{"id":69804,"date":"2004-03-09T00:00:00","date_gmt":"2004-03-09T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/collective-nuclear-motion-at-finite-temperature-investigated-with-fission-reactions-induced-by-238u-at-1a-gev-on-deuterium\/"},"modified":"2004-03-09T00:00:00","modified_gmt":"2004-03-09T00:00:00","slug":"collective-nuclear-motion-at-finite-temperature-investigated-with-fission-reactions-induced-by-238u-at-1a-gev-on-deuterium","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/santiago-de-compostela\/collective-nuclear-motion-at-finite-temperature-investigated-with-fission-reactions-induced-by-238u-at-1a-gev-on-deuterium\/","title":{"rendered":"Collective nuclear motion at finite temperature investigated with fission reactions induced by 238u at 1a gev on deuterium"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jorge Pereira Conca <\/strong><\/h2>\n<p>El objetivo de este trabajo ha sido el estudio experimental de fen\u00f3menos asociados a movimientos colectivos de n\u00facleos calientes. Para ello se han analizado los residuos de fisi\u00f3n producidos en la reacci\u00f3n de espalaci\u00f3n entre uranio y deuterio a 1a gev. Estas medidas, junto con aqu\u00e9llas obtenidas a partir de residuos de evaporaci\u00f3n, han permitido clarificar algunos aspectos relevantes de los mecanismos de desexcitaci\u00f3n presentes con dicha reacci\u00f3n. en concreto la comparaci\u00f3n de los resultados experimentales con c\u00e1lculos obtenidos a partir de distintos modelos te\u00f3ricos se han podido analizar algunos fen\u00f3menos asociados a movimientos colectivos, tales como la presencia de bandas rotaciones y vibracionales, y la din\u00e1mica del mecanismo de fisi\u00f3n.  el an\u00e1lisis experimental realizado en el presente trabajo incluye la identificaci\u00f3n isot\u00f3pica de los diferentes residuos de fisi\u00f3n, as\u00ed como la medida de sus secciones eficaces de producci\u00f3n y propiedades cinem\u00e1ticas. La identificaci\u00f3n isot\u00f3pica ha sido posible gracias a la utilizaci\u00f3n de un espectr\u00f3metro-separador magn\u00e9tico de alta resoluci\u00f3n: el fragment separator (frs). El acoplamiento de este dispositivo con el acelerador sincrotr\u00f3n sis del gso (alemania) permiti\u00f3 analizar la reacci\u00f3n 238u (1agev)+d en cinem\u00e1tica inversa, lo que facilit\u00f3 la separaci\u00f3n e identificaci\u00f3n de los productos de reacci\u00f3n \u00aben vuelo\u00bb a partir de la medida de su rigidez magn\u00e9ticas y tiempos de vuelo. Las altas resoluciones en masa conseguidas con esta t\u00e9cnica experimental llevan impl\u00edcitas una limitada aceptaci\u00f3n en rigidez magn\u00e9tica. De este modo, fue necesario superponer la contribuci\u00f3n de varios \u00absettings\u00bb centrados en diferentes varones de rigidez magn\u00e9ticas para reconstruir la distribuci\u00f3n de velocidades intr\u00ednseca de cada n\u00facleo.  las secciones eficaces de cada uno de los residuos de fisi\u00f3n identificados se obtuvieron normalizando la tasa de producci\u00f3n medida en funci\u00f3n<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Collective nuclear motion at finite temperature investigated with fission reactions induced by 238u at 1a gev on deuterium<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Collective nuclear motion at finite temperature investigated with fission reactions induced by 238u at 1a gev on deuterium <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jorge Pereira Conca <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 03\/09\/2004<\/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> Benlliure Anaya Jos\u00e9 F.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: karl Heinz schmidt <\/li>\n<li> Ta\u00edn enriquez Jos\u00e9 Luis (vocal)<\/li>\n<li>pierre Wieleczko jean (vocal)<\/li>\n<li>fanny Rejmund (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jorge Pereira Conca El objetivo de este trabajo ha sido el estudio experimental de fen\u00f3menos asociados a [&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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