. Kelly, H. Minotti, F.O. Magnetic field strength Plasma rotation Vacuum arc Magnetic fields Magnetic filters Magnetization Mathematical models Parameter estimation Plasma theory Vacuum applications In vacuum arcs of interest for ion deposition, in which a magnetic filter is used, significant plasma rotation about the filter axis can develop. In the present work we present experimental evidence and simplified models to interpret relatively fast rotation of plasma generated in a pulsed vacuum arc with a straight magnetic filter and with a magnetic field strength in the range 52-430 G. The plasma rotation is produced in the first part of the filter (the driving region) where either the expanding or the contracting plasma encounters a mainly axial magnetic field. In the next part of the filter (the rotation region) a quasi-equilibrium is achieved and the plasma does not evolve further significantly. A rigid-rotor type of equilibrium is considered to model the rotation region, with experimentally obtained parameters, and a simple model is employed in the driving region to quantify the magnitude of the plasma rotation. It is found that at the quoted values of the magnetic field plasma rotation is an essential constituent to consider in any self-consistent theoretical model for the plasma inside the filter. © 2007 IOP Publishing Ltd. Fil:Giuliani, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Grondona, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Kelly, H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Minotti, F.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00223727_v40_n2_p401_Giuliani |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Magnetic field strength Plasma rotation Vacuum arc Magnetic fields Magnetic filters Magnetization Mathematical models Parameter estimation Plasma theory Vacuum applications |
| spellingShingle |
Magnetic field strength Plasma rotation Vacuum arc Magnetic fields Magnetic filters Magnetization Mathematical models Parameter estimation Plasma theory Vacuum applications Giuliani, L. Grondona, D. Kelly, H. Minotti, F.O. On the plasma rotation in a straight magnetized filter of a pulsed vacuum arc |
| topic_facet |
Magnetic field strength Plasma rotation Vacuum arc Magnetic fields Magnetic filters Magnetization Mathematical models Parameter estimation Plasma theory Vacuum applications |
| description |
In vacuum arcs of interest for ion deposition, in which a magnetic filter is used, significant plasma rotation about the filter axis can develop. In the present work we present experimental evidence and simplified models to interpret relatively fast rotation of plasma generated in a pulsed vacuum arc with a straight magnetic filter and with a magnetic field strength in the range 52-430 G. The plasma rotation is produced in the first part of the filter (the driving region) where either the expanding or the contracting plasma encounters a mainly axial magnetic field. In the next part of the filter (the rotation region) a quasi-equilibrium is achieved and the plasma does not evolve further significantly. A rigid-rotor type of equilibrium is considered to model the rotation region, with experimentally obtained parameters, and a simple model is employed in the driving region to quantify the magnitude of the plasma rotation. It is found that at the quoted values of the magnetic field plasma rotation is an essential constituent to consider in any self-consistent theoretical model for the plasma inside the filter. © 2007 IOP Publishing Ltd. |
| format |
JOUR |
| author |
Giuliani, L. Grondona, D. Kelly, H. Minotti, F.O. |
| author_facet |
Giuliani, L. Grondona, D. Kelly, H. Minotti, F.O. |
| author_sort |
Giuliani, L. |
| title |
On the plasma rotation in a straight magnetized filter of a pulsed vacuum arc |
| title_short |
On the plasma rotation in a straight magnetized filter of a pulsed vacuum arc |
| title_full |
On the plasma rotation in a straight magnetized filter of a pulsed vacuum arc |
| title_fullStr |
On the plasma rotation in a straight magnetized filter of a pulsed vacuum arc |
| title_full_unstemmed |
On the plasma rotation in a straight magnetized filter of a pulsed vacuum arc |
| title_sort |
on the plasma rotation in a straight magnetized filter of a pulsed vacuum arc |
| url |
http://hdl.handle.net/20.500.12110/paper_00223727_v40_n2_p401_Giuliani |
| work_keys_str_mv |
AT giulianil ontheplasmarotationinastraightmagnetizedfilterofapulsedvacuumarc AT grondonad ontheplasmarotationinastraightmagnetizedfilterofapulsedvacuumarc AT kellyh ontheplasmarotationinastraightmagnetizedfilterofapulsedvacuumarc AT minottifo ontheplasmarotationinastraightmagnetizedfilterofapulsedvacuumarc |
| _version_ |
1807321090084569088 |