{"id":670,"date":"2023-12-28T14:38:32","date_gmt":"2023-12-28T14:38:32","guid":{"rendered":"https:\/\/web.infn.it\/TechTransfer\/?post_type=portfolio_page&#038;p=670"},"modified":"2024-07-11T13:55:05","modified_gmt":"2024-07-11T13:55:05","slug":"optorad","status":"publish","type":"portfolio_page","link":"https:\/\/web.infn.it\/TechTransfer\/portfolio_page\/optorad\/","title":{"rendered":"OPTORAD"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;grid&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221; z_index=&#8221;&#8221;][vc_column][vc_raw_html]JTVCd3BzZW9fYnJlYWRjcnVtYiU1RA==[\/vc_raw_html][vc_empty_space][vc_column_text]<\/p>\n<h1 class=\"p1\">OPTORAD<\/h1>\n<p>[\/vc_column_text][vc_empty_space][\/vc_column][\/vc_row][vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;grid&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221; z_index=&#8221;&#8221;][vc_column width=&#8221;2\/3&#8243;][vc_empty_space][vc_column_text]Il progetto si propone di evolvere la metodica di lettura di pellicole radiocromiche in tempo reale, per ottimizzarla nella dosimetria in campo medico (radio e adroterapia, dosimetria ambientale e personale) e nel monitoraggio della dose in test di radiation hardness su componenti e materiali. Le pellicole radiocromiche sono pellicole autosviluppanti che cambiano colore se esposte a radiazioni ionizzanti. L\u2019utilizzo di queste pellicole in dosimetria si basa tradizionalmente su una lettura prima e dopo l\u2019esposizione a radiazioni ionizzanti mediante scanner commerciali che determinano il livello di annerimento della pellicola. Il produttore fornisce una curva di calibrazione dose di radiazione-livello di oscuramento con la quale si pu\u00f2 effettuare una misura quantitativa.[\/vc_column_text][vc_empty_space][vc_single_image image=&#8221;2161&#8243; img_size=&#8221;full&#8221; qode_css_animation=&#8221;&#8221;][vc_empty_space][vc_column_text]Questo metodo non permette per\u00f2 di conoscere la curva della dose di radiazione accumulata nel tempo, ma solo l\u2019integrale della dose accumulata dalla pellicola al termine dell\u2019esposizione. In pratica, se si espone la pellicola per un giorno alla radiazione e poi la si trova saturata, non si potr\u00e0 sapere in quanto tempo si \u00e8 raggiunta la dose di saturazione, ma solo che ha richiesto un tempo minore dell\u2019intervallo far le due letture. Inoltre, \u00e8 necessario esporre una superficie di pellicola sufficiente per poter effettuare la lettura mediante scanner (usualmente di almeno 1 cm<sup>2<\/sup>) e si deve poter accedere al sito prima e dopo l\u2019irraggiamento.<\/p>\n<p>Il progetto vuole superare le limitazioni della lettura tradizionale e propone un sistema a fibra ottica che permette la determinazione delle caratteristiche tramite lettura in tempo reale e da postazione remota. L\u2019invenzione consiste nell\u2019illuminare la pellicola radiocromica durante l&#8217;esposizione a radiazioni ionizzanti, e leggere il cambiamento di colore della pellicola dovuto alla dose di radiazione accumulata durante l\u2019esposizione alla radiazione stessa. Una o pi\u00f9 fibre ottiche fungono da illuminatore della pellicola, mentre altre fibre ottiche fungono da lettore della luce retrodiffusa dalla pellicola o da opportuni materiali. Durante l\u2019esposizione a radiazioni ionizzanti la pellicola si scurisce e di conseguenza le fibre di lettura della luce raccolgono un segnale pi\u00f9 debole. Misurando il segnale luminoso di ritorno durante l\u2019esposizione, si pu\u00f2 determinare la variazione delle propriet\u00e0 ottiche della pellicola e quindi la dose di radiazioni ionizzanti assorbita.<\/p>\n<p>Essendo le fibre di dimensioni micrometriche, la dimensione necessaria di pellicola radiocromica per la misura \u00e8 molto ridotta, e quindi anche i costi relativi al consumo di materiale sono estremamente ridotti rispetto ai sistemi noti.[\/vc_column_text][vc_empty_space][\/vc_column][vc_column width=&#8221;1\/4&#8243; css=&#8221;.vc_custom_1703772967700{margin-bottom: 50px !important;background-color: #042d4c !important;}&#8221; el_class=&#8221;column_details_portfolio&#8221;][vc_column_text]<\/p>\n<h4><span style=\"color: #ffffff;\">INFO<\/span><\/h4>\n<p>[\/vc_column_text][vc_empty_space][vc_column_text css=&#8221;.vc_custom_1703774148970{background-color: #042d4c !important;}&#8221;]<\/p>\n<h5 style=\"color: #4196b4;\"><strong>RESPONSABILE PROGETTO<\/strong><\/h5>\n<p style=\"color: #fff; font-weight: bold;\">Pierluigi Casolaro<\/p>\n<p>[\/vc_column_text][vc_empty_space height=&#8221;21px&#8221;][vc_column_text css=&#8221;.vc_custom_1703774157187{background-color: #042d4c !important;}&#8221;]<\/p>\n<h5 style=\"color: #4196b4;\"><strong>ANNO<\/strong><\/h5>\n<p><strong><span style=\"color: #ffffff;\">2019<\/span><\/strong>[\/vc_column_text][vc_empty_space height=&#8221;21px&#8221;][vc_column_text css=&#8221;.vc_custom_1720705982442{background-color: #042d4c !important;}&#8221;]<\/p>\n<h5 style=\"color: #4196b4;\"><strong>STRUTTURE COINVOLTE<\/strong><\/h5>\n<p><span style=\"text-decoration: underline;\"><span style=\"color: #ffffff;\"><strong><a style=\"color: #ffffff; text-decoration: underline;\" href=\"https:\/\/www.na.infn.it\/\" target=\"_blank\" rel=\"noopener\">Sezione di Napoli<\/a><\/strong><\/span><\/span>[\/vc_column_text][vc_empty_space height=&#8221;21px&#8221;][vc_column_text css=&#8221;.vc_custom_1714312518084{background-color: #042d4c !important;}&#8221;]<\/p>\n<h5 style=\"color: #4196b4;\"><strong>SETTORI TECNOLOGICI<\/strong><\/h5>\n<p><strong><span style=\"color: #ffffff;\">Radioattivit\u00e0<\/span><\/strong>[\/vc_column_text][vc_empty_space height=&#8221;21px&#8221;][vc_column_text css=&#8221;.vc_custom_1712089400321{background-color: #042d4c !important;}&#8221;]<\/p>\n<h5 style=\"color: #4196b4;\"><strong>TECNOLOGIE COLLEGATE<\/strong><\/h5>\n<p><span style=\"text-decoration: underline;\"><a href=\"https:\/\/web.infn.it\/TechTransfer\/?portfolio_page=lettura-realtime-di-film-radiocromici\"><strong><span style=\"color: #ffffff; text-decoration: underline;\"> P_17.017 <\/span><\/strong><\/a><\/span>[\/vc_column_text][vc_empty_space height=&#8221;21px&#8221;][vc_row_inner row_type=&#8221;row&#8221; type=&#8221;full_width&#8221; text_align=&#8221;left&#8221; css_animation=&#8221;&#8221;][vc_column_inner el_class=&#8221;riga_spazio_progetti&#8221;][\/vc_column_inner][\/vc_row_inner][vc_empty_space height=&#8221;21px&#8221;][vc_column_text css=&#8221;.vc_custom_1720706002111{background-color: #042d4c !important;}&#8221;]<\/p>\n<h5 style=\"color: #4196b4;\"><strong>CONTATTI<\/strong><\/h5>\n<p><span style=\"color: #ffffff;\">Per maggiori informazioni sul progetto, <\/span><a href=\"mailto:tto@lists.infn.it\"><span style=\"text-decoration: underline;\"><strong><span style=\"color: #ffffff; text-decoration: underline;\">SCRIVICI<\/span><\/strong><\/span><\/a>[\/vc_column_text][vc_empty_space height=&#8221;21px&#8221;][\/vc_column][\/vc_row][vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; 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