{"id":6995,"date":"2023-11-21T13:55:14","date_gmt":"2023-11-21T16:55:14","guid":{"rendered":"https:\/\/metrologia2023.org.br\/?page_id=6995"},"modified":"2023-11-21T14:00:35","modified_gmt":"2023-11-21T17:00:35","slug":"304985-artigo-cbmri-congresso-brasileiro-de-metrologia-das-radiacoes-ionizantes","status":"publish","type":"page","link":"https:\/\/metrologia2023.org.br\/?page_id=6995","title":{"rendered":"[304985]  Artigo &#8211; CBMRI \u2013 Congresso Brasileiro de Metrologia das Radia\u00e7\u00f5es Ionizantes"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"6995\" class=\"elementor elementor-6995\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a859281 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a859281\" data-element_type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;,&quot;background_background&quot;:&quot;classic&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7423d02\" data-id=\"7423d02\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7b2a5ec elementor-widget elementor-widget-rt-title\" data-id=\"7b2a5ec\" data-element_type=\"widget\" data-widget_type=\"rt-title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"rt-el-title section-heading-5 style5\">\t\r\n        <h2 class=\"rtin-title title-bold color-dark title-bar-1\">Detalhes do Artigo<\/h2>\t\r\n\t\t\t\t\r\n\t\t<svg\r\n\t\t\txmlns=\"http:\/\/www.w3.org\/2000\/svg\"\r\n\t\t\txmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"\r\n\t\t\twidth=\"66px\" height=\"13px\">\r\n\t\t\t<path fill-rule=\"evenodd\" class=\"section-title-style\"  fill=\"rgb(250, 208, 59)\"\r\n\t\t\td=\"M25.126,0.842 C27.611,0.782 29.246,3.193 30.826,5.523 C31.448,6.440 32.453,7.918 33.040,8.339 C33.608,7.891 34.543,6.365 35.122,5.419 C36.597,3.015 38.122,0.528 40.606,0.468 C43.090,0.406 44.725,2.817 46.307,5.148 C46.928,6.064 47.931,7.544 48.521,7.963 C49.087,7.515 50.023,5.989 50.602,5.044 C52.075,2.638 53.600,0.152 56.084,0.093 C59.437,0.011 63.576,5.360 65.744,8.556 L62.352,10.870 C60.198,7.700 57.362,4.637 56.231,4.231 C55.670 ,4.623 54.694,6.216 54.096,7.191 C52.624,9.596 51.100,12.082 48.614,12.142 C46.131,12.202 44.495,9.792 42.915,7.462 C42.292,6.545 41.288,5.067 40.700,4.646 C40.132,5.094 39.198,6.621 38.617,7.566 C37.143,9.970 35.619,12.457 33.137,12.517 C30.652,12.577 29.016,10.168 27.436,7.837 C26.812,6.921 25.810,5.443 25.222,5.022 C24.653,5.470 23.718,6.996 23.139,7.941 C21.664,10.346 20.140,12.834 17.656,12.893 C15.173,12.953 13.538,10.544 11.955,8.213 C11.314,7.268 10.267,5.723 9.688,5.361 C8.578,5.820 5.885,9.017 3.877,12.289 L0.383,10.141 C2.405,6.844 6.297,1.301 9.647,1.219 C12.132,1.159 13.768,3.568 15.349,5.900 C15.970,6.816 16.973,8.294 17.561,8.714 \" \/>\r\n\t\t<\/svg>\r\n<\/div>\r\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ee41ff elementor-widget elementor-widget-heading\" data-id=\"6ee41ff\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.17.0 - 18-10-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h3 class=\"elementor-heading-title elementor-size-default\">[304985]  Implanta\u00e7\u00e3o do M\u00e9todo da Substitui\u00e7\u00e3o para Calibra\u00e7\u00e3o de C\u00e2maras de Ioniza\u00e7\u00e3o do Tipo Po\u00e7o<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7d0c6e6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7d0c6e6\" data-element_type=\"section\" 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class=\"elementor-icon-wrapper\">\n\t\t\t<div class=\"elementor-icon\">\n\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-users\" viewBox=\"0 0 640 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M96 224c35.3 0 64-28.7 64-64s-28.7-64-64-64-64 28.7-64 64 28.7 64 64 64zm448 0c35.3 0 64-28.7 64-64s-28.7-64-64-64-64 28.7-64 64 28.7 64 64 64zm32 32h-64c-17.6 0-33.5 7.1-45.1 18.6 40.3 22.1 68.9 62 75.1 109.4h66c17.7 0 32-14.3 32-32v-32c0-35.3-28.7-64-64-64zm-256 0c61.9 0 112-50.1 112-112S381.9 32 320 32 208 82.1 208 144s50.1 112 112 112zm76.8 32h-8.3c-20.8 10-43.9 16-68.5 16s-47.6-6-68.5-16h-8.3C179.6 288 128 339.6 128 403.2V432c0 26.5 21.5 48 48 48h288c26.5 0 48-21.5 48-48v-28.8c0-63.6-51.6-115.2-115.2-115.2zm-223.7-13.4C161.5 263.1 145.6 256 128 256H64c-35.3 0-64 28.7-64 64v32c0 17.7 14.3 32 32 32h65.9c6.3-47.4 34.9-87.3 75.2-109.4z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-e1398bb\" data-id=\"e1398bb\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b562be6 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"b562be6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.17.0 - 18-10-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><strong><span style=\"color: #003366;\">Autores<\/span>: Vanessa Mondaini de Castro<\/strong>, Carlos Frederico Estrada Alvez, Maria Helena da Hora Marechal, M\u00e1rcio Alexandre Costa Cruz, Lu\u00eds Alexandre Gon\u00e7alves Magalh\u00e3es, Sandro Passos Leite<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4b6cff5 elementor-section-boxed elementor-section-height-default 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6.627-5.373 12-12 12H204c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h200c6.627 0 12 5.373 12 12zm0-96v24c0 6.627-5.373 12-12 12H204c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h200c6.627 0 12 5.373 12 12zm-252 12c0 19.882-16.118 36-36 36s-36-16.118-36-36 16.118-36 36-36 36 16.118 36 36zm0 96c0 19.882-16.118 36-36 36s-36-16.118-36-36 16.118-36 36-36 36 16.118 36 36zm0 96c0 19.882-16.118 36-36 36s-36-16.118-36-36 16.118-36 36-36 36 16.118 36 36z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-015c9d4\" data-id=\"015c9d4\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3092383 elementor-widget elementor-widget-text-editor\" data-id=\"3092383\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"color: #003366;\"><strong>Resumo: <\/strong><\/span>O Laborat\u00f3rio de Ci\u00eancias Radiol\u00f3gicas (LCR) da Universidade do Estado do Rio de Janeiro (UERJ) \u00e9 o \u00fanico no Brasil que realiza o servi\u00e7o de calibra\u00e7\u00e3o de c\u00e2maras de ioniza\u00e7\u00e3o do tipo po\u00e7o, utilizadas pelo usu\u00e1rio para determina\u00e7\u00e3o da taxa de kerma no ar (KR) de fontes de 192Ir de braquiterapia de alta taxa de dose. O valor do coeficiente de calibra\u00e7\u00e3o (NK) do conjunto dosim\u00e9trico do usu\u00e1rio \u00e9 determinado por meio do KR obtido por uma c\u00e2mara farmer utilizando o M\u00e9todo das M\u00faltiplas Dist\u00e2ncias (MMD). A determina\u00e7\u00e3o do KR da fonte por esse m\u00e9todo pode durar de quatro a seis horas, dependendo da atividade da fonte. Caso essa atividade esteja abaixo de 222 GBq (6 Ci), a determina\u00e7\u00e3o do KR pode se tornar invi\u00e1vel. Este trabalho apresenta o estudo realizado para implantar no LCR o M\u00e9todo da Substitui\u00e7\u00e3o (MS). A calibra\u00e7\u00e3o por meio do MS tem a vantagem de n\u00e3o depender da determina\u00e7\u00e3o do KR para a fonte utilizada na calibra\u00e7\u00e3o, apenas do coeficiente de calibra\u00e7\u00e3o do conjunto dosim\u00e9trico de refer\u00eancia. Atrav\u00e9s do MS, os conjuntos dosim\u00e9tricos dos usu\u00e1rios ser\u00e3o calibrados em compara\u00e7\u00e3o a um conjunto dosim\u00e9trico de refer\u00eancia que foi definido a partir do hist\u00f3rico de estabilidades que os conjuntos dosim\u00e9tricos do LCR possuem. A partir da escolha dessa c\u00e2mara de refer\u00eancia, foi poss\u00edvel avaliar as componentes de incertezas baseadas da equa\u00e7\u00e3o funcional do MS. As incertezas avaliadas para o NK do conjunto dosim\u00e9trico do usu\u00e1rio obtido por meio do MS, foi de \u00b1 2,2 %, k=2. Esse valor encontrado para o MS est\u00e1 compat\u00edvel com a incerteza do M\u00e9todo utilizado atualmente. Al\u00e9m da incerteza que mostra a viabilidade da aplica\u00e7\u00e3o do m\u00e9todo, foram feitos tr\u00eas testes para aplica\u00e7\u00e3o do MS em dados de calibra\u00e7\u00f5es dispostas no banco de dados do LCR. Todos os testes realizados, tiveram o objetivo de verificar a diferen\u00e7a entre os NK obtido por meio do MMD e o NK determinado a partir do MS. A maior diferen\u00e7a encontrada nos testes foi de 1,57 %. Isso mostra que os resultados do MS s\u00e3o equivalentes aqueles obtidos pelo MMD, considerando o intervalo de incerteza estimado para ambos os m\u00e9todos. Com os resultados obtidos neste trabalho, pode-se afirmar que MS pode ser utilizado no processo de calibra\u00e7\u00e3o de conjuntos dosim\u00e9tricos utilizados para determina\u00e7\u00e3o da taxa de kerma no ar de fontes de 192Ir de alta taxa de dose.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-76b6de0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"76b6de0\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5032960\" data-id=\"5032960\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-28b1ec7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"28b1ec7\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4d5a715\" data-id=\"4d5a715\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Detalhes do Artigo [304985] Implanta\u00e7\u00e3o do M\u00e9todo da Substitui\u00e7\u00e3o para Calibra\u00e7\u00e3o de C\u00e2maras de Ioniza\u00e7\u00e3o do Tipo Po\u00e7o Autores: Vanessa Mondaini de Castro, Carlos Frederico Estrada Alvez, Maria Helena da Hora Marechal, M\u00e1rcio Alexandre Costa Cruz, Lu\u00eds Alexandre Gon\u00e7alves Magalh\u00e3es, Sandro Passos Leite Resumo: O Laborat\u00f3rio de Ci\u00eancias Radiol\u00f3gicas (LCR) da Universidade do Estado do&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"_links":{"self":[{"href":"https:\/\/metrologia2023.org.br\/index.php?rest_route=\/wp\/v2\/pages\/6995"}],"collection":[{"href":"https:\/\/metrologia2023.org.br\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/metrologia2023.org.br\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/metrologia2023.org.br\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/metrologia2023.org.br\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6995"}],"version-history":[{"count":4,"href":"https:\/\/metrologia2023.org.br\/index.php?rest_route=\/wp\/v2\/pages\/6995\/revisions"}],"predecessor-version":[{"id":7003,"href":"https:\/\/metrologia2023.org.br\/index.php?rest_route=\/wp\/v2\/pages\/6995\/revisions\/7003"}],"wp:attachment":[{"href":"https:\/\/metrologia2023.org.br\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}