{"id":18101,"date":"2020-06-26T23:28:26","date_gmt":"2020-06-26T23:28:26","guid":{"rendered":"https:\/\/www.radiation-dosimetry.org\/o-que-e-decaimento-de-protons-emissao-de-protons-definicao\/"},"modified":"2020-07-24T06:25:27","modified_gmt":"2020-07-24T06:25:27","slug":"o-que-e-decaimento-de-protons-emissao-de-protons-definicao","status":"publish","type":"post","link":"https:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-decaimento-de-protons-emissao-de-protons-definicao\/","title":{"rendered":"O que \u00e9 decaimento de pr\u00f3tons – Emiss\u00e3o de pr\u00f3tons – Defini\u00e7\u00e3o"},"content":{"rendered":"
\n
O decaimento de pr\u00f3tons \u00e9 um tipo raro de decaimento radioativo de n\u00facleos contendo excesso de pr\u00f3tons, no qual um pr\u00f3ton \u00e9 simplesmente ejetado do n\u00facleo.\u00a0Dosimetria de Radia\u00e7\u00e3o<\/div>\n<\/div>\n
<\/div>\n
\n
\n
\"Emiss\u00e3o<\/a>
Exemplo: decaimento de pr\u00f3tons e n\u00eautrons
\nFonte: JANIS (Software de informa\u00e7\u00e3o de dados nucleares baseado em Java);\u00a0Biblioteca de Dados Nucleares JEFF-3.1.1<\/figcaption><\/figure>\n

O decaimento de pr\u00f3tons<\/strong>\u00a0\u00e9 um tipo raro de decaimento radioativo de n\u00facleos contendo excesso de\u00a0pr\u00f3tons<\/a>\u00a0, no qual um pr\u00f3ton \u00e9 simplesmente ejetado do\u00a0n\u00facleo<\/a>\u00a0.\u00a0Este artigo descreve principalmente\u00a0a emiss\u00e3o espont\u00e2nea de pr\u00f3tons<\/strong>\u00a0(decaimento de pr\u00f3tons) e n\u00e3o descreve a decad\u00eancia de um pr\u00f3ton livre.\u00a0Observe que um pr\u00f3ton livre (um pr\u00f3ton n\u00e3o ligado a n\u00facleons ou el\u00e9trons) \u00e9 uma\u00a0part\u00edcula est\u00e1vel<\/strong>\u00a0que n\u00e3o se observa quebrar espontaneamente com outras part\u00edculas.<\/p>\n

Veja tamb\u00e9m:\u00a0Estabilidade do pr\u00f3ton<\/a><\/p>\n

A emiss\u00e3o de pr\u00f3tons ocorre nos nucl\u00eddeos mais ricos em pr\u00f3tons \/ com defici\u00eancia de n\u00eautrons (emiss\u00e3o imediata de pr\u00f3tons) e tamb\u00e9m nos estados de excita\u00e7\u00e3o mais altos de um n\u00facleo ap\u00f3s uma\u00a0deteriora\u00e7\u00e3o beta positiva<\/a>\u00a0.\u00a0Da mesma forma que na\u00a0emiss\u00e3o de n\u00eautrons<\/a>\u00a0, a taxa de emiss\u00e3o desses n\u00eautrons ap\u00f3s um decaimento beta positivo \u00e9 governada principalmente por decaimento beta, portanto, essa emiss\u00e3o \u00e9 conhecida como\u00a0emiss\u00e3o de pr\u00f3tons com atraso beta.<\/strong><\/p>\n

\"Decaimento<\/a>O mecanismo do processo de decaimento \u00e9 muito semelhante ao\u00a0decaimento alfa<\/a>\u00a0.\u00a0O decaimento de pr\u00f3tons tamb\u00e9m \u00e9 um\u00a0processo de tunelamento qu\u00e2ntico<\/a>\u00a0.\u00a0Para ser emitido, o pr\u00f3ton deve penetrar em uma barreira potencial.\u00a0Para que um pr\u00f3ton escape de um n\u00facleo, a energia de separa\u00e7\u00e3o de pr\u00f3tons deve ser negativa – o pr\u00f3ton \u00e9, portanto, desconectado e sai do n\u00facleo em um tempo finito.\u00a0Alguns n\u00facleos decaem por emiss\u00e3o dupla de pr\u00f3tons, como\u00a045<\/sup>\u00a0Fe.<\/p>\n

Se um\u00a0n\u00facleo<\/a>\u00a0decai por emiss\u00e3o de pr\u00f3tons,\u00a0os<\/a>\u00a0n\u00fameros\u00a0at\u00f4micos<\/a>\u00a0e de massa mudam em um e o n\u00facleo filha se torna um elemento diferente.\u00a0N\u00facleos que podem decair por esse modo s\u00e3o descritos como estando muito acima da linha de gotejamento de n\u00eautrons.\u00a0A emiss\u00e3o de pr\u00f3tons n\u00e3o \u00e9 vista em is\u00f3topos que ocorrem naturalmente.\u00a0Is\u00f3topos radioativos de pr\u00f3tons podem ser produzidos atrav\u00e9s de rea\u00e7\u00f5es nucleares, geralmente usando aceleradores de part\u00edculas.<\/p>\n<\/div>\n<\/div>\n

\n
\n
\n
<\/div>\n

……………………………………………………………………………………………………………………………….<\/p>\n

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. Obrigado.<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

O decaimento de pr\u00f3tons \u00e9 um tipo raro de decaimento radioativo de n\u00facleos contendo excesso de pr\u00f3tons, no qual um pr\u00f3ton \u00e9 simplesmente ejetado do n\u00facleo.\u00a0Dosimetria de Radia\u00e7\u00e3o Exemplo: decaimento de pr\u00f3tons e n\u00eautrons Fonte: JANIS (Software de informa\u00e7\u00e3o de dados nucleares baseado em Java);\u00a0Biblioteca de Dados Nucleares JEFF-3.1.1 O decaimento de pr\u00f3tons\u00a0\u00e9 um tipo … Ler mais<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[51],"tags":[],"yoast_head":"\nO que \u00e9 decaimento de pr\u00f3tons - Emiss\u00e3o de pr\u00f3tons - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"O decaimento de pr\u00f3tons \u00e9 um tipo raro de decaimento radioativo de n\u00facleos contendo excesso de pr\u00f3tons, no qual um pr\u00f3ton \u00e9 simplesmente ejetado do n\u00facleo. Dosimetria de Radia\u00e7\u00e3o\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-decaimento-de-protons-emissao-de-protons-definicao\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"O que \u00e9 decaimento de pr\u00f3tons - Emiss\u00e3o de pr\u00f3tons - Defini\u00e7\u00e3o\" \/>\n<meta property=\"og:description\" content=\"O decaimento de pr\u00f3tons \u00e9 um tipo raro de decaimento radioativo de n\u00facleos contendo excesso de pr\u00f3tons, no qual um pr\u00f3ton \u00e9 simplesmente ejetado do n\u00facleo. Dosimetria de Radia\u00e7\u00e3o\" \/>\n<meta property=\"og:url\" content=\"http:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-decaimento-de-protons-emissao-de-protons-definicao\/\" \/>\n<meta property=\"og:site_name\" content=\"Radiation Dosimetry\" \/>\n<meta property=\"article:published_time\" content=\"2020-06-26T23:28:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-07-24T06:25:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/Proton-and-Neutron-Emission-NEA-Janis-300x238.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\">\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\">\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\">\n\t<meta name=\"twitter:data2\" content=\"2 minutos\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.radiation-dosimetry.org\/#website\",\"url\":\"https:\/\/www.radiation-dosimetry.org\/\",\"name\":\"Radiation Dosimetry\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/www.radiation-dosimetry.org\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"ImageObject\",\"@id\":\"http:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-decaimento-de-protons-emissao-de-protons-definicao\/#primaryimage\",\"inLanguage\":\"pt-BR\",\"url\":\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/Proton-and-Neutron-Emission-NEA-Janis.png\",\"width\":754,\"height\":598,\"caption\":\"Exemple: \\u00e9mission de neutron Source: JANIS (logiciel d'information sur les donn\\u00e9es nucl\\u00e9aires bas\\u00e9 sur Java); La biblioth\\u00e8que de donn\\u00e9es nucl\\u00e9aires JEFF-3.1.1\"},{\"@type\":\"WebPage\",\"@id\":\"http:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-decaimento-de-protons-emissao-de-protons-definicao\/#webpage\",\"url\":\"http:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-decaimento-de-protons-emissao-de-protons-definicao\/\",\"name\":\"O que \\u00e9 decaimento de pr\\u00f3tons - Emiss\\u00e3o de pr\\u00f3tons - Defini\\u00e7\\u00e3o\",\"isPartOf\":{\"@id\":\"https:\/\/www.radiation-dosimetry.org\/#website\"},\"primaryImageOfPage\":{\"@id\":\"http:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-decaimento-de-protons-emissao-de-protons-definicao\/#primaryimage\"},\"datePublished\":\"2020-06-26T23:28:26+00:00\",\"dateModified\":\"2020-07-24T06:25:27+00:00\",\"author\":{\"@id\":\"https:\/\/www.radiation-dosimetry.org\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"O decaimento de pr\\u00f3tons \\u00e9 um tipo raro de decaimento radioativo de n\\u00facleos contendo excesso de pr\\u00f3tons, no qual um pr\\u00f3ton \\u00e9 simplesmente ejetado do n\\u00facleo. Dosimetria de Radia\\u00e7\\u00e3o\",\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-decaimento-de-protons-emissao-de-protons-definicao\/\"]}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.radiation-dosimetry.org\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\",\"name\":\"Nick Connor\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","_links":{"self":[{"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/posts\/18101"}],"collection":[{"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/comments?post=18101"}],"version-history":[{"count":0,"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/posts\/18101\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/media?parent=18101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/categories?post=18101"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/tags?post=18101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}