{"id":4872,"date":"2022-11-26T15:14:28","date_gmt":"2022-11-26T15:14:28","guid":{"rendered":"https:\/\/www.africa-press.net\/guinee-equatoriale\/politique\/zeus-le-laser-surpuissant-sest-allume"},"modified":"2022-11-26T16:21:22","modified_gmt":"2022-11-26T16:21:22","slug":"zeus-le-laser-surpuissant-sest-allume","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/guinee-equatoriale\/toutes-les-actualites\/zeus-le-laser-surpuissant-sest-allume","title":{"rendered":"Zeus, le laser surpuissant s\u2019est allum\u00e9"},"content":{"rendered":"

Africa-Press – Guinee Equatoriale. <\/strong><\/span>Cet article est extrait du mensuel Sciences et Avenir \u2013 La Recherche n\u00b0909, date\u0301 novembre 2022.<\/p>\n

L\u2019universite\u0301 du Michigan a de\u0301marre\u0301 en octobre 2022 le laser le plus puissant des Etats-Unis.<\/p>\n

Un million de pe\u0301tawatts !<\/p>\n

Baptise\u0301 ZEUS (pour Zetawatt-Equivalent Ultrashort pulse laser System), il peut concentrer une puissance de 3 pe\u0301tawatts (PW), soit trois millions de gigawatts. Techniquement, il pourrait me\u0302me de\u0301passer le plus puissant du monde mis au point par Thale\u0300s qui a atteint les 10 PW en 2019. L\u2019une des expe\u0301riences programme\u0301es pour ZEUS consistera en effet a\u0300 simuler une puissance… d\u2019un zettawatt, soit un million de pe\u0301tawatts ! Pour cela, un faisceau d\u2019e\u0301lectrons a\u0300 haute e\u0301nergie sera propulse\u0301 en sens inverse pour \u201cpercuter\u201d la lumie\u0300re du laser.<\/p>\n

De nombreuses applications a\u0300 venir<\/p>\n

Avant cette expe\u0301rience extre\u0302me, et outre les nombreux projets sur la physique des plasmas ou les acce\u0301le\u0301rateurs de particules, les scientifiques tenteront d\u2019abord de cre\u0301er un nouveau type d\u2019impulsions de rayons X, extre\u0302mement courtes, qui permettraient d\u2019effectuer des radiographies me\u0301dicales avec des doses de rayons X tre\u0300s infe\u0301rieures aux techniques utilise\u0301es aujourd\u2019hui. De fait, \u201cZEUS aura un e\u0301norme e\u0301ventail d\u2019applications dans les domaines de la science, de la technologie, de l\u2019inge\u0301nierie et de la me\u0301decine\u201d, confirme Louise Willingale, directrice associe\u0301e de l\u2019installation. Le laser ne sera teste\u0301 a\u0300 pleine puissance qu\u2019a\u0300 partir de l\u2019automne 2023.<\/p>\n

Pour plus d’informations et d’analyses sur la Guinee Equatoriale<\/a>, suivez Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Guinee Equatoriale. Cet article est extrait du mensuel Sciences et Avenir \u2013 La Recherche n\u00b0909, date\u0301 novembre 2022. L\u2019universite\u0301 du Michigan a de\u0301marre\u0301 en octobre 2022 le laser le plus puissant des Etats-Unis. Un million de pe\u0301tawatts ! Baptise\u0301 ZEUS (pour Zetawatt-Equivalent Ultrashort pulse laser System), il peut concentrer une puissance de 3 […]<\/p>\n","protected":false},"author":82,"featured_media":4871,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[36,49,50],"class_list":["post-4872","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press","tag-africa-press-guinee-equatoriale","tag-guinee-equatoriale"],"yoast_head":"\nZeus, le laser surpuissant s\u2019est allum\u00e9 - Guin\u00e9e \u00e9quatoriale<\/title>\n<meta name=\"description\" content=\"Cet article est extrait du mensuel Sciences et Avenir \u2013 La Recherche n\u00b0909, date\u0301 novembre 2022. 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