{"id":19313,"date":"2025-09-02T15:43:47","date_gmt":"2025-09-02T13:43:47","guid":{"rendered":"https:\/\/amplitude-laser.com\/applications\/%application_category%\/proton-neutron-generation\/"},"modified":"2025-09-17T14:38:11","modified_gmt":"2025-09-17T12:38:11","slug":"generation-proton-neutron","status":"publish","type":"application","link":"https:\/\/amplitude-laser.com\/fr\/applications\/science-fr\/generation-proton-neutron\/","title":{"rendered":"G\u00e9n\u00e9ration de protons\/neutrons"},"content":{"rendered":"\n<p><strong>Les lasers intenses offrent la capacit\u00e9 unique de g\u00e9n\u00e9rer des \u00e9lectrons, des protons ou des neutrons dans une configuration compacte et avec des contraintes de radioprotection r\u00e9duites. Les m\u00e9canismes impliqu\u00e9s diff\u00e8rent d&rsquo;une particule \u00e0 l&rsquo;autre, mais tous reposent sur un laser \u00e0 haute intensit\u00e9. Lorsqu&rsquo;il est focalis\u00e9 sur une cible gazeuse ou solide, l&rsquo;impulsion laser g\u00e9n\u00e8re d&rsquo;abord un plasma, dans lequel les \u00e9lectrons subissent une forte acc\u00e9l\u00e9ration induite par le champ \u00e9lectrique \u00e9lev\u00e9 de l&rsquo;impulsion laser intense. Les \u00e9lectrons acc\u00e9l\u00e9r\u00e9s transf\u00e8rent ensuite leur \u00e9nergie \u00e0 des protons, des neutrons ou des particules alpha.<\/strong><\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:60%\">\n<h2 class=\"wp-block-heading\">G\u00e9n\u00e9ration de protons et de neutrons<\/h2>\n\n\n\n<p>Pour la g\u00e9n\u00e9ration de protons, parmi les nombreux proc\u00e9d\u00e9s utilis\u00e9s, le plus courant est l&rsquo;acc\u00e9l\u00e9ration normale de la cible (TNSA). Ce m\u00e9canisme utilise une feuille m\u00e9tallique fine de quelques microm\u00e8tres \u00e9clair\u00e9e par un faisceau intense focalis\u00e9, fournissant une \u00e9mission directionnelle de protons avec une \u00e9nergie de plusieurs MeV, une dur\u00e9e d&rsquo;impulsion courte et une petite taille de spot. La compacit\u00e9 et la directivit\u00e9 de la source rendent cette source de protons tr\u00e8s int\u00e9ressante pour cibler s\u00e9lectivement les tumeurs \u00e0 des fins th\u00e9rapeutiques.<\/p>\n\n\n\n<p>Pour la g\u00e9n\u00e9ration de neutrons, le processus repose sur la g\u00e9n\u00e9ration d&rsquo;\u00e9lectrons rapides ou de protons rapides, suivie d&rsquo;une r\u00e9action nucl\u00e9aire. Par cons\u00e9quent, le processus n\u00e9cessite dans les deux cas un laser \u00e0 haute intensit\u00e9 con\u00e7u pour l&rsquo;acc\u00e9l\u00e9ration des \u00e9lectrons par acc\u00e9l\u00e9ration laser-wakefield ou l&rsquo;acc\u00e9l\u00e9ration des protons par acc\u00e9l\u00e9ration par couche normale cible.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Expertise en mati\u00e8re de contraste temporel et d&rsquo;amplitude<\/h2>\n\n\n\n<p>Le processus de g\u00e9n\u00e9ration de protons est tr\u00e8s sensible au contraste temporel et \u00e0 la qualit\u00e9 temporelle, ce qui n\u00e9cessite des efforts sp\u00e9cifiques pour minimiser les pr\u00e9pulsions et le bruit de fond ASE d&rsquo;un c\u00f4t\u00e9, et la phase spectrale de l&rsquo;autre.<\/p>\n\n\n\n<p>Amplitude poss\u00e8de plus de 20 ans d&rsquo;exp\u00e9rience dans la m\u00e9trologie du contraste gr\u00e2ce \u00e0 son instrument d\u00e9di\u00e9, le Sequoia, qui a permis \u00e0 Amplitude d&rsquo;am\u00e9liorer le contraste des lasers p\u00e9tawatts \u00e0 base de Ti:Sa. Les techniques \u00e9taient initialement bas\u00e9es sur des absorbeurs saturables, puis sur XPW dans une architecture CPA double, et plus r\u00e9cemment sur un seeder OPCPA afin de r\u00e9pondre aux exigences de contraste pour une g\u00e9n\u00e9ration de protons efficace et fiable. Cette expertise est bien s\u00fbr applicable \u00e0 toutes les technologies d&rsquo;amplification, du TiSa \u00e0 l&rsquo;ytterbium, au n\u00e9odyme ou \u00e0 l&rsquo;amplification param\u00e9trique (OPCPA).<\/p>\n\n\n\n<p>De plus, Amplitude met en \u0153uvre le fa\u00e7onnage spectral et la correction de phase spectrale pour obtenir la meilleure compression temporelle et la puissance de cr\u00eate la plus \u00e9lev\u00e9e.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:40%\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"852\" height=\"600\" src=\"https:\/\/amplitude-laser.com\/wp-content\/uploads\/2025\/09\/proton-neutron-generation-science-amplitude-laser.webp\" alt=\"Proton Neutron generation lasers - Amplitude Laser\" class=\"wp-image-19190\" srcset=\"https:\/\/amplitude-laser.com\/wp-content\/uploads\/2025\/09\/proton-neutron-generation-science-amplitude-laser.webp 852w, https:\/\/amplitude-laser.com\/wp-content\/uploads\/2025\/09\/proton-neutron-generation-science-amplitude-laser-300x211.webp 300w, https:\/\/amplitude-laser.com\/wp-content\/uploads\/2025\/09\/proton-neutron-generation-science-amplitude-laser-768x541.webp 768w\" sizes=\"(max-width: 852px) 100vw, 852px\" \/><\/figure>\n<\/div>\n<\/div>\n","protected":false},"featured_media":19615,"template":"","application_category":[114],"class_list":["post-19313","application","type-application","status-publish","has-post-thumbnail","hentry","application_category-science-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>G\u00e9n\u00e9ration de protons\/neutrons - Amplitude<\/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:\/\/amplitude-laser.com\/fr\/applications\/science-fr\/generation-proton-neutron\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"G\u00e9n\u00e9ration de protons\/neutrons - Amplitude\" \/>\n<meta property=\"og:description\" content=\"Les lasers intenses offrent la capacit\u00e9 unique de g\u00e9n\u00e9rer des \u00e9lectrons, des protons ou des neutrons dans une configuration compacte et avec des contraintes de radioprotection r\u00e9duites. Les m\u00e9canismes impliqu\u00e9s diff\u00e8rent d&rsquo;une particule \u00e0 l&rsquo;autre, mais tous reposent sur un laser \u00e0 haute intensit\u00e9. Lorsqu&rsquo;il est focalis\u00e9 sur une cible gazeuse ou solide, l&rsquo;impulsion laser [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/amplitude-laser.com\/fr\/applications\/science-fr\/generation-proton-neutron\/\" \/>\n<meta property=\"og:site_name\" content=\"Amplitude\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-17T12:38:11+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/amplitude-laser.com\/wp-content\/uploads\/2025\/09\/image-30.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/amplitude-laser.com\\\/fr\\\/applications\\\/science-fr\\\/generation-proton-neutron\\\/\",\"url\":\"https:\\\/\\\/amplitude-laser.com\\\/fr\\\/applications\\\/science-fr\\\/generation-proton-neutron\\\/\",\"name\":\"G\u00e9n\u00e9ration de protons\\\/neutrons - Amplitude\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/amplitude-laser.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/amplitude-laser.com\\\/fr\\\/applications\\\/science-fr\\\/generation-proton-neutron\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/amplitude-laser.com\\\/fr\\\/applications\\\/science-fr\\\/generation-proton-neutron\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/amplitude-laser.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/image-30.jpg\",\"datePublished\":\"2025-09-02T13:43:47+00:00\",\"dateModified\":\"2025-09-17T12:38:11+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/amplitude-laser.com\\\/fr\\\/applications\\\/science-fr\\\/generation-proton-neutron\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/amplitude-laser.com\\\/fr\\\/applications\\\/science-fr\\\/generation-proton-neutron\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/amplitude-laser.com\\\/fr\\\/applications\\\/science-fr\\\/generation-proton-neutron\\\/#primaryimage\",\"url\":\"https:\\\/\\\/amplitude-laser.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/image-30.jpg\",\"contentUrl\":\"https:\\\/\\\/amplitude-laser.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/image-30.jpg\",\"width\":1024,\"height\":1024,\"caption\":\"Lasers for proton and neutron generation\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/amplitude-laser.com\\\/fr\\\/applications\\\/science-fr\\\/generation-proton-neutron\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/amplitude-laser.com\\\/fr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"G\u00e9n\u00e9ration de protons\\\/neutrons\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/amplitude-laser.com\\\/#website\",\"url\":\"https:\\\/\\\/amplitude-laser.com\\\/\",\"name\":\"Amplitude\",\"description\":\"Nothing But Ultrafast\",\"publisher\":{\"@id\":\"https:\\\/\\\/amplitude-laser.com\\\/#organization\"},\"alternateName\":\"Amplitude Laser\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/amplitude-laser.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/amplitude-laser.com\\\/#organization\",\"name\":\"Amplitude Laser\",\"alternateName\":\"Amplitude\",\"url\":\"https:\\\/\\\/amplitude-laser.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/amplitude-laser.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/amplitude-laser.com\\\/wp-content\\\/uploads\\\/2018\\\/10\\\/Amplitude.png\",\"contentUrl\":\"https:\\\/\\\/amplitude-laser.com\\\/wp-content\\\/uploads\\\/2018\\\/10\\\/Amplitude.png\",\"width\":999,\"height\":1182,\"caption\":\"Amplitude Laser\"},\"image\":{\"@id\":\"https:\\\/\\\/amplitude-laser.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"G\u00e9n\u00e9ration de protons\/neutrons - Amplitude","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/amplitude-laser.com\/fr\/applications\/science-fr\/generation-proton-neutron\/","og_locale":"fr_FR","og_type":"article","og_title":"G\u00e9n\u00e9ration de protons\/neutrons - Amplitude","og_description":"Les lasers intenses offrent la capacit\u00e9 unique de g\u00e9n\u00e9rer des \u00e9lectrons, des protons ou des neutrons dans une configuration compacte et avec des contraintes de radioprotection r\u00e9duites. Les m\u00e9canismes impliqu\u00e9s diff\u00e8rent d&rsquo;une particule \u00e0 l&rsquo;autre, mais tous reposent sur un laser \u00e0 haute intensit\u00e9. Lorsqu&rsquo;il est focalis\u00e9 sur une cible gazeuse ou solide, l&rsquo;impulsion laser [&hellip;]","og_url":"https:\/\/amplitude-laser.com\/fr\/applications\/science-fr\/generation-proton-neutron\/","og_site_name":"Amplitude","article_modified_time":"2025-09-17T12:38:11+00:00","og_image":[{"width":1024,"height":1024,"url":"https:\/\/amplitude-laser.com\/wp-content\/uploads\/2025\/09\/image-30.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/amplitude-laser.com\/fr\/applications\/science-fr\/generation-proton-neutron\/","url":"https:\/\/amplitude-laser.com\/fr\/applications\/science-fr\/generation-proton-neutron\/","name":"G\u00e9n\u00e9ration de protons\/neutrons - Amplitude","isPartOf":{"@id":"https:\/\/amplitude-laser.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/amplitude-laser.com\/fr\/applications\/science-fr\/generation-proton-neutron\/#primaryimage"},"image":{"@id":"https:\/\/amplitude-laser.com\/fr\/applications\/science-fr\/generation-proton-neutron\/#primaryimage"},"thumbnailUrl":"https:\/\/amplitude-laser.com\/wp-content\/uploads\/2025\/09\/image-30.jpg","datePublished":"2025-09-02T13:43:47+00:00","dateModified":"2025-09-17T12:38:11+00:00","breadcrumb":{"@id":"https:\/\/amplitude-laser.com\/fr\/applications\/science-fr\/generation-proton-neutron\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/amplitude-laser.com\/fr\/applications\/science-fr\/generation-proton-neutron\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/amplitude-laser.com\/fr\/applications\/science-fr\/generation-proton-neutron\/#primaryimage","url":"https:\/\/amplitude-laser.com\/wp-content\/uploads\/2025\/09\/image-30.jpg","contentUrl":"https:\/\/amplitude-laser.com\/wp-content\/uploads\/2025\/09\/image-30.jpg","width":1024,"height":1024,"caption":"Lasers for proton and neutron generation"},{"@type":"BreadcrumbList","@id":"https:\/\/amplitude-laser.com\/fr\/applications\/science-fr\/generation-proton-neutron\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/amplitude-laser.com\/fr\/"},{"@type":"ListItem","position":2,"name":"G\u00e9n\u00e9ration de protons\/neutrons"}]},{"@type":"WebSite","@id":"https:\/\/amplitude-laser.com\/#website","url":"https:\/\/amplitude-laser.com\/","name":"Amplitude","description":"Nothing But Ultrafast","publisher":{"@id":"https:\/\/amplitude-laser.com\/#organization"},"alternateName":"Amplitude Laser","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/amplitude-laser.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/amplitude-laser.com\/#organization","name":"Amplitude Laser","alternateName":"Amplitude","url":"https:\/\/amplitude-laser.com\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/amplitude-laser.com\/#\/schema\/logo\/image\/","url":"https:\/\/amplitude-laser.com\/wp-content\/uploads\/2018\/10\/Amplitude.png","contentUrl":"https:\/\/amplitude-laser.com\/wp-content\/uploads\/2018\/10\/Amplitude.png","width":999,"height":1182,"caption":"Amplitude Laser"},"image":{"@id":"https:\/\/amplitude-laser.com\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/amplitude-laser.com\/fr\/wp-json\/wp\/v2\/application\/19313","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/amplitude-laser.com\/fr\/wp-json\/wp\/v2\/application"}],"about":[{"href":"https:\/\/amplitude-laser.com\/fr\/wp-json\/wp\/v2\/types\/application"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/amplitude-laser.com\/fr\/wp-json\/wp\/v2\/media\/19615"}],"wp:attachment":[{"href":"https:\/\/amplitude-laser.com\/fr\/wp-json\/wp\/v2\/media?parent=19313"}],"wp:term":[{"taxonomy":"application_category","embeddable":true,"href":"https:\/\/amplitude-laser.com\/fr\/wp-json\/wp\/v2\/application_category?post=19313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}