{"id":112235,"date":"2018-03-11T10:39:04","date_gmt":"2018-03-11T10:39:04","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/collimation-and-beam-loss-studies-in-high-intensity-synchrotrons\/"},"modified":"2018-03-11T10:39:04","modified_gmt":"2018-03-11T10:39:04","slug":"collimation-and-beam-loss-studies-in-high-intensity-synchrotrons","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica-de-particulas\/collimation-and-beam-loss-studies-in-high-intensity-synchrotrons\/","title":{"rendered":"Collimation and beam loss studies in high-intensity synchrotrons"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Javier Barranco Garc\u00eda <\/strong><\/h2>\n<p>Las p\u00e9rdidas de haz de part\u00edculas constituyen un factor limitante en la operaci\u00f3n de cualquier acelerador   de part\u00edculas de alta intensidad. El dise\u00f1o del nuevo sincrotr\u00f3n de protones del cern (ps2), previsto  para reemplazar el existente sincrotr\u00f3n de protones (ps), ha seguido desde la primeras etapas un  enfoque de minimizaci\u00f3n de las p\u00e9rdidas de haz. Incluso en \u00f3ptimas condiciones de operaci\u00f3n del   acelerador un cierto porcentaje de p\u00e9rdidas son inevitables. Estas p\u00e9rdidas de haz se producen  lentamente y son causadas por diferentes procesos que en el ps2 son principalmente efectos de la carga  espacial. Las part\u00edculas deben ser interceptadas de una forma controlada antes de que radioactiven y  da\u00f1en imanes y otros elementos delicados en el acelerador. En la presente tesis, un sistema de  colimaci\u00f3n betatr\u00f3nica en dos etapas es dise\u00f1ado para el ps2 para proteger al acelerador frente a estas  p\u00e9rdidas. La \u00faltima generaci\u00f3n de c\u00f3digos para el dise\u00f1o de sistemas de colimaci\u00f3n, sixtrack+k2, son  revisados y actualizados seg\u00fan las necesidades de ps2 incluyendo la dependencia en la energ\u00eda de las  rutinas simulando interacci\u00f3n de la part\u00edcula con la materia, definici\u00f3n de la apertura de los diferentes  elementos del acelerador y producci\u00f3n de una versin de lentes delgadas del acelerador. La validaci\u00f3n  final del c\u00f3digo, actualizada para el rango de decenas de gev, se ha realizado mediante la simulaci\u00f3n del   perfil de p\u00e9rdidas de haz medidas en el ps durante la extracci\u00f3n de transferencia continua. Este detallado  modelo es utilizado para simular una nueva \u00f3ptica concevida para disminuir las p\u00e9rdidas fuera del tunel.   finalmente, la evaluci\u00f3n de la eficiencia del sistema de colimaci\u00f3n del ps2 es evaluada y optimizada con  respecto de lo principales par\u00e1metros de dise\u00f1o de la \u00f3ptica. El l\u00edmite de referencia de 1 w\/m p\u00e9rdidas  promedio a lo largo del acelerador es respetado y la supervivencia de los colimadores primarios y  secundarios es confirmada mediante simulaciones de deposici\u00f3n de energ\u00eda.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Collimation and beam loss studies in high-intensity synchrotrons<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Collimation and beam loss studies in high-intensity synchrotrons <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Javier Barranco Garc\u00eda <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de catalunya<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 20\/01\/2012<\/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>Francisco Calvi\u00f1o Tavares<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: dieter Einfeld <\/li>\n<li>angeles Faus golfe (vocal)<\/li>\n<li>  (vocal)<\/li>\n<li>  (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Javier Barranco Garc\u00eda Las p\u00e9rdidas de haz de part\u00edculas constituyen un factor limitante en la operaci\u00f3n 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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