{"id":3330,"date":"2016-09-17T22:18:11","date_gmt":"2016-09-17T22:18:11","guid":{"rendered":"http:\/\/doctorexpres.ro\/?p=3330"},"modified":"2016-09-17T22:18:11","modified_gmt":"2016-09-17T22:18:11","slug":"stiati-ca-razele-x","status":"publish","type":"post","link":"https:\/\/doctorexpres.ro\/index.php\/2016\/09\/17\/stiati-ca-razele-x\/","title":{"rendered":"\u015etia\u0163i c\u0103 razele X&#8230;?"},"content":{"rendered":"<ul>\n<li style=\"text-align: justify;\">Razele X au fost descoperite \u00eent\u00eempl\u0103tor. Fizicianul german Wilhelm Roentgen, \u00een anul 1895, f\u0103cea experimente cu un tub catodic, c\u00eend a observat c\u0103 un panou fluorescent din laboratorul s\u0103u a \u00eenceput s\u0103 str\u0103luceasc\u0103. Fenomenul a ap\u0103rut \u015fi atunci c\u00eend tubul era acoperit cu o h\u00eertie neagr\u0103 \u015fi groas\u0103. Fizicianul \u015fi-a dat seama c\u0103 energia emis\u0103 de tub poate s\u0103 treac\u0103 prin obiecte, a\u015fa c\u0103 a a\u015fezat diverse lucruri \u00een fa\u0163a acestuia, ob\u0163in\u00eend acela\u015fi rezultat. \u00cen cele din urm\u0103, Roentgen \u015fi-a pus m\u00eena \u00een fa\u0163a tubului \u015fi cu mare uimire a constatat c\u0103 pe panoul fluorescent \u00ee\u015fi poate vedea oasele.<\/li>\n<li style=\"text-align: justify;\">Razele X reprezint\u0103 o form\u0103 de radia\u0163ie electromagnetic\u0103 penetrant\u0103, cu lungimi de und\u0103 mai mici dec\u00eet cele ale luminii, de la 0,01 la 10 nanometri, \u015fi frecven\u0163e de la 30 de petaher\u0163i la 30 de exaher\u0163i.<\/li>\n<li style=\"text-align: justify;\">Razele X pot cauza arsuri grave pe <a href=\"http:\/\/doctorexpres.ro\/index.php\/2016\/06\/18\/cele-10-plante-ale-pielii-sanatoase\/\" target=\"_blank\">piele<\/a>, \u00een cazul unei expuneri \u00eendelungate.<\/li>\n<li style=\"text-align: justify;\">Datorit\u0103 densit\u0103\u0163ii foarte mari, de 11.340 kg\/ metru cub, <strong>plumbul<\/strong> reprezint\u0103 cea mai bun\u0103 \u015fi mai folosit\u0103 protec\u0163ie \u00eempotriva razelor X, \u00een prezent.<\/li>\n<li style=\"text-align: justify;\"><a href=\"http:\/\/doctorexpres.ro\/index.php\/2016\/07\/04\/radiografiile-sanatatea-in-alb-si-negru\/\" target=\"_blank\">Razele X<\/a> au fost denumite astfel chiar de c\u0103tre Wilhelm Conrad Roentgen, deoarece nu \u015ftia cu exactitate de unde provin.<\/li>\n<li style=\"text-align: justify;\">\u00cen industrie, razele X s\u00eent folosite pentru verificarea calit\u0103\u0163ii sudurilor.<\/li>\n<li style=\"text-align: justify;\">Razele X s\u00eent utilizate \u015fi \u00een fotografie.<\/li>\n<li style=\"text-align: justify;\">Speciali\u015ftii scaneaz\u0103 picturile cu aparate cu raze X pentru a observa anumi\u0163i pigmen\u0163i \u015fi texturi greu perceptibile <a href=\"http:\/\/doctorexpres.ro\/index.php\/2016\/09\/08\/virusul-zika-supravietuieste-in-ochi\/\" target=\"_blank\">ochiului<\/a> uman.<\/li>\n<li style=\"text-align: justify;\">Verificarea camioanelor \u00een punctele de frontier\u0103 se face cu ajutorul dispozitivelor cu raze X. La fel, aparatele cu raze X s\u00eent obligatorii pentru operatiunile de check-in \u015fi verificarea bagajelor \u00een aeroporturi.<\/li>\n<li style=\"text-align: justify;\">\u00cen timpul celui de-al doilea mandat preziden\u0163ial al lui George W. Bush, armata SUA a dezvoltat o arm\u0103 bazat\u0103 pe utilizarea razelor X. Proiectul a fost ulterior abandonat.<\/li>\n<li style=\"text-align: justify;\">F\u0103r\u0103 microscoapele cu raze X n-am putea vedea obiectele imperceptibile pentru <a href=\"http:\/\/doctorexpres.ro\/index.php\/2016\/09\/16\/de-ce-se-zbate-ochiul\/\" target=\"_blank\">ochiul uman<\/a>.<\/li>\n<li style=\"text-align: justify;\">Folosirea razelor X \u00een terapia medical\u0103 se nume\u015fte radioterapie.<\/li>\n<li style=\"text-align: justify;\">Iodura de sodiu face ca razele X s\u0103 poat\u0103 fi vizibile.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Razele X au fost descoperite \u00eent\u00eempl\u0103tor. Fizicianul german Wilhelm Roentgen, \u00een anul 1895, f\u0103cea experimente cu un tub catodic, c\u00eend<\/p>\n","protected":false},"author":4,"featured_media":3331,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[1227],"tags":[2969,3494,3498,3497,3492,3496,3491,3489,3493,3490,3495],"class_list":["post-3330","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-stiati-ca","tag-descoperire-alzheimer","tag-intrebuintari-raze-x","tag-iodura-de-sodiu-raze-x","tag-lungime-de-unda-raze-x","tag-microscoape-raze-x","tag-radiatioactivitate-plumb","tag-radoterapie","tag-raze-x","tag-raze-x-check-in","tag-roentgen","tag-scanarea-picturilor-cu-raze-x"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u015etia\u0163i c\u0103 razele X...? - Doctor Expres<\/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:\/\/doctorexpres.ro\/index.php\/2016\/09\/17\/stiati-ca-razele-x\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u015etia\u0163i c\u0103 razele X...? - Doctor Expres\" \/>\n<meta property=\"og:description\" content=\"Razele X au fost descoperite \u00eent\u00eempl\u0103tor. 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