A study of the effects of the cathode configuration on the plasma kinetics and neutron emission of plasma-focus discharges in deuterium

Autores
Barbaglia, Mario Oscar; Giovachini, Ricardo Hernán; Milanese, Maria Magdalena; Clausse, Alejandro
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The differences in performance of a 1.9 kJ plasma-focus device PACO assembled with three different cathode configurations are experimentally qualified. In particular, the current sheath kinetics and the neutron yield operating with deuterium gas are systematically studied for the whole range of neutron-producing pressures, and the measurements are analyzed searching for relations between relevant physical magnitudes. The pinching time was found correlated with the dimensionless driver parameter, and this feature was found statistically independent of the cathode. The variation of the inductance jump associated with the radial collapse stage is used to estimate the effective pinch length, (7.3 ± 1.6) mm, and radius, (3.6 ± 2.1 ) mm. The maximum production in a single shot was registered for the smallest cathode radius, 41 mm, whereas the intermediate cathode radius, 45 mm, scored better in average. In all configurations, the neutrons per deuteron pair correlates fairly well with an estimation of the effective equilibrium temperature of the pinch, which suggests a prevalence of thermonuclear neutrons measured perpendicularly to the focus axis.
Fil: Barbaglia, Mario Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Giovachini, Ricardo Hernán. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina
Fil: Milanese, Maria Magdalena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Clausse, Alejandro. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
Materia
NEUTRONS
PINCH EFFECT
PLASMA FOCUS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/149051
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/149051
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A study of the effects of the cathode configuration on the plasma kinetics and neutron emission of plasma-focus discharges in deuteriumBarbaglia, Mario OscarGiovachini, Ricardo HernánMilanese, Maria MagdalenaClausse, AlejandroNEUTRONSPINCH EFFECTPLASMA FOCUShttps://purl.org/becyt/ford/2.3https://purl.org/becyt/ford/2The differences in performance of a 1.9 kJ plasma-focus device PACO assembled with three different cathode configurations are experimentally qualified. In particular, the current sheath kinetics and the neutron yield operating with deuterium gas are systematically studied for the whole range of neutron-producing pressures, and the measurements are analyzed searching for relations between relevant physical magnitudes. The pinching time was found correlated with the dimensionless driver parameter, and this feature was found statistically independent of the cathode. The variation of the inductance jump associated with the radial collapse stage is used to estimate the effective pinch length, (7.3 ± 1.6) mm, and radius, (3.6 ± 2.1 ) mm. The maximum production in a single shot was registered for the smallest cathode radius, 41 mm, whereas the intermediate cathode radius, 45 mm, scored better in average. In all configurations, the neutrons per deuteron pair correlates fairly well with an estimation of the effective equilibrium temperature of the pinch, which suggests a prevalence of thermonuclear neutrons measured perpendicularly to the focus axis.Fil: Barbaglia, Mario Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Giovachini, Ricardo Hernán. Universidad Nacional del Centro de la Provincia de Buenos Aires; ArgentinaFil: Milanese, Maria Magdalena. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Clausse, Alejandro. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; ArgentinaIOP Publishing2020-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/149051Barbaglia, Mario Oscar; Giovachini, Ricardo Hernán; Milanese, Maria Magdalena; Clausse, Alejandro; A study of the effects of the cathode configuration on the plasma kinetics and neutron emission of plasma-focus discharges in deuterium; IOP Publishing; Plasma Physics And Controlled Fusion; 62; 5; 5-2020; 1-110741-3335CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/1361-6587/ab7aadinfo:eu-repo/semantics/altIdentifier/doi/10.1088/1361-6587/ab7aadinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:51Zoai:ri.conicet.gov.ar:11336/149051instacron: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:34982025-09-03 09:45:51.839CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A study of the effects of the cathode configuration on the plasma kinetics and neutron emission of plasma-focus discharges in deuterium
title A study of the effects of the cathode configuration on the plasma kinetics and neutron emission of plasma-focus discharges in deuterium
spellingShingle A study of the effects of the cathode configuration on the plasma kinetics and neutron emission of plasma-focus discharges in deuterium
Barbaglia, Mario Oscar
NEUTRONS
PINCH EFFECT
PLASMA FOCUS
title_short A study of the effects of the cathode configuration on the plasma kinetics and neutron emission of plasma-focus discharges in deuterium
title_full A study of the effects of the cathode configuration on the plasma kinetics and neutron emission of plasma-focus discharges in deuterium
title_fullStr A study of the effects of the cathode configuration on the plasma kinetics and neutron emission of plasma-focus discharges in deuterium
title_full_unstemmed A study of the effects of the cathode configuration on the plasma kinetics and neutron emission of plasma-focus discharges in deuterium
title_sort A study of the effects of the cathode configuration on the plasma kinetics and neutron emission of plasma-focus discharges in deuterium
dc.creator.none.fl_str_mv Barbaglia, Mario Oscar
Giovachini, Ricardo Hernán
Milanese, Maria Magdalena
Clausse, Alejandro
author Barbaglia, Mario Oscar
author_facet Barbaglia, Mario Oscar
Giovachini, Ricardo Hernán
Milanese, Maria Magdalena
Clausse, Alejandro
author_role author
author2 Giovachini, Ricardo Hernán
Milanese, Maria Magdalena
Clausse, Alejandro
author2_role author
author
author
dc.subject.none.fl_str_mv NEUTRONS
PINCH EFFECT
PLASMA FOCUS
topic NEUTRONS
PINCH EFFECT
PLASMA FOCUS
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.3
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The differences in performance of a 1.9 kJ plasma-focus device PACO assembled with three different cathode configurations are experimentally qualified. In particular, the current sheath kinetics and the neutron yield operating with deuterium gas are systematically studied for the whole range of neutron-producing pressures, and the measurements are analyzed searching for relations between relevant physical magnitudes. The pinching time was found correlated with the dimensionless driver parameter, and this feature was found statistically independent of the cathode. The variation of the inductance jump associated with the radial collapse stage is used to estimate the effective pinch length, (7.3 ± 1.6) mm, and radius, (3.6 ± 2.1 ) mm. The maximum production in a single shot was registered for the smallest cathode radius, 41 mm, whereas the intermediate cathode radius, 45 mm, scored better in average. In all configurations, the neutrons per deuteron pair correlates fairly well with an estimation of the effective equilibrium temperature of the pinch, which suggests a prevalence of thermonuclear neutrons measured perpendicularly to the focus axis.
Fil: Barbaglia, Mario Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Giovachini, Ricardo Hernán. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina
Fil: Milanese, Maria Magdalena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Clausse, Alejandro. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
description The differences in performance of a 1.9 kJ plasma-focus device PACO assembled with three different cathode configurations are experimentally qualified. In particular, the current sheath kinetics and the neutron yield operating with deuterium gas are systematically studied for the whole range of neutron-producing pressures, and the measurements are analyzed searching for relations between relevant physical magnitudes. The pinching time was found correlated with the dimensionless driver parameter, and this feature was found statistically independent of the cathode. The variation of the inductance jump associated with the radial collapse stage is used to estimate the effective pinch length, (7.3 ± 1.6) mm, and radius, (3.6 ± 2.1 ) mm. The maximum production in a single shot was registered for the smallest cathode radius, 41 mm, whereas the intermediate cathode radius, 45 mm, scored better in average. In all configurations, the neutrons per deuteron pair correlates fairly well with an estimation of the effective equilibrium temperature of the pinch, which suggests a prevalence of thermonuclear neutrons measured perpendicularly to the focus axis.
publishDate 2020
dc.date.none.fl_str_mv 2020-05
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/11336/149051
Barbaglia, Mario Oscar; Giovachini, Ricardo Hernán; Milanese, Maria Magdalena; Clausse, Alejandro; A study of the effects of the cathode configuration on the plasma kinetics and neutron emission of plasma-focus discharges in deuterium; IOP Publishing; Plasma Physics And Controlled Fusion; 62; 5; 5-2020; 1-11
0741-3335
CONICET Digital
CONICET
url http://hdl.handle.net/11336/149051
identifier_str_mv Barbaglia, Mario Oscar; Giovachini, Ricardo Hernán; Milanese, Maria Magdalena; Clausse, Alejandro; A study of the effects of the cathode configuration on the plasma kinetics and neutron emission of plasma-focus discharges in deuterium; IOP Publishing; Plasma Physics And Controlled Fusion; 62; 5; 5-2020; 1-11
0741-3335
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://iopscience.iop.org/article/10.1088/1361-6587/ab7aad
info:eu-repo/semantics/altIdentifier/doi/10.1088/1361-6587/ab7aad
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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
_version_ 1842268758349971456
score 13.13397

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