On the plasma rotation in a straight magnetized filter of a pulsed vacuum arc

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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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Autores principales:	Giuliani, Leandro Estanislao, Grondona, Diana Elena, Kelly, Héctor Juan, Minotti, Fernando Oscar
Publicado:	2007
Materias:	Magnetic field strength Plasma rotation Vacuum arc Magnetic fields Magnetic filters Magnetization Mathematical models Parameter estimation Plasma theory Vacuum applications
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223727_v40_n2_p401_Giuliani http://hdl.handle.net/20.500.12110/paper_00223727_v40_n2_p401_Giuliani
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00223727_v40_n2_p401_Giuliani
record_format	dspace
spelling	paper:paper_00223727_v40_n2_p401_Giuliani2025-07-30T17:32:16Z On the plasma rotation in a straight magnetized filter of a pulsed vacuum arc Giuliani, Leandro Estanislao Grondona, Diana Elena Kelly, Héctor Juan Minotti, Fernando Oscar 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. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223727_v40_n2_p401_Giuliani 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, Leandro Estanislao Grondona, Diana Elena Kelly, Héctor Juan Minotti, Fernando Oscar 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.
author	Giuliani, Leandro Estanislao Grondona, Diana Elena Kelly, Héctor Juan Minotti, Fernando Oscar
author_facet	Giuliani, Leandro Estanislao Grondona, Diana Elena Kelly, Héctor Juan Minotti, Fernando Oscar
author_sort	Giuliani, Leandro Estanislao
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
publishDate	2007
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223727_v40_n2_p401_Giuliani http://hdl.handle.net/20.500.12110/paper_00223727_v40_n2_p401_Giuliani
work_keys_str_mv	AT giulianileandroestanislao ontheplasmarotationinastraightmagnetizedfilterofapulsedvacuumarc AT grondonadianaelena ontheplasmarotationinastraightmagnetizedfilterofapulsedvacuumarc AT kellyhectorjuan ontheplasmarotationinastraightmagnetizedfilterofapulsedvacuumarc AT minottifernandooscar ontheplasmarotationinastraightmagnetizedfilterofapulsedvacuumarc
_version_	1840323197801594880

On the plasma rotation in a straight magnetized filter of a pulsed vacuum arc

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