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Kinetic modeling of E-to-H mode transition in inductively coupled hydrogen plasmas

Radio Frequency (RF) Inductively Coupled Plasmas (ICPs) are widely known for their two discharge modes, i.e., H-mode and E-mode, where the dynamics of the plasmas are completely different from each other. We have performed a kinetic simulation of a hydrogen plasma discharge in order to clarify the d...

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Detalles Bibliográficos
Autores principales: Nishida, K, Mattei, S, Mochizuki, S, Lettry, J, Hatayama, A
Lenguaje:eng
Publicado: 2016
Materias:
Acceso en línea:https://dx.doi.org/10.1063/1.4953647
http://cds.cern.ch/record/2267913
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author Nishida, K
Mattei, S
Mochizuki, S
Lettry, J
Hatayama, A
author_facet Nishida, K
Mattei, S
Mochizuki, S
Lettry, J
Hatayama, A
author_sort Nishida, K
collection CERN
description Radio Frequency (RF) Inductively Coupled Plasmas (ICPs) are widely known for their two discharge modes, i.e., H-mode and E-mode, where the dynamics of the plasmas are completely different from each other. We have performed a kinetic simulation of a hydrogen plasma discharge in order to clarify the discharge mechanism and the E-to-H transition of the RF ICPs. The numerical simulation results, such as the time variations of spatial distribution of electron density and the power dissipated in the plasma, show the characteristic changes of the plasma dynamics due to E-to-H mode transition. Especially, the drastic change during the mode transition has been observed in the time evolution of the electron energy distribution function (EEDF). The EEDF deviates from a Maxwellian distribution before/after the transition and the deviation is more significant in the E-mode phase. These results indicate the importance of kinetic modeling for the physical understanding of E-to-H transition.
id oai-inspirehep.net-1602708
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
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spelling oai-inspirehep.net-16027082019-09-30T06:29:59Zdoi:10.1063/1.4953647http://cds.cern.ch/record/2267913engNishida, KMattei, SMochizuki, SLettry, JHatayama, AKinetic modeling of E-to-H mode transition in inductively coupled hydrogen plasmasAccelerators and Storage RingsRadio Frequency (RF) Inductively Coupled Plasmas (ICPs) are widely known for their two discharge modes, i.e., H-mode and E-mode, where the dynamics of the plasmas are completely different from each other. We have performed a kinetic simulation of a hydrogen plasma discharge in order to clarify the discharge mechanism and the E-to-H transition of the RF ICPs. The numerical simulation results, such as the time variations of spatial distribution of electron density and the power dissipated in the plasma, show the characteristic changes of the plasma dynamics due to E-to-H mode transition. Especially, the drastic change during the mode transition has been observed in the time evolution of the electron energy distribution function (EEDF). The EEDF deviates from a Maxwellian distribution before/after the transition and the deviation is more significant in the E-mode phase. These results indicate the importance of kinetic modeling for the physical understanding of E-to-H transition.oai:inspirehep.net:16027082016
spellingShingle Accelerators and Storage Rings
Nishida, K
Mattei, S
Mochizuki, S
Lettry, J
Hatayama, A
Kinetic modeling of E-to-H mode transition in inductively coupled hydrogen plasmas
title Kinetic modeling of E-to-H mode transition in inductively coupled hydrogen plasmas
title_full Kinetic modeling of E-to-H mode transition in inductively coupled hydrogen plasmas
title_fullStr Kinetic modeling of E-to-H mode transition in inductively coupled hydrogen plasmas
title_full_unstemmed Kinetic modeling of E-to-H mode transition in inductively coupled hydrogen plasmas
title_short Kinetic modeling of E-to-H mode transition in inductively coupled hydrogen plasmas
title_sort kinetic modeling of e-to-h mode transition in inductively coupled hydrogen plasmas
topic Accelerators and Storage Rings
url https://dx.doi.org/10.1063/1.4953647
http://cds.cern.ch/record/2267913
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AT matteis kineticmodelingofetohmodetransitionininductivelycoupledhydrogenplasmas
AT mochizukis kineticmodelingofetohmodetransitionininductivelycoupledhydrogenplasmas
AT lettryj kineticmodelingofetohmodetransitionininductivelycoupledhydrogenplasmas
AT hatayamaa kineticmodelingofetohmodetransitionininductivelycoupledhydrogenplasmas