Isotropic and anisotropic components of the neutron emissions at the FN-II and PACO dense plasma focus devices

Autores
Castillo, F.; Herrera, J. J. E.; Rangel, J.; Milanese, Maria Magdalena; Moroso, Roberto Luis; Pouzo, Jorge Osvaldo; Golzarri, J. I.; Espinosa, G.
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The average angular distribution of neutron emissions has been measured in the Fuego Nuevo II (FN-II) dense plasma focus device (5 kJ) by means of CR-39 plastic nuclear track detectors. When pure deuterium is used as the filling gas, the data can be adjusted to a Gaussian function, related to anisotropic emission, superposed on a constant pedestal, related to isotropic emission. When deuterium–argon admixtures are used, the anisotropic contribution is best represented by a parabola. The same analysis is applied to previously reported results, for fewer shots, in pure deuterium from the PACO device, which is similar in size to the FN-II. In both devices the anisotropic component is smaller than the isotropic one, but with different features. In PACO the anisotropic component is concentrated on a large narrow beam around the axis, but its contribution to the total neutron yield is significantly smaller than in the FN-II, where the anisotropic component spreads over a wider range. The neutron flux per shot is monitored in both devices with calibrated silver activation detectors, at 20˚ and at 90˚ from the axis. The average values of the neutron flux at these two angles are used, along with the angular distributions obtained form the track detectors, in order to estimate the absolute neutron yield of both the isotropic and the anisotropic contributions. From examining different groups of shots, it is found that the shape of the angular distribution is important in the estimation of anisotropy, and that the value usually reported, as the ratio of neutron counts head-on and side-on, as measured by activation counters, may be misleading.
Fil: Castillo, F.. Universidad Nacional Autónoma de México; México
Fil: Herrera, J. J. E.. Universidad Nacional Autónoma de México; México
Fil: Rangel, J.. Universidad Nacional Autónoma de México; México
Fil: Milanese, Maria Magdalena. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; Argentina
Fil: Moroso, Roberto Luis. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; Argentina
Fil: Pouzo, Jorge Osvaldo. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; Argentina
Fil: Golzarri, J. I.. Universidad Nacional Autónoma de México; México
Fil: Espinosa, G.. Universidad Nacional Autónoma de México; México
Materia
Dense Plasma Focus
Neutron pulses
Neutron detection
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/242680
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/242680
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Isotropic and anisotropic components of the neutron emissions at the FN-II and PACO dense plasma focus devicesCastillo, F.Herrera, J. J. E.Rangel, J.Milanese, Maria MagdalenaMoroso, Roberto LuisPouzo, Jorge OsvaldoGolzarri, J. I.Espinosa, G.Dense Plasma FocusNeutron pulsesNeutron detectionhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The average angular distribution of neutron emissions has been measured in the Fuego Nuevo II (FN-II) dense plasma focus device (5 kJ) by means of CR-39 plastic nuclear track detectors. When pure deuterium is used as the filling gas, the data can be adjusted to a Gaussian function, related to anisotropic emission, superposed on a constant pedestal, related to isotropic emission. When deuterium–argon admixtures are used, the anisotropic contribution is best represented by a parabola. The same analysis is applied to previously reported results, for fewer shots, in pure deuterium from the PACO device, which is similar in size to the FN-II. In both devices the anisotropic component is smaller than the isotropic one, but with different features. In PACO the anisotropic component is concentrated on a large narrow beam around the axis, but its contribution to the total neutron yield is significantly smaller than in the FN-II, where the anisotropic component spreads over a wider range. The neutron flux per shot is monitored in both devices with calibrated silver activation detectors, at 20˚ and at 90˚ from the axis. The average values of the neutron flux at these two angles are used, along with the angular distributions obtained form the track detectors, in order to estimate the absolute neutron yield of both the isotropic and the anisotropic contributions. From examining different groups of shots, it is found that the shape of the angular distribution is important in the estimation of anisotropy, and that the value usually reported, as the ratio of neutron counts head-on and side-on, as measured by activation counters, may be misleading.Fil: Castillo, F.. Universidad Nacional Autónoma de México; MéxicoFil: Herrera, J. J. E.. Universidad Nacional Autónoma de México; MéxicoFil: Rangel, J.. Universidad Nacional Autónoma de México; MéxicoFil: Milanese, Maria Magdalena. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; ArgentinaFil: Moroso, Roberto Luis. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; ArgentinaFil: Pouzo, Jorge Osvaldo. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; ArgentinaFil: Golzarri, J. I.. Universidad Nacional Autónoma de México; MéxicoFil: Espinosa, G.. Universidad Nacional Autónoma de México; MéxicoIOP Publishing2003-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/242680Castillo, F.; Herrera, J. J. E.; Rangel, J.; Milanese, Maria Magdalena; Moroso, Roberto Luis; et al.; Isotropic and anisotropic components of the neutron emissions at the FN-II and PACO dense plasma focus devices; IOP Publishing; Plasma Physics And Controlled Fusion; 45; 3; 3-2003; 289-3000741-3335CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/0741-3335/45/3/309info:eu-repo/semantics/altIdentifier/doi/10.1088/0741-3335/45/3/309info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:39:56Zoai:ri.conicet.gov.ar:11336/242680instacron: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:34982025-10-15 14:39:57.288CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Isotropic and anisotropic components of the neutron emissions at the FN-II and PACO dense plasma focus devices
title Isotropic and anisotropic components of the neutron emissions at the FN-II and PACO dense plasma focus devices
spellingShingle Isotropic and anisotropic components of the neutron emissions at the FN-II and PACO dense plasma focus devices
Castillo, F.
Dense Plasma Focus
Neutron pulses
Neutron detection
title_short Isotropic and anisotropic components of the neutron emissions at the FN-II and PACO dense plasma focus devices
title_full Isotropic and anisotropic components of the neutron emissions at the FN-II and PACO dense plasma focus devices
title_fullStr Isotropic and anisotropic components of the neutron emissions at the FN-II and PACO dense plasma focus devices
title_full_unstemmed Isotropic and anisotropic components of the neutron emissions at the FN-II and PACO dense plasma focus devices
title_sort Isotropic and anisotropic components of the neutron emissions at the FN-II and PACO dense plasma focus devices
dc.creator.none.fl_str_mv Castillo, F.
Herrera, J. J. E.
Rangel, J.
Milanese, Maria Magdalena
Moroso, Roberto Luis
Pouzo, Jorge Osvaldo
Golzarri, J. I.
Espinosa, G.
author Castillo, F.
author_facet Castillo, F.
Herrera, J. J. E.
Rangel, J.
Milanese, Maria Magdalena
Moroso, Roberto Luis
Pouzo, Jorge Osvaldo
Golzarri, J. I.
Espinosa, G.
author_role author
author2 Herrera, J. J. E.
Rangel, J.
Milanese, Maria Magdalena
Moroso, Roberto Luis
Pouzo, Jorge Osvaldo
Golzarri, J. I.
Espinosa, G.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Dense Plasma Focus
Neutron pulses
Neutron detection
topic Dense Plasma Focus
Neutron pulses
Neutron detection
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The average angular distribution of neutron emissions has been measured in the Fuego Nuevo II (FN-II) dense plasma focus device (5 kJ) by means of CR-39 plastic nuclear track detectors. When pure deuterium is used as the filling gas, the data can be adjusted to a Gaussian function, related to anisotropic emission, superposed on a constant pedestal, related to isotropic emission. When deuterium–argon admixtures are used, the anisotropic contribution is best represented by a parabola. The same analysis is applied to previously reported results, for fewer shots, in pure deuterium from the PACO device, which is similar in size to the FN-II. In both devices the anisotropic component is smaller than the isotropic one, but with different features. In PACO the anisotropic component is concentrated on a large narrow beam around the axis, but its contribution to the total neutron yield is significantly smaller than in the FN-II, where the anisotropic component spreads over a wider range. The neutron flux per shot is monitored in both devices with calibrated silver activation detectors, at 20˚ and at 90˚ from the axis. The average values of the neutron flux at these two angles are used, along with the angular distributions obtained form the track detectors, in order to estimate the absolute neutron yield of both the isotropic and the anisotropic contributions. From examining different groups of shots, it is found that the shape of the angular distribution is important in the estimation of anisotropy, and that the value usually reported, as the ratio of neutron counts head-on and side-on, as measured by activation counters, may be misleading.
Fil: Castillo, F.. Universidad Nacional Autónoma de México; México
Fil: Herrera, J. J. E.. Universidad Nacional Autónoma de México; México
Fil: Rangel, J.. Universidad Nacional Autónoma de México; México
Fil: Milanese, Maria Magdalena. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; Argentina
Fil: Moroso, Roberto Luis. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; Argentina
Fil: Pouzo, Jorge Osvaldo. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; Argentina
Fil: Golzarri, J. I.. Universidad Nacional Autónoma de México; México
Fil: Espinosa, G.. Universidad Nacional Autónoma de México; México
description The average angular distribution of neutron emissions has been measured in the Fuego Nuevo II (FN-II) dense plasma focus device (5 kJ) by means of CR-39 plastic nuclear track detectors. When pure deuterium is used as the filling gas, the data can be adjusted to a Gaussian function, related to anisotropic emission, superposed on a constant pedestal, related to isotropic emission. When deuterium–argon admixtures are used, the anisotropic contribution is best represented by a parabola. The same analysis is applied to previously reported results, for fewer shots, in pure deuterium from the PACO device, which is similar in size to the FN-II. In both devices the anisotropic component is smaller than the isotropic one, but with different features. In PACO the anisotropic component is concentrated on a large narrow beam around the axis, but its contribution to the total neutron yield is significantly smaller than in the FN-II, where the anisotropic component spreads over a wider range. The neutron flux per shot is monitored in both devices with calibrated silver activation detectors, at 20˚ and at 90˚ from the axis. The average values of the neutron flux at these two angles are used, along with the angular distributions obtained form the track detectors, in order to estimate the absolute neutron yield of both the isotropic and the anisotropic contributions. From examining different groups of shots, it is found that the shape of the angular distribution is important in the estimation of anisotropy, and that the value usually reported, as the ratio of neutron counts head-on and side-on, as measured by activation counters, may be misleading.
publishDate 2003
dc.date.none.fl_str_mv 2003-03
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/11336/242680
Castillo, F.; Herrera, J. J. E.; Rangel, J.; Milanese, Maria Magdalena; Moroso, Roberto Luis; et al.; Isotropic and anisotropic components of the neutron emissions at the FN-II and PACO dense plasma focus devices; IOP Publishing; Plasma Physics And Controlled Fusion; 45; 3; 3-2003; 289-300
0741-3335
CONICET Digital
CONICET
url http://hdl.handle.net/11336/242680
identifier_str_mv Castillo, F.; Herrera, J. J. E.; Rangel, J.; Milanese, Maria Magdalena; Moroso, Roberto Luis; et al.; Isotropic and anisotropic components of the neutron emissions at the FN-II and PACO dense plasma focus devices; IOP Publishing; Plasma Physics And Controlled Fusion; 45; 3; 3-2003; 289-300
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/10.1088/0741-3335/45/3/309
info:eu-repo/semantics/altIdentifier/doi/10.1088/0741-3335/45/3/309
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv 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
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score 13.22299

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