{"id":18698,"date":"2018-03-09T09:07:21","date_gmt":"2018-03-09T09:07:21","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/long-term-measurements-of-indoor-radon-and-its-progeny-in-the-presence-of-thoron-using-nuclear-track-detectors-a-novel-approach\/"},"modified":"2018-03-09T09:07:21","modified_gmt":"2018-03-09T09:07:21","slug":"long-term-measurements-of-indoor-radon-and-its-progeny-in-the-presence-of-thoron-using-nuclear-track-detectors-a-novel-approach","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-tierra-y-del-espacio\/long-term-measurements-of-indoor-radon-and-its-progeny-in-the-presence-of-thoron-using-nuclear-track-detectors-a-novel-approach\/","title":{"rendered":"Long-term measurements of indoor radon and its progeny in the presence of thoron using nuclear track detectors: a novel approach"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Khalil Amgarou <\/strong><\/h2>\n<p>En este trabajo, hemos establecido una nueva aproximaci\u00f3n para determinar el factor de equilibrio de los descendientes de 222rn, durante periodos largos de tiempo y en presencia de 220rn, utilizando un sistema pasivo, integrador y multicomponente de detectores de trazas nucleares (dtns). el m\u00e9todo se basa en el hecho de que los periodos de semidesintegraci\u00f3n del 222rn y del 220rn son diferentes, de que ambos is\u00f3topos tienen el mismo coeficiente de difusi\u00f3n en un medio dado, y de que la respuesta de los dtns depende de las condiciones del revelado electroqu\u00edmico utilizadas. el dos\u00edmetro puesto a punto consta de:  1,- dos detectores de makrofol, designados como detectores a y b, que est\u00e1n situados en el interior de dos c\u00e1maras de difusi\u00f3n &#8211; cada una con un filtro diferente &#8211; para medir 222rn+ 220rn y 222rn, adem\u00e1s de.  2,- dos detectores de makrofol (c y d) que est\u00e1n en contacto directo con el aire y a los cuales se les aplica diferentes condiciones de revelado electroqu\u00edmico para obtener las concentraciones del 218po y del 214po.  las sensibilidades de cada detector de makrofol con respecto al 222rn, 220rn y progenie se han calculado te\u00f3ricamente utilizando la t\u00e9cnica de monte carlo, teniendo en cuenta:  1,- la ecuaci\u00f3n de bethe-bloch para determinar el poder de frenado de part\u00edculas cargadas pesadas  en un medio material.  2,- las propiedades y el comportamiento del 222rn, 220rn y descendientes en el aire libre y dentro de una c\u00e1mara de difusi\u00f3n.  3,- el rango de energ\u00edas de part\u00edculas alfa que registra cada detector. el c\u00f3digo desarrollado para estos c\u00e1lculos se ha validado reproduciendo la respuesta de un detector idela, tanto en el aire libre como dentro de una c\u00e1mara de difusi\u00f3n.  se ha llevado a cabo un estudio experimental detallado en el que se han determinado los filtros \u00f3ptimos para la separaci\u00f3n 222rn\/220rn y las  condiciones de revelado electr\u00f3qu\u00edmico apropiadas para cada detector. Asimismo,<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Long-term measurements of indoor radon and its progeny in the presence of thoron using nuclear track detectors: a novel approach<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Long-term measurements of indoor radon and its progeny in the presence of thoron using nuclear track detectors: a novel approach <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Khalil Amgarou <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 24\/07\/2002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Carmen Baixeras Divars<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: agustin Alonso santos <\/li>\n<li>jean Gasiot (vocal)<\/li>\n<li>Francisco Fern\u00e1ndez moreno (vocal)<\/li>\n<li>eugenio Gil l\u00f3pez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Khalil Amgarou En este trabajo, hemos establecido una nueva aproximaci\u00f3n para determinar el factor de equilibrio de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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