{"id":19649,"date":"2018-03-09T09:08:41","date_gmt":"2018-03-09T09:08:41","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/optimizacion-de-la-tecnica-de-espectrometria-gamma-para-la-medida-de-radiactividad-ambiental\/"},"modified":"2018-03-09T09:08:41","modified_gmt":"2018-03-09T09:08:41","slug":"optimizacion-de-la-tecnica-de-espectrometria-gamma-para-la-medida-de-radiactividad-ambiental","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/salamanca\/optimizacion-de-la-tecnica-de-espectrometria-gamma-para-la-medida-de-radiactividad-ambiental\/","title":{"rendered":"Optimizaci\u00f3n de la t\u00e9cnica de espectrometr\u00eda gamma para la medida de radiactividad ambiental"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Marta Garc\u00eda-talavera San Miguel <\/strong><\/h2>\n<p>En esta tesis se desarrollan una serie de m\u00e9todos con el fin de optimizar la cantidad de informaci\u00f3n que puede extraerse de un espectro y medioambiental y de mejorar la exactitud y precisi\u00f3n de los resultados obtenidos.  se presenta una metodolog\u00eda de simulaci\u00f3n, basada en geant 3.21, que permite reproducir los valores de la eficiencia de detectores hpge con gran precisi\u00f3n en el intervalo 46.5-1800 kev. Para ello, es necesario implementar la geometr\u00eda del detector mediante una cuidada planificaci\u00f3n de las geometr\u00edas de medida y la combinaci\u00f3n de emisores de bajas y altas energ\u00edas. En el caso de fuentes extensas, es necesario caracterizar, adem\u00e1s de la geometr\u00eda de medida, tanto la densidad aparente de la muestra como su composici\u00f3n qu\u00edmica. Analizando los efectos de la composici\u00f3n qu\u00edmica en la eficiencia de matrices medioambientales probamos como, sin embargo, para determinados tipos de muestras es posibles adoptar una composici\u00f3n qu\u00edmica tipo a energ\u00edas superiores a 60  kev.  aplicamos adem\u00e1s la simulaci\u00f3n de mc al c\u00e1lculo de correcciones por suma en coincidencia para radion\u00faclidos de las tres cadenas de desintegraci\u00f3n naturales. Demostramos como para algunos de ellos, las correcciones superan ampliamente las incertidumbres asociadas a la estad\u00edstica de contaje.  por tanto, la introducci\u00f3n de factores de correcci\u00f3n permite evitar desviaciones sistem\u00e1ticas y rebajar considerablemente las incertidumbres asociadas.  la \u00faltima de las contribuciones de este trabajo a la espectrometr\u00eda gamma, en concreto al an\u00e1lisis de espectros, es el m\u00e9todo h\u00eddrido basado en algoritmos gen\u00e9ticos desarrollado para la deconvoluci\u00f3n de m\u00faltiples. La aplicaci\u00f3n de algoritmos gen\u00e9ticos permite obviar la inicializaci\u00f3n de par\u00e1metros de ajuste, evitando los problemas de convergencia caracter\u00edsticos de los m\u00e9todos de ajuste locales en espacios complejos. De este modo, es posible extraer una mayor informaci\u00f3n de los espec<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Optimizaci\u00f3n de la t\u00e9cnica de espectrometr\u00eda gamma para la medida de radiactividad ambiental<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Optimizaci\u00f3n de la t\u00e9cnica de espectrometr\u00eda gamma para la medida de radiactividad ambiental <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Marta Garc\u00eda-talavera San Miguel <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Salamanca<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 25\/10\/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>Bego\u00f1a Quintana Arn\u00e9s<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Francisco Fern\u00e1ndez gonz\u00e1lez <\/li>\n<li>alejandro Mart\u00edn s\u00e1nchez (vocal)<\/li>\n<li>Manuel Garcia leon (vocal)<\/li>\n<li>Rafael Garc\u00eda tenorio (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Marta Garc\u00eda-talavera San Miguel En esta tesis se desarrollan una serie de m\u00e9todos con el fin 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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[9386],"tags":[44518,60230,9602,7305,60229,60231],"class_list":["post-19649","post","type-post","status-publish","format-standard","hentry","category-salamanca","tag-alejandro-martin-sanchez","tag-begona-quintana-arnes","tag-francisco-fernandez-gonzalez","tag-manuel-garcia-leon","tag-marta-garcia-talavera-san-miguel","tag-rafael-garcia-tenorio"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/19649","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=19649"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/19649\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=19649"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=19649"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=19649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}