{"id":12791,"date":"2023-10-27T12:36:43","date_gmt":"2023-10-27T12:36:43","guid":{"rendered":"https:\/\/www.finapptech.com\/finappedia\/neutrone-termico-tn\/"},"modified":"2026-08-31T10:47:18","modified_gmt":"2026-08-31T10:47:18","slug":"neutron-thermique-tn","status":"publish","type":"glossary","link":"https:\/\/www.finapptech.com\/fr\/glossaire\/neutron-thermique-tn\/","title":{"rendered":"NEUTRON THERMIQUE (TN)"},"content":{"rendered":"<p>Le neutron thermique d\u00e9signe tout neutron libre (non li\u00e9 \u00e0 un noyau atomique) qui a une \u00e9nergie de mouvement moyenne (\u00e9nergie cin\u00e9tique) correspondant \u00e0 l&rsquo;\u00e9nergie moyenne des particules des mat\u00e9riaux environnants. Relativement lents et de faible \u00e9nergie, les neutrons thermiques pr\u00e9sentent des propri\u00e9t\u00e9s, telles que de grandes sections efficaces dans la fission, qui les rendent souhaitables dans certaines applications de r\u00e9action en cha\u00eene. De plus, les longueurs d&rsquo;onde de de Broglie des neutrons thermiques les rendent pr\u00e9cieux pour certaines applications d&rsquo;optique neutronique. Les neutrons thermiques sont produits en ralentissant les neutrons plus \u00e9nerg\u00e9tiques dans une substance appel\u00e9e mod\u00e9rateur apr\u00e8s qu&rsquo;ils ont \u00e9t\u00e9 \u00e9ject\u00e9s des noyaux atomiques lors de r\u00e9actions nucl\u00e9aires comme la fission<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le neutron thermique d\u00e9signe tout neutron libre (non li\u00e9 \u00e0 un noyau atomique) qui a une \u00e9nergie de mouvement moyenne (\u00e9nergie cin\u00e9tique) correspondant \u00e0 l&rsquo;\u00e9nergie moyenne des particules des mat\u00e9riaux environnants. Relativement lents et de faible \u00e9nergie, les neutrons thermiques pr\u00e9sentent des propri\u00e9t\u00e9s, telles que de grandes sections efficaces dans la fission, qui les rendent [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-12791","glossary","type-glossary","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Glossaire technique - Finapp<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.finapptech.com\/fr\/glossaire\/neutron-thermique-tn\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Glossaire technique - Finapp\" \/>\n<meta property=\"og:description\" content=\"Le neutron thermique d\u00e9signe tout neutron libre (non li\u00e9 \u00e0 un noyau atomique) qui a une \u00e9nergie de mouvement moyenne (\u00e9nergie cin\u00e9tique) correspondant \u00e0 l&rsquo;\u00e9nergie moyenne des particules des mat\u00e9riaux environnants. Relativement lents et de faible \u00e9nergie, les neutrons thermiques pr\u00e9sentent des propri\u00e9t\u00e9s, telles que de grandes sections efficaces dans la fission, qui les rendent [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.finapptech.com\/fr\/glossaire\/neutron-thermique-tn\/\" \/>\n<meta property=\"og:site_name\" content=\"Finapp\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/finapptech\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-31T10:47:18+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@Finapptech\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.finapptech.com\\\/fr\\\/glossaire\\\/neutron-thermique-tn\\\/\",\"url\":\"https:\\\/\\\/www.finapptech.com\\\/fr\\\/glossaire\\\/neutron-thermique-tn\\\/\",\"name\":\"Glossaire technique - Finapp\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.finapptech.com\\\/fr\\\/#website\"},\"datePublished\":\"2023-10-27T12:36:43+00:00\",\"dateModified\":\"2026-08-31T10:47:18+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.finapptech.com\\\/fr\\\/glossaire\\\/neutron-thermique-tn\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.finapptech.com\\\/fr\\\/glossaire\\\/neutron-thermique-tn\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.finapptech.com\\\/fr\\\/glossaire\\\/neutron-thermique-tn\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.finapptech.com\\\/fr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Glossary\",\"item\":\"https:\\\/\\\/www.finapptech.com\\\/fr\\\/glossaire\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"NEUTRON THERMIQUE (TN)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.finapptech.com\\\/fr\\\/#website\",\"url\":\"https:\\\/\\\/www.finapptech.com\\\/fr\\\/\",\"name\":\"Finapp\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.finapptech.com\\\/fr\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.finapptech.com\\\/fr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"name\":\"Finapp\",\"url\":\"https:\\\/\\\/www.finapptech.com\\\/fr\\\/\",\"alternateName\":\"Finapp\",\"description\":\"Finapp est une entreprise italienne qui d\u00e9veloppe une technologie brevet\u00e9e de d\u00e9tection des neutrons par rayons cosmiques (CRNS - Cosmic Ray Neutron Sensing) per le suivi non invasif, en temps r\u00e9el et \u00e0 grande \u00e9chelle de la teneur en eau du sol et de la neige. 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