{"id":2373,"date":"2026-06-24T13:54:03","date_gmt":"2026-06-24T11:54:03","guid":{"rendered":"https:\/\/www.icone-neutron.fr\/?page_id=2373"},"modified":"2026-06-25T12:44:57","modified_gmt":"2026-06-25T10:44:57","slug":"presto","status":"publish","type":"page","link":"https:\/\/www.icone-neutron.fr\/fr\/presto\/","title":{"rendered":"Presto"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"2373\" class=\"elementor elementor-2373\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d931164 e-flex e-con-boxed e-con e-parent\" data-id=\"d931164\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-69258ab elementor-widget elementor-widget-html\" data-id=\"69258ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<!DOCTYPE html>\r\n<html lang=\"fr\">\r\n<head>\r\n<meta charset=\"UTF-8\">\r\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\r\n\r\n<title>PRESTO - Instrument neutronique<\/title>\r\n\r\n<style>\r\nhtml{\r\n  scroll-behavior:smooth;\r\n  background:#f3f6fb;\r\n}\r\n\r\nbody{\r\n  margin:0;\r\n  font-family:system-ui,-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,sans-serif;\r\n  color:#1f2937;\r\n  line-height:1.7;\r\n}\r\n\r\n.instrument-content{\r\n  max-width:950px;\r\n  margin:0 auto;\r\n}\r\n\r\n\/* HEADER *\/\r\n.top-block{\r\n  background:#ffffff;\r\n  padding:70px 30px 50px;\r\n  border-bottom:1px solid #e5eaf2;\r\n}\r\n\r\n.instrument-hero{\r\n  display:flex;\r\n  flex-wrap:wrap;\r\n  gap:30px;\r\n  align-items:center;\r\n}\r\n\r\n.instrument-hero-text{\r\n  flex:1;\r\n  min-width:260px;\r\n}\r\n\r\n.instrument-hero h1{\r\n  margin:0;\r\n  font-size:48px;\r\n  font-weight:700;\r\n  color:#0d5cab;\r\n}\r\n\r\n.instrument-hero p{\r\n  margin-top:8px;\r\n  font-size:18px;\r\n  color:#5b6777;\r\n}\r\n\r\n.instrument-badge{\r\n  display:inline-block;\r\n  margin-top:15px;\r\n  padding:8px 16px;\r\n  border-radius:30px;\r\n  background:#eaf3ff;\r\n  color:#0d5cab;\r\n  font-size:14px;\r\n  font-weight:600;\r\n}\r\n\r\n\/* IMAGE *\/\r\n.instrument-image{\r\n  flex:1;\r\n  min-width:280px;\r\n}\r\n\r\n.instrument-image img{\r\n  width:100%;\r\n  border-radius:14px;\r\n  box-shadow:0 8px 22px rgba(0,0,0,0.15);\r\n}\r\n\r\n\/* SECTIONS *\/\r\n.section{\r\n  margin-top:25px;\r\n  padding:25px;\r\n  background:#ffffff;\r\n  border-radius:14px;\r\n  box-shadow:0 4px 14px rgba(0,0,0,0.05);\r\n}\r\n\r\n.section-title{\r\n  display:flex;\r\n  align-items:center;\r\n  gap:10px;\r\n  margin-bottom:15px;\r\n  font-size:20px;\r\n  font-weight:700;\r\n  color:#0d5cab;\r\n}\r\n\r\n.section-title::before{\r\n  content:\"\";\r\n  width:5px;\r\n  height:22px;\r\n  background:#0d5cab;\r\n  border-radius:3px;\r\n}\r\n\r\n.section p{\r\n  margin:0 0 12px;\r\n}\r\n\r\nstrong{\r\n  color:#0d5cab;\r\n}\r\n\r\n\/* BACK *\/\r\n.back-container{\r\n  max-width:950px;\r\n  margin:20px auto 0;\r\n}\r\n\r\n.back-link{\r\n  color:#0d5cab;\r\n  font-weight:600;\r\n  text-decoration:none;\r\n}\r\n<\/style>\r\n<\/head>\r\n\r\n<body>\r\n\r\n<div class=\"back-container\">\r\n  <a href=\"javascript:history.back()\" class=\"back-link\">\u2190 Retour<\/a>\r\n<\/div>\r\n\r\n<div class=\"instrument-content\">\r\n\r\n<div class=\"top-block\">\r\n\r\n  <div class=\"instrument-hero\">\r\n\r\n    <div class=\"instrument-hero-text\">\r\n      <h1>PRESTO<\/h1>\r\n      <p>Diffractom\u00e8tre neutronique pour l\u2019\u00e9tude des contraintes r\u00e9siduelles, de la texture et des mat\u00e9riaux complexes<\/p>\r\n\r\n      <div class=\"instrument-badge\">\r\n        Diffraction neutronique \u2022 Contraintes internes \u2022 Texture \u2022 Science des mat\u00e9riaux\r\n      <\/div>\r\n    <\/div>\r\n\r\n    <div class=\"instrument-image\">\r\n      <img decoding=\"async\" src=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/6\/6f\/Neutron_scattering_instrument_at_ILL.jpg\"\r\n           alt=\"Instrument de diffusion neutronique type PRESTO\">\r\n    <\/div>\r\n\r\n  <\/div>\r\n\r\n  <div class=\"section\">\r\n    <div class=\"section-title\">Aper\u00e7u scientifique<\/div>\r\n\r\n    <p>\r\n      PRESTO est un instrument de diffusion neutronique d\u00e9di\u00e9 \u00e0 l\u2019\u00e9tude de la structure et des contraintes\r\n      internes des mat\u00e9riaux \u00e0 l\u2019\u00e9chelle atomique.\r\n    <\/p>\r\n\r\n    <p>\r\n      Il exploite la diffraction des neutrons pour analyser les distances interatomiques et leurs variations,\r\n      permettant de d\u00e9terminer les contraintes r\u00e9siduelles sans d\u00e9truire l\u2019\u00e9chantillon.\r\n    <\/p>\r\n\r\n    <p>\r\n      PRESTO combine ainsi analyse structurale et acc\u00e8s aux propri\u00e9t\u00e9s m\u00e9caniques internes des mat\u00e9riaux.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <div class=\"section\">\r\n    <div class=\"section-title\">Principe de fonctionnement<\/div>\r\n\r\n    <p>\r\n      Un faisceau de neutrons est envoy\u00e9 sur un mat\u00e9riau. Les neutrons diffract\u00e9s sont analys\u00e9s en angle et en \u00e9nergie.\r\n    <\/p>\r\n\r\n    <p>\r\n      Toute variation du r\u00e9seau cristallin indique une d\u00e9formation interne, permettant de reconstruire\r\n      les contraintes pr\u00e9sentes dans le mat\u00e9riau.\r\n    <\/p>\r\n\r\n    <p>\r\n      Gr\u00e2ce \u00e0 leur forte p\u00e9n\u00e9tration, les neutrons permettent d\u2019\u00e9tudier des pi\u00e8ces \u00e9paisses et industrielles.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <div class=\"section\">\r\n    <div class=\"section-title\">Informations g\u00e9n\u00e9rales<\/div>\r\n\r\n    <p><strong>Type :<\/strong> Diffractom\u00e8tre neutronique<\/p>\r\n    <p><strong>Technique :<\/strong> Diffraction en temps de vol (TOF)<\/p>\r\n    <p><strong>Objectif :<\/strong> Contraintes r\u00e9siduelles, texture, microstructure<\/p>\r\n  <\/div>\r\n\r\n<\/div>\r\n\r\n<div class=\"section\">\r\n  <div class=\"section-title\">Ce que PRESTO permet d\u2019\u00e9tudier<\/div>\r\n\r\n  <ul>\r\n    <li><strong>Structure atomique<\/strong> des mat\u00e9riaux<\/li>\r\n    <li><strong>Contraintes r\u00e9siduelles internes<\/strong><\/li>\r\n    <li><strong>Texture cristallographique<\/strong><\/li>\r\n    <li><strong>Microstructure des alliages<\/strong><\/li>\r\n    <li><strong>Comportement sous conditions extr\u00eames<\/strong><\/li>\r\n  <\/ul>\r\n<\/div>\r\n\r\n<div class=\"section\">\r\n  <div class=\"section-title\">Domaines d\u2019application<\/div>\r\n\r\n  <ul>\r\n    <li>A\u00e9ronautique et spatial<\/li>\r\n    <li>Industrie automobile<\/li>\r\n    <li>Fabrication additive (impression 3D)<\/li>\r\n    <li>Mat\u00e9riaux m\u00e9talliques avanc\u00e9s<\/li>\r\n    <li>Structures m\u00e9caniques complexes<\/li>\r\n  <\/ul>\r\n<\/div>\r\n\r\n<div class=\"section\">\r\n  <div class=\"section-title\">Importance scientifique<\/div>\r\n\r\n  <p>\r\n    PRESTO permet de relier la structure microscopique des mat\u00e9riaux \u00e0 leurs propri\u00e9t\u00e9s m\u00e9caniques macroscopiques.\r\n  <\/p>\r\n\r\n  <p>\r\n    Il constitue un outil essentiel pour optimiser les proc\u00e9d\u00e9s industriels et am\u00e9liorer la dur\u00e9e de vie des composants.\r\n  <\/p>\r\n<\/div>\r\n\r\n<\/div>\r\n\r\n<\/body>\r\n<\/html>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>PRESTO &#8211; Instrument neutronique \u2190 Retour PRESTO Diffractom\u00e8tre neutronique pour l\u2019\u00e9tude des contraintes r\u00e9siduelles, de la texture et des mat\u00e9riaux complexes Diffraction neutronique \u2022 Contraintes internes \u2022 Texture \u2022 Science des mat\u00e9riaux Aper\u00e7u scientifique PRESTO est un instrument de diffusion neutronique d\u00e9di\u00e9 \u00e0 l\u2019\u00e9tude de la structure et des contraintes internes des mat\u00e9riaux \u00e0 l\u2019\u00e9chelle [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2373","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.icone-neutron.fr\/fr\/wp-json\/wp\/v2\/pages\/2373","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.icone-neutron.fr\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.icone-neutron.fr\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.icone-neutron.fr\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.icone-neutron.fr\/fr\/wp-json\/wp\/v2\/comments?post=2373"}],"version-history":[{"count":20,"href":"https:\/\/www.icone-neutron.fr\/fr\/wp-json\/wp\/v2\/pages\/2373\/revisions"}],"predecessor-version":[{"id":2483,"href":"https:\/\/www.icone-neutron.fr\/fr\/wp-json\/wp\/v2\/pages\/2373\/revisions\/2483"}],"wp:attachment":[{"href":"https:\/\/www.icone-neutron.fr\/fr\/wp-json\/wp\/v2\/media?parent=2373"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}