{"id":16789,"date":"2002-10-05T00:00:00","date_gmt":"2002-10-05T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-de-la-vaina-ionica-de-una-sonda-electrostatica-en-plasmas-electropositivos-y-electronegativos\/"},"modified":"2002-10-05T00:00:00","modified_gmt":"2002-10-05T00:00:00","slug":"estudio-de-la-vaina-ionica-de-una-sonda-electrostatica-en-plasmas-electropositivos-y-electronegativos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/estudio-de-la-vaina-ionica-de-una-sonda-electrostatica-en-plasmas-electropositivos-y-electronegativos\/","title":{"rendered":"Estudio de la vaina ionica de una sonda electrost\u00e1tica en plasmas electropositivos y electronegativos"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Rut Morales Crespo <\/strong><\/h2>\n<p>En esta tesis doctoral se elabora un modelo de la vaina i\u00f3nica positiva en torno a una sonda de geometr\u00eda tanto cil\u00edndrica como esf\u00e9rica en plasmas electropositivos y electronegativos, considerando el movimiento t\u00e9rmico de los iones positivos en el plasma.  este modelo parte de una serie de hip\u00f3tesis que determinan los procesos y las condiciones que se dan en la vaina. Una de las hip\u00f3tesis m\u00e1s importantes del modelo es la referente al movimiento radial o cuasiradial de los iones positivos desde el plasma hacia la sonda y que posteriormente se justifica a partir del propio modelo. Como resultados del mismo se han obtenido las distintas magnitudes que caracterizan a la vaina como son: la ca\u00edda de potencial, el campo el\u00e9ctrico, las densidades de las distintas especies cargadas y las curvas caracter\u00edsticas i-v, que permiten utilizar el modelo en la diagnosis de plasmas de baja presi\u00f3n y temperatura. Estas curvas caracter\u00edsticas se ajustan anal\u00edticamente seg\u00fan el radio y el potencial de la sonda, lo que permite reparametrizar el modelo seg\u00fan estos par\u00e1metros y determinar el potencial flotante de la sonda en el plasma. Tambi\u00e9n se estima el espesor de la vaina calculando d\u00f3nde se encuentra el borde de la misma seg\u00fan distintos criterios. En este punto se elabora un nuevo criterio muy intuitivo, el criterio de la curvatura que para el l\u00edmite de sondas de radios grandes coincide con el criterio de bohm para el caso de sondas planas. Por \u00faltimo, se estima en qu\u00e9 condiciones de radio de sonda, potencial de sonda y temperatura de iones positivos es aplicable nuestro modelo, mediante la condici\u00f3n denominada criterio cinem\u00e1tico-geom\u00e9trica y que valida las hip\u00f3tesis anteriores.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio de la vaina ionica de una sonda electrost\u00e1tica en plasmas electropositivos y electronegativos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio de la vaina ionica de una sonda electrost\u00e1tica en plasmas electropositivos y electronegativos <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Rut Morales Crespo <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 C\u00f3rdoba<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 10\/05\/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>Jeronimo Ballesteros Pastor<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: vicente Colomer viadel <\/li>\n<li>Fernando Guiberteau cabanillas (vocal)<\/li>\n<li> Cruz soto Jos\u00e9 Luis (vocal)<\/li>\n<li>melquiades Casas ruiz (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Rut Morales Crespo En esta tesis doctoral se elabora un modelo de la vaina i\u00f3nica positiva en [&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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