{"id":15793,"date":"2020-01-19T23:12:18","date_gmt":"2020-01-19T23:12:18","guid":{"rendered":"https:\/\/www.radiation-dosimetry.org\/quest-ce-que-le-radon-220-thoron-rayonnement-dose-definition\/"},"modified":"2020-07-15T11:06:55","modified_gmt":"2020-07-15T11:06:55","slug":"quest-ce-que-le-radon-220-thoron-rayonnement-dose-definition","status":"publish","type":"post","link":"https:\/\/www.radiation-dosimetry.org\/fr\/quest-ce-que-le-radon-220-thoron-rayonnement-dose-definition\/","title":{"rendered":"Qu&rsquo;est-ce que le radon 220 &#8211; Thoron &#8211; rayonnement &#8211; dose &#8211; d\u00e9finition"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-u-clearfix su-u-trim\">Le radon-220 est un radio-isotope du radon.\u00a0Le radon-220 est commun\u00e9ment appel\u00e9 thoron, car il s&rsquo;agit d&rsquo;un produit de d\u00e9sint\u00e9gration naturel de l&rsquo;isotope du thorium le plus stable (thorium-232).\u00a0Dosim\u00e9trie des rayonnements<\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<p><strong>Le radon-220<\/strong>\u00a0est un radio-isotope du radon.\u00a0Le radon-220 est commun\u00e9ment appel\u00e9\u00a0<strong>thoron<\/strong>\u00a0, car il s&rsquo;agit d&rsquo;un produit de d\u00e9sint\u00e9gration naturel de l&rsquo;isotope du thorium le plus stable (\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/nuclear-fuel\/thorium\/\">thorium-232<\/a>\u00a0).\u00a0Le radon-220 fait partie de la\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/radioactive-decay-chain\/radioactive-series-radioactive-cascade\/thorium-series\/\">s\u00e9rie<\/a>\u00a0du\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/radioactive-decay-chain\/radioactive-series-radioactive-cascade\/thorium-series\/\">thorium<\/a>\u00a0.<\/p>\n<p>Tous les isotopes du radon sont\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/\">radioactifs<\/a>\u00a0, mais les deux isotopes du\u00a0<strong>radon radon-222<\/strong>\u00a0et\u00a0<strong>radon-220<\/strong>\u00a0sont tr\u00e8s importants du point de vue de la radioprotection.<\/p>\n<ul>\n<li>\n<figure id=\"attachment_25771\" class=\"wp-caption alignright\" aria-describedby=\"caption-attachment-25771\"><a href=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/radon-and-thoron.png\"><img loading=\"lazy\" class=\"size-medium wp-image-25771 lazy-loaded\" src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/radon-and-thoron-300x300.png\" alt=\"radon et thoron\" width=\"300\" height=\"300\" data-lazy-type=\"image\" data-src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/radon-and-thoron-300x300.png\" \/><\/a><figcaption id=\"caption-attachment-25771\" class=\"wp-caption-text\">Source: JANIS (Java-based Nuclear Data Information Software);\u00a0ENDF \/ B-VII.1<\/figcaption><\/figure>\n<p><strong>Radon-222<\/strong>\u00a0.\u00a0L&rsquo;isotope du radon 222 est un produit de d\u00e9sint\u00e9gration naturel de l&rsquo;isotope de l&rsquo;uranium le plus stable (l&rsquo;uranium 238), il fait donc partie de la\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/radioactive-decay-chain\/radioactive-series-radioactive-cascade\/uranium-series\/\">s\u00e9rie<\/a>\u00a0de l&rsquo;\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/radioactive-decay-chain\/radioactive-series-radioactive-cascade\/uranium-series\/\">uranium<\/a>\u00a0.<\/li>\n<li><strong>Radon-220<\/strong>\u00a0.\u00a0L&rsquo;isotope du radon-220, commun\u00e9ment appel\u00e9\u00a0<strong>thoron<\/strong>\u00a0, est un produit de d\u00e9sint\u00e9gration naturelle de l&rsquo;isotope du thorium le plus stable (\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/nuclear-fuel\/thorium\/\">thorium-232<\/a>\u00a0), il fait donc partie de la\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/radioactive-decay-chain\/radioactive-series-radioactive-cascade\/thorium-series\/\">s\u00e9rie<\/a>\u00a0du\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/radioactive-decay-chain\/radioactive-series-radioactive-cascade\/thorium-series\/\">thorium<\/a>\u00a0.<\/li>\n<\/ul>\n<p>Il est important de noter que le radon est un\u00a0<strong>gaz noble<\/strong>\u00a0, alors que tous ses produits de d\u00e9sint\u00e9gration sont des\u00a0<strong>m\u00e9taux<\/strong>\u00a0.\u00a0Le principal m\u00e9canisme d&rsquo;entr\u00e9e du radon dans l&rsquo;atmosph\u00e8re est la\u00a0<strong>diffusion \u00e0 travers le sol<\/strong>\u00a0.\u00a0En tant que gaz, le radon se diffuse \u00e0 travers les roches et le sol.\u00a0Lorsque le radon se d\u00e9sint\u00e8gre, les isotopes m\u00e9talliques filles sont des ions qui seront attach\u00e9s \u00e0 d&rsquo;autres mol\u00e9cules comme l&rsquo;eau et aux particules d&rsquo;a\u00e9rosol dans l&rsquo;air.\u00a0Par cons\u00e9quent, toutes les discussions sur les concentrations de radon dans l&rsquo;environnement se r\u00e9f\u00e8rent au\u00a0<strong>radon-222<\/strong>.\u00a0Alors que le taux de production moyen de radon-220 (thoron) est \u00e0 peu pr\u00e8s le m\u00eame que celui du radon-222, la quantit\u00e9 de radon-220 dans l&rsquo;environnement est bien inf\u00e9rieure \u00e0 celle du radon-222 en raison d&rsquo;une demi-vie beaucoup plus courte ( il a moins de temps pour diffuser) du radon-222 (55 secondes, contre 3,8 jours respectivement).\u00a0Le radon-220 a tout simplement moins de chances de s&rsquo;\u00e9chapper du substratum rocheux.<\/p>\n<p>Voir aussi:\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/radiation-protection\/sources-of-radiation\/radon-health-effects-health-risks\/\">Radon &#8211; Effets sur la sant\u00e9<\/a><\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-arrow\" data-anchor=\"References\">\n<div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><\/div>\n<p>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p>Cet article est bas\u00e9 sur la traduction automatique de l&rsquo;article original en anglais. Pour plus d&rsquo;informations, voir l&rsquo;article en anglais. Pouvez vous nous aider Si vous souhaitez corriger la traduction, envoyez-la \u00e0 l&rsquo;adresse: translations@nuclear-power.com ou remplissez le formulaire de traduction en ligne. Nous appr\u00e9cions votre aide, nous mettrons \u00e0 jour la traduction le plus rapidement possible. Merci<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Le radon-220 est un radio-isotope du radon.\u00a0Le radon-220 est commun\u00e9ment appel\u00e9 thoron, car il s&rsquo;agit d&rsquo;un produit de d\u00e9sint\u00e9gration naturel de l&rsquo;isotope du thorium le plus stable (thorium-232).\u00a0Dosim\u00e9trie des rayonnements Le radon-220\u00a0est un radio-isotope du radon.\u00a0Le radon-220 est commun\u00e9ment appel\u00e9\u00a0thoron\u00a0, car il s&rsquo;agit d&rsquo;un produit de d\u00e9sint\u00e9gration naturel de l&rsquo;isotope du thorium le plus stable &#8230; <a title=\"Qu&rsquo;est-ce que le radon 220 &#8211; Thoron &#8211; rayonnement &#8211; dose &#8211; d\u00e9finition\" class=\"read-more\" href=\"https:\/\/www.radiation-dosimetry.org\/fr\/quest-ce-que-le-radon-220-thoron-rayonnement-dose-definition\/\" aria-label=\"En savoir plus sur Qu&rsquo;est-ce que le radon 220 &#8211; Thoron &#8211; rayonnement &#8211; dose &#8211; d\u00e9finition\">Lire la suite<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[49],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qu&#039;est-ce que le radon 220 - Thoron - rayonnement - dose - d\u00e9finition<\/title>\n<meta name=\"description\" content=\"Le radon-220 est un radio-isotope du radon. 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