Bayesian inference of spectrometric data and validation with numerical simulations of plasma sheath diagnostics of a plasma focus discharge

Autores
Avaria, Gonzalo; Clausse, Alejandro; Davis, Sergio; Pavez, Cristian; Villalba, Nelson; Cuadrado, Osvaldo; Moreno, Jose; Ruiz, H. Marcelo; Soto, Leopoldo
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Plasma Foci are pulsed coaxial discharges with numerous radiation applications and interesting scientific phenomena. Although the physics answered much of the processes involved in these discharges, many related fundamental questions still remains doggedly unresolved. One of the obstacles to deeper knowledge is the scarcity of reliable experimental data. This work presents an elaborate experimental assessment of the electron density in the rundown phase of a 400 J Plasma Focus operating with hydrogen. The rundown of the plasma sheath is basically a hypersonic shock wave between two coaxial electrodes accelerated by the Lorentz force, and it is important to control the pinch formation. The electron density of the passing sheath is measured by means of the Stark broadened hydrogen alpha emission with spatial and temporal resolution. The experimental data is post-processed using Bayesian posterior probability assessment. The results are conflated with the numerical model CShock to construe an educated explanation of the sheath behavior during the rundown. In particular, it is possible to reckon the formation of a toroidal instability reported in previous experiments, and to estimate the plasma sheath temperature (4–20 eV) and velocity (62.5 km/s) at this stage.
Fil: Avaria, Gonzalo. Universidad Andrés Bello; Chile
Fil: Clausse, Alejandro. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; Argentina
Fil: Davis, Sergio. Universidad Andrés Bello; Chile
Fil: Pavez, Cristian. Universidad Andrés Bello; Chile
Fil: Villalba, Nelson. Universidad del Bio Bio; Chile
Fil: Cuadrado, Osvaldo. Comision Chilena de Energia Nuclear; Chile
Fil: Moreno, Jose. Universidad Andrés Bello; Chile
Fil: Ruiz, H. Marcelo. Comision Chilena de Energia Nuclear; Chile
Fil: Soto, Leopoldo. Universidad Andrés Bello; Chile
Materia
Plasma Focus
Interferometry
Electron Density
Temperature
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/218214
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Bayesian inference of spectrometric data and validation with numerical simulations of plasma sheath diagnostics of a plasma focus dischargeAvaria, GonzaloClausse, AlejandroDavis, SergioPavez, CristianVillalba, NelsonCuadrado, OsvaldoMoreno, JoseRuiz, H. MarceloSoto, LeopoldoPlasma FocusInterferometryElectron DensityTemperaturehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Plasma Foci are pulsed coaxial discharges with numerous radiation applications and interesting scientific phenomena. Although the physics answered much of the processes involved in these discharges, many related fundamental questions still remains doggedly unresolved. One of the obstacles to deeper knowledge is the scarcity of reliable experimental data. This work presents an elaborate experimental assessment of the electron density in the rundown phase of a 400 J Plasma Focus operating with hydrogen. The rundown of the plasma sheath is basically a hypersonic shock wave between two coaxial electrodes accelerated by the Lorentz force, and it is important to control the pinch formation. The electron density of the passing sheath is measured by means of the Stark broadened hydrogen alpha emission with spatial and temporal resolution. The experimental data is post-processed using Bayesian posterior probability assessment. The results are conflated with the numerical model CShock to construe an educated explanation of the sheath behavior during the rundown. In particular, it is possible to reckon the formation of a toroidal instability reported in previous experiments, and to estimate the plasma sheath temperature (4–20 eV) and velocity (62.5 km/s) at this stage.Fil: Avaria, Gonzalo. Universidad Andrés Bello; ChileFil: Clausse, Alejandro. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; ArgentinaFil: Davis, Sergio. Universidad Andrés Bello; ChileFil: Pavez, Cristian. Universidad Andrés Bello; ChileFil: Villalba, Nelson. Universidad del Bio Bio; ChileFil: Cuadrado, Osvaldo. Comision Chilena de Energia Nuclear; ChileFil: Moreno, Jose. Universidad Andrés Bello; ChileFil: Ruiz, H. Marcelo. Comision Chilena de Energia Nuclear; ChileFil: Soto, Leopoldo. Universidad Andrés Bello; ChileSpringer2022-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/218214Avaria, Gonzalo; Clausse, Alejandro; Davis, Sergio; Pavez, Cristian; Villalba, Nelson; et al.; Bayesian inference of spectrometric data and validation with numerical simulations of plasma sheath diagnostics of a plasma focus discharge; Springer; Scientific Reports; 12; 1; 9-2022; 1560101-15601122045-2322CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41598-022-19764-7info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-022-19764-7info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:57:58Zoai:ri.conicet.gov.ar:11336/218214instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:57:58.79CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Bayesian inference of spectrometric data and validation with numerical simulations of plasma sheath diagnostics of a plasma focus discharge
title Bayesian inference of spectrometric data and validation with numerical simulations of plasma sheath diagnostics of a plasma focus discharge
spellingShingle Bayesian inference of spectrometric data and validation with numerical simulations of plasma sheath diagnostics of a plasma focus discharge
Avaria, Gonzalo
Plasma Focus
Interferometry
Electron Density
Temperature
title_short Bayesian inference of spectrometric data and validation with numerical simulations of plasma sheath diagnostics of a plasma focus discharge
title_full Bayesian inference of spectrometric data and validation with numerical simulations of plasma sheath diagnostics of a plasma focus discharge
title_fullStr Bayesian inference of spectrometric data and validation with numerical simulations of plasma sheath diagnostics of a plasma focus discharge
title_full_unstemmed Bayesian inference of spectrometric data and validation with numerical simulations of plasma sheath diagnostics of a plasma focus discharge
title_sort Bayesian inference of spectrometric data and validation with numerical simulations of plasma sheath diagnostics of a plasma focus discharge
dc.creator.none.fl_str_mv Avaria, Gonzalo
Clausse, Alejandro
Davis, Sergio
Pavez, Cristian
Villalba, Nelson
Cuadrado, Osvaldo
Moreno, Jose
Ruiz, H. Marcelo
Soto, Leopoldo
author Avaria, Gonzalo
author_facet Avaria, Gonzalo
Clausse, Alejandro
Davis, Sergio
Pavez, Cristian
Villalba, Nelson
Cuadrado, Osvaldo
Moreno, Jose
Ruiz, H. Marcelo
Soto, Leopoldo
author_role author
author2 Clausse, Alejandro
Davis, Sergio
Pavez, Cristian
Villalba, Nelson
Cuadrado, Osvaldo
Moreno, Jose
Ruiz, H. Marcelo
Soto, Leopoldo
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Plasma Focus
Interferometry
Electron Density
Temperature
topic Plasma Focus
Interferometry
Electron Density
Temperature
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Plasma Foci are pulsed coaxial discharges with numerous radiation applications and interesting scientific phenomena. Although the physics answered much of the processes involved in these discharges, many related fundamental questions still remains doggedly unresolved. One of the obstacles to deeper knowledge is the scarcity of reliable experimental data. This work presents an elaborate experimental assessment of the electron density in the rundown phase of a 400 J Plasma Focus operating with hydrogen. The rundown of the plasma sheath is basically a hypersonic shock wave between two coaxial electrodes accelerated by the Lorentz force, and it is important to control the pinch formation. The electron density of the passing sheath is measured by means of the Stark broadened hydrogen alpha emission with spatial and temporal resolution. The experimental data is post-processed using Bayesian posterior probability assessment. The results are conflated with the numerical model CShock to construe an educated explanation of the sheath behavior during the rundown. In particular, it is possible to reckon the formation of a toroidal instability reported in previous experiments, and to estimate the plasma sheath temperature (4–20 eV) and velocity (62.5 km/s) at this stage.
Fil: Avaria, Gonzalo. Universidad Andrés Bello; Chile
Fil: Clausse, Alejandro. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; Argentina
Fil: Davis, Sergio. Universidad Andrés Bello; Chile
Fil: Pavez, Cristian. Universidad Andrés Bello; Chile
Fil: Villalba, Nelson. Universidad del Bio Bio; Chile
Fil: Cuadrado, Osvaldo. Comision Chilena de Energia Nuclear; Chile
Fil: Moreno, Jose. Universidad Andrés Bello; Chile
Fil: Ruiz, H. Marcelo. Comision Chilena de Energia Nuclear; Chile
Fil: Soto, Leopoldo. Universidad Andrés Bello; Chile
description Plasma Foci are pulsed coaxial discharges with numerous radiation applications and interesting scientific phenomena. Although the physics answered much of the processes involved in these discharges, many related fundamental questions still remains doggedly unresolved. One of the obstacles to deeper knowledge is the scarcity of reliable experimental data. This work presents an elaborate experimental assessment of the electron density in the rundown phase of a 400 J Plasma Focus operating with hydrogen. The rundown of the plasma sheath is basically a hypersonic shock wave between two coaxial electrodes accelerated by the Lorentz force, and it is important to control the pinch formation. The electron density of the passing sheath is measured by means of the Stark broadened hydrogen alpha emission with spatial and temporal resolution. The experimental data is post-processed using Bayesian posterior probability assessment. The results are conflated with the numerical model CShock to construe an educated explanation of the sheath behavior during the rundown. In particular, it is possible to reckon the formation of a toroidal instability reported in previous experiments, and to estimate the plasma sheath temperature (4–20 eV) and velocity (62.5 km/s) at this stage.
publishDate 2022
dc.date.none.fl_str_mv 2022-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/218214
Avaria, Gonzalo; Clausse, Alejandro; Davis, Sergio; Pavez, Cristian; Villalba, Nelson; et al.; Bayesian inference of spectrometric data and validation with numerical simulations of plasma sheath diagnostics of a plasma focus discharge; Springer; Scientific Reports; 12; 1; 9-2022; 1560101-1560112
2045-2322
CONICET Digital
CONICET
url http://hdl.handle.net/11336/218214
identifier_str_mv Avaria, Gonzalo; Clausse, Alejandro; Davis, Sergio; Pavez, Cristian; Villalba, Nelson; et al.; Bayesian inference of spectrometric data and validation with numerical simulations of plasma sheath diagnostics of a plasma focus discharge; Springer; Scientific Reports; 12; 1; 9-2022; 1560101-1560112
2045-2322
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41598-022-19764-7
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-022-19764-7
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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