{"id":17423,"date":"2020-06-13T17:33:27","date_gmt":"2020-06-13T17:33:27","guid":{"rendered":"https:\/\/www.radiation-dosimetry.org\/o-que-e-descricao-de-raio-gama-definicao\/"},"modified":"2020-07-20T07:05:13","modified_gmt":"2020-07-20T07:05:13","slug":"o-que-e-descricao-de-raio-gama-definicao","status":"publish","type":"post","link":"https:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-descricao-de-raio-gama-definicao\/","title":{"rendered":"O que \u00e9 descri\u00e7\u00e3o de raio gama &#8211; defini\u00e7\u00e3o"},"content":{"rendered":"<div class=\"entry-content\">\n<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-u-clearfix su-u-trim\">Os raios gama, tamb\u00e9m conhecidos como radia\u00e7\u00e3o gama, referem-se \u00e0 radia\u00e7\u00e3o eletromagn\u00e9tica (sem massa em repouso, sem carga) de energias muito altas.\u00a0Defini\u00e7\u00e3o de raios gama.\u00a0Dosimetria de Radia\u00e7\u00e3o<\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-60 lgc-tablet-grid-60 lgc-mobile-grid-100 lgc-equal-heights lgc-first\">\n<div class=\"inside-grid-column\"><strong>Os raios gama<\/strong>\u00a0, tamb\u00e9m conhecidos como\u00a0<strong>radia\u00e7\u00e3o gama<\/strong>\u00a0, referem-se \u00e0 radia\u00e7\u00e3o eletromagn\u00e9tica (sem massa em repouso, sem carga) de energias muito altas.\u00a0Os raios gama s\u00e3o\u00a0<a title=\"F\u00f3ton - Part\u00edcula Fundamental\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/fundamental-particles\/photon\/\">f\u00f3tons de<\/a>\u00a0alta energia\u00a0com comprimentos de onda muito curtos e, portanto, frequ\u00eancia muito alta.\u00a0Como os raios gama s\u00e3o em subst\u00e2ncia apenas f\u00f3tons de alta energia, eles s\u00e3o mat\u00e9ria muito penetrante e, portanto, biologicamente perigosos.\u00a0Os raios gama podem viajar milhares de p\u00e9s no ar e podem facilmente passar pelo corpo humano.\u00a0<strong>Os raios gama<\/strong>\u00a0s\u00e3o emitidos por\u00a0<a title=\"Estabilidade nuclear\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/nuclear-stability\/\">n\u00facleos inst\u00e1veis<\/a>\u00a0em sua transi\u00e7\u00e3o de um estado de alta energia para um estado mais baixo conhecido como decaimento gama.\u00a0Na maioria das fontes pr\u00e1ticas de laborat\u00f3rio, os estados nucleares excitados s\u00e3o criados no decaimento de um radionucl\u00eddeo pai, portanto, um decaimento gama normalmente<strong>acompanha outras\u00a0<a title=\"Formas de radia\u00e7\u00e3o ionizante\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radiation\/forms-ionizing-radiation\/\">formas de decaimento<\/a><\/strong>\u00a0, como o\u00a0<strong><a title=\"Formas de radia\u00e7\u00e3o ionizante\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radiation\/forms-ionizing-radiation\/\">decaimento<\/a><\/strong>\u00a0alfa ou beta. A radia\u00e7\u00e3o e tamb\u00e9m os raios gama est\u00e3o \u00e0 nossa volta.\u00a0Dentro, ao redor e acima do mundo em que vivemos. \u00c9 uma parte do nosso mundo natural que est\u00e1 aqui desde o nascimento do nosso planeta.\u00a0<strong>As fontes naturais de raios gama<\/strong>\u00a0na Terra s\u00e3o, entre outros, raios gama de radionucl\u00eddeos que ocorrem naturalmente, particularmente o pot\u00e1ssio-40.\u00a0O pot\u00e1ssio-40 \u00e9 um is\u00f3topo radioativo de pot\u00e1ssio que tem uma meia-vida muito longa de 1.251 \u00d7 10\u00a0<sup>9<\/sup> anos (compar\u00e1vel \u00e0 idade da Terra). Este is\u00f3topo pode ser encontrado no solo, \u00e1gua tamb\u00e9m na carne e banana. Este n\u00e3o \u00e9 o \u00fanico exemplo de fonte natural de raios gama.<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-40 lgc-tablet-grid-40 lgc-mobile-grid-100 lgc-equal-heights lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed\">\n<div class=\"su-spoiler-content su-u-clearfix su-u-trim\"><\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<figure id=\"attachment_11840\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-11840\"><a href=\"https:\/\/www.reactor-physics.com\/wp-content\/uploads\/2019\/05\/\"><img loading=\"lazy\" class=\"size-medium wp-image-11840 lazy-loaded\" src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/Barium-137-radionuclide-300x300.png\" alt=\"O b\u00e1rio-137m \u00e9 um produto de um produto de fiss\u00e3o comum - c\u00e9sio - 137. O principal raio gama do b\u00e1rio-137m \u00e9 o f\u00f3ton de 661keV.\" width=\"300\" height=\"300\" data-lazy-type=\"image\" data-src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/Barium-137-radionuclide-300x300.png\" \/><\/a><figcaption id=\"caption-attachment-11840\" class=\"wp-caption-text\">O b\u00e1rio-137m \u00e9 um produto de um produto de fiss\u00e3o comum &#8211; c\u00e9sio &#8211; 137. O principal raio gama do b\u00e1rio-137m \u00e9 o f\u00f3ton de 661keV.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights lgc-first\">\n<div class=\"inside-grid-column\"><\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \">\n<div class=\"inside-grid-column\"><\/div>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<footer class=\"entry-meta\"><\/footer>\n<footer><\/footer>\n<footer><\/footer>\n<footer>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.Este artigo \u00e9 baseado na tradu\u00e7\u00e3o autom\u00e1tica do artigo original em ingl\u00eas. Para mais informa\u00e7\u00f5es, consulte o artigo em ingl\u00eas. Voc\u00ea pode nos ajudar. Se voc\u00ea deseja corrigir a tradu\u00e7\u00e3o, envie-a para: translations@nuclear-power.com ou preencha o formul\u00e1rio de tradu\u00e7\u00e3o on-line. Agradecemos sua ajuda, atualizaremos a tradu\u00e7\u00e3o o mais r\u00e1pido poss\u00edvel. 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