{"id":3110,"date":"2020-12-17T11:44:55","date_gmt":"2020-12-17T10:44:55","guid":{"rendered":"http:\/\/www.e-rihs.it\/?page_id=3110"},"modified":"2024-04-05T13:45:57","modified_gmt":"2024-04-05T12:45:57","slug":"x-ray-tomography-2","status":"publish","type":"page","link":"https:\/\/www.e-rihs.it\/en\/x-ray-tomography-2\/","title":{"rendered":"X-ray tomography"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.7.7&#8243; _module_preset=&#8221;default&#8221;][et_pb_row column_structure=&#8221;1_3,2_3&#8243; _builder_version=&#8221;4.7.7&#8243; _module_preset=&#8221;default&#8221;][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.7.7&#8243; _module_preset=&#8221;default&#8221;][et_pb_image src=&#8221;http:\/\/www.e-rihs.it\/wp-content\/uploads\/2022\/03\/X-ray-tomography.jpg&#8221; title_text=&#8221;X-ray tomography&#8221; _builder_version=&#8221;4.7.7&#8243; _module_preset=&#8221;default&#8221;][\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;2_3&#8243; _builder_version=&#8221;4.7.7&#8243; _module_preset=&#8221;default&#8221;][et_pb_text _builder_version=&#8221;4.7.7&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p><strong>LABORATORIO:\u00a0 INFN CHNet<\/strong><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p><strong>NOME STRUMENTO <\/strong><\/p>\n<p>Tomografo X sviluppato presso i laboratori di INFN CHNet<\/p>\n<p>&nbsp;<\/p>\n<p><strong>INFORMAZIONI GENERALI<\/strong><\/p>\n<p>La Tomografia Assiale Computerizzata (TAC) con raggi X \u00e8 una tecnica diagnostica non distruttiva in grado di visualizzare in 3D la struttura interna degli oggetti analizzati. Tipicamente la TAC si esegue su beni mobili (molto raramente e con sistemi progettati ad hoc, dotati di una sorgente di raggi X con energia di qualche MeV, pu\u00f2 essere effettuata su elementi architettonici come pali o colonne, o grandi statue, ma solo se attorno a questi c\u2019\u00e8 spazio sufficiente per montare il sistema e se gli spessori e i materiali lo permettono).<\/p>\n<p>La TAC \u00e8 adatta a una grande variet\u00e0 di manufatti e di materiali, ma difficilmente, con uno stesso sistema, si potranno effettuare analisi su tutte le tipologie di oggetti. Le maggiori limitazioni sono date dalla densit\u00e0 del materiale (metalli), dallo spessore totale medio (marmo pieno), dall\u2019ingombro (grandi oggetti).<\/p>\n<p>I sistemi sviluppati presso i laboratori di CHNet sono adatti a materiali medio-leggeri come legno, argilla, terracotta etc&#8230; e rendono possibile effettuare analisi sia su statue che su dipinti su tavola. La TAC misura di fatto la densit\u00e0 locale del materiale ma ha una capacit\u00e0 di distinzione limitata tra i materiali. Si differenziano chiaramente tra loro i materiali con densit\u00e0 sufficientemente diversa: metalli leggeri da metalli pesanti, legno da metallo, cavit\u00e0 dal pieno, stucco su legno etc.. Sono stati sviluppati due sistemi portatili, uno per oggetti di dimensioni medio-piccole, l\u2019altro per grandi oggetti.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>DETTAGLI TECNICI<\/strong><\/p>\n<p><u>Sistema trasportabile ad alta risoluzione per oggetti di medie dimensioni<\/u><\/p>\n<ul>\n<li>Rivelatore montato su un sistema di traslazione costituito da 2 assi ortogonali con corsa di 30 cm<\/li>\n<li>Detector: flat panel VARIAN PS2520D<\/li>\n<li>FOV: 25 x 20 cm<sup>2<\/sup><\/li>\n<li>Pixel size: 127 \u03bcm<\/li>\n<\/ul>\n<p><u>Sistema mobile per RX\/CT di grandi oggetti<\/u><\/p>\n<ul>\n<li>Sistema a due assi ortogonali, ciascuno con una corsa di 1.5 m, su cui \u00e8 montato un flat-panel.<\/li>\n<li>Il sistema \u00e8 trasportabile in situ per mezzo di un furgone con vano di carico di almeno 2 m di profondit\u00e0.<\/li>\n<li>La sorgente abitualmente utilizzata \u00e8 un tubo RX Gilardoni ad ampio cono di emissione con tensione massima 200 kVp.<\/li>\n<li>Detector: Flat-panel Hamamatsu C10900D<\/li>\n<li>FOV: 12 x 12 cm<sup>2<\/sup><\/li>\n<li>Pixel size: 100 \u03bcm<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Referenti:<br \/> Lisa Castelli\u00a0\u00a0<a href=\"lisa.castelli@fi.infn.it\">lisa.castelli@fi.infn.it<\/a><br \/> Francesco Taccetti\u00a0\u00a0<a href=\"ftaccetti@fi.infn.it\">ftaccetti@fi.infn.it<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"http:\/\/www.e-rihs.it\/wp-content\/uploads\/2022\/02\/MOLAB_TomografiaX_ita.pdf\" rel=\"attachment wp-att-4726\">Scarica la scheda completa<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>LABORATORIO:\u00a0 INFN CHNet \u00a0 NOME STRUMENTO Tomografo X sviluppato presso i laboratori di INFN CHNet &nbsp; INFORMAZIONI GENERALI La Tomografia [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-3110","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>X-ray tomography | E-RIHS.it<\/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:\/\/www.e-rihs.it\/en\/x-ray-tomography-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"X-ray tomography | E-RIHS.it\" \/>\n<meta property=\"og:description\" content=\"LABORATORIO:\u00a0 INFN CHNet \u00a0 NOME STRUMENTO Tomografo X sviluppato presso i laboratori di INFN CHNet &nbsp; 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