{"id":2000,"date":"2021-10-21T09:39:38","date_gmt":"2021-10-21T12:39:38","guid":{"rendered":"https:\/\/metrologia2021.org.br\/?p=2000"},"modified":"2021-10-21T09:39:38","modified_gmt":"2021-10-21T12:39:38","slug":"208330-medicao-do-espectro-de-neutrons-das-fontes-241amb-241amli-e-241amf","status":"publish","type":"post","link":"https:\/\/metrologia2021.org.br\/?p=2000","title":{"rendered":"[208330] Medi\u00e7\u00e3o do espectro de n\u00eautrons das fontes 241AmB, 241AmLi e 241AmF"},"content":{"rendered":"<p>[vc_row][vc_column][vc_text_separator title=&#8221;ARTIGO&#8221; i_icon_fontawesome=&#8221;fa fa-file-pdf-o&#8221; color=&#8221;om-accent-color-3&#8243; add_icon=&#8221;true&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<strong>Autor: <\/strong>Victor Rocha Carvalho, Walsan Wagner Pereira, Simone da Silva Fernandes, Karla Cristina de Souza Patr\u00e3o, Evaldo Sim\u00f5es da Fonseca<\/p>\n<p>[\/vc_column_text][vc_separator][vc_column_text]<strong>Resumo: <\/strong>A medi\u00e7\u00e3o do espectro de n\u00eautrons foi realizada atrav\u00e9s da metodologia das multiesferas de Bonner, que consiste em usar um detector de n\u00eautrons t\u00e9rmicos de 6LiI(Eu). As contagens de n\u00eautrons das fontes isot\u00f3picas 241AmB, 241AmLi e 241AmF foram realizadas com seis diferentes moderadores esf\u00e9ricos em torno do detector, e por meio dessas medi\u00e7\u00f5es foi obtido o espectro de n\u00eautrons atrav\u00e9s do software desenvolvido pelo laborat\u00f3rio de metrologia de n\u00eautrons do Instituto de Radioprote\u00e7\u00e3o e Dosimetria \u2013 LN\/IRD, NeutraLN que utiliza a t\u00e9cnica de redes neurais. A import\u00e2ncia da caracteriza\u00e7\u00e3o do espectro em energia das fontes citadas \u00e9 fundamental para a amplia\u00e7\u00e3o da capacidade de medi\u00e7\u00e3o do LN\/IRD, apesar das intensidades de emiss\u00e3o dessas fontes serem pequenas quando comparadas a outras fontes utilizadas para calibra\u00e7\u00e3o de dispositivos pela instala\u00e7\u00e3o, tais como: 241AmBe e 252Cf. Os valores m\u00e9dios dos equivalentes de dose ambiente dessas fontes isot\u00f3picas tamb\u00e9m s\u00e3o apresentados.<\/p>\n<p>[\/vc_column_text]<\/p>\n<p><span class=\"vc_btn2-container vc_btn2-center\"><br \/>\n<a class=\"vc_general vc_btn3 vc_btn3-size-xl vc_btn3-shape-square vc_btn3-style-classic vc_btn3-color-om-accent-color-3 vc_btn3-icon-left\" href=\"https:\/\/metrologia2021.org.br\/wp-content\/uploads\/2021\/10\/CBMRI_208330.pdf\"><span class=\"vc_btn3-inner\"><i class=\"vc_btn3-icon fa fa-file-pdf-o\"><\/i> Download do Artigo<\/span><\/a><br \/>\n<\/span><\/p>\n<p><!--[vc_text_separator title=\"V\u00cdDEO\" i_icon_fontawesome=\"fa fa-video-camera\" color=\"om-accent-color-3\" add_icon=\"true\"]\n<iframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/MhgZEfDDZcM\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>--><\/p>\n","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_text_separator title=&#8221;ARTIGO&#8221; i_icon_fontawesome=&#8221;fa fa-file-pdf-o&#8221; color=&#8221;om-accent-color-3&#8243; add_icon=&#8221;true&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]Autor: Victor Rocha Carvalho, Walsan Wagner Pereira, Simone da Silva Fernandes, Karla Cristina de Souza Patr\u00e3o, Evaldo Sim\u00f5es da Fonseca&hellip;<\/p>\n<p><a href=\"https:\/\/metrologia2021.org.br\/?p=2000\" class=\"read-more-link\"><span class=\"read-more-icon\"><\/span>Leia mais<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/metrologia2021.org.br\/index.php?rest_route=\/wp\/v2\/posts\/2000"}],"collection":[{"href":"https:\/\/metrologia2021.org.br\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/metrologia2021.org.br\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/metrologia2021.org.br\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/metrologia2021.org.br\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2000"}],"version-history":[{"count":1,"href":"https:\/\/metrologia2021.org.br\/index.php?rest_route=\/wp\/v2\/posts\/2000\/revisions"}],"predecessor-version":[{"id":2001,"href":"https:\/\/metrologia2021.org.br\/index.php?rest_route=\/wp\/v2\/posts\/2000\/revisions\/2001"}],"wp:attachment":[{"href":"https:\/\/metrologia2021.org.br\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2000"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/metrologia2021.org.br\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2000"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/metrologia2021.org.br\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2000"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}