{"id":1414,"date":"2025-07-17T13:36:37","date_gmt":"2025-07-17T12:36:37","guid":{"rendered":"https:\/\/www.ujfi.fei.stuba.sk\/?p=1414"},"modified":"2025-08-07T12:56:51","modified_gmt":"2025-08-07T11:56:51","slug":"aplikacia-metody-monte-carlo-v-reaktorovej-fyzike","status":"publish","type":"post","link":"https:\/\/www.ujfi.fei.stuba.sk\/en\/aplikacia-metody-monte-carlo-v-reaktorovej-fyzike\/","title":{"rendered":"Aplik\u00e1cia met\u00f3dy Monte Carlo v reaktorovej fyzike"},"content":{"rendered":"\n

Met\u00f3da Monte Carlo je \u0161tatistick\u00e1 v\u00fdpo\u010dtov\u00e1 technika, ktor\u00fa u\u017e po\u010das druhej svetovej vojny vyvinuli matematici Stanis\u0142aw Ulam a John von Neumann v r\u00e1mci projektu Manhattan. N\u00e1zov tejto met\u00f3dy odkazuje na zn\u00e1me kas\u00edno v Monaku, \u010do poukazuje na jej princ\u00edp zalo\u017een\u00fd na n\u00e1hodnosti. Podstatou met\u00f3dy je simulovanie n\u00e1hodn\u00fdch javov prostredn\u00edctvom opakovan\u00fdch v\u00fdpo\u010dtov vyu\u017e\u00edvaj\u00facich v\u00fdkonn\u00fa po\u010d\u00edta\u010dov\u00fa techniku.<\/p>\n\n\n\n

V jadrovej fyzike sa t\u00e1to met\u00f3da pou\u017e\u00edva na simulovanie transportu neutr\u00f3nov v jadrovom reaktore. Namiesto rie\u0161enia zlo\u017eit\u00fdch transportn\u00fdch rovn\u00edc, met\u00f3da Monte Carlo virtu\u00e1lne napodob\u0148uje jednotliv\u00e9 f\u00e1zy \u017eivota neutr\u00f3nov \u2013 od ich vzniku cez zr\u00e1\u017eky a pohyb a\u017e po ich absorpciu \u010di \u00fanik zo syst\u00e9mu. Ka\u017ed\u00fd z t\u00fdchto krokov je zaznamen\u00e1van\u00fd a n\u00e1sledne \u0161tatisticky vyhodnocovan\u00fd.<\/p>\n\n\n\n

Na \u00dastave jadrov\u00e9ho a fyzik\u00e1lneho in\u017einierstva STU FEI sa t\u00e1to met\u00f3da pou\u017e\u00edva prostredn\u00edctvom zn\u00e1meho v\u00fdpo\u010dtov\u00e9ho k\u00f3du MCNP\u00ae [1]. Tento softv\u00e9r umo\u017e\u0148uje detailn\u00e9 modelovanie transportn\u00fdch procesov neutr\u00f3nov a \u010fal\u0161\u00edch \u010dast\u00edc, ako s\u00fa gama fot\u00f3ny, elektr\u00f3ny, prot\u00f3ny \u010di alfa \u010dastice. Vyu\u017e\u00edva sa pri detailn\u00fdch simul\u00e1ci\u00e1ch reaktorov typu VVER-440, pri bezpe\u010dnostn\u00fdch anal\u00fdzach skladovania a prepravy jadrov\u00e9ho paliva, ako aj pri v\u00fdpo\u010dtoch dozimetrov tlakovej n\u00e1doby reaktora.<\/p>\n\n\n\n

V\u00fdskumn\u00ed pracovn\u00edci \u00fastavu spolupracuj\u00fa s r\u00f4znymi partnermi, ako s\u00fa Slovensk\u00e9 elektr\u00e1rne \u010di V\u00daJE, a. s., pri\u010dom sa venuj\u00fa aj praktick\u00fdm aplik\u00e1ci\u00e1m met\u00f3dy Monte Carlo v oblasti reaktorovej fyziky, bezpe\u010dnostn\u00fdch anal\u00fdz a radia\u010dnej ochrany [2].<\/p>\n\n\n\n

<\/p>\n\n\n\n

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\"\"<\/figure>\n\n\n\n

Obr. 1: V\u00fdpo\u010det rozlo\u017eenia hustoty toku neutr\u00f3nov v akt\u00edvnej z\u00f3ne reaktora VVER-440<\/p>\n<\/div>\n<\/div>\n\n\n\n

[1] MCNP, https:\/\/mcnp.lanl.gov\/<\/a><\/p>\n\n\n\n

[2] FARKAS, G. – LIPKA, J. – HA\u0160\u010c\u00cdK, J. – SLUGE\u0147, V.: Computation of Ex-core Detector Weighting Functions for VVER-440 Using MCNP5. In: Nuclear Engineering and Design. Vol. 261, 2013. p. 226-231. ISSN 0029-5493.<\/p>\n\n\n\n

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

Met\u00f3da Monte Carlo je \u0161tatistick\u00e1 v\u00fdpo\u010dtov\u00e1 technika, ktor\u00fa u\u017e po\u010das druhej svetovej vojny vyvinuli matematici Stanis\u0142aw Ulam a John von Neumann v r\u00e1mci projektu Manhattan. N\u00e1zov tejto met\u00f3dy odkazuje na zn\u00e1me kas\u00edno v Monaku, \u010do poukazuje na jej princ\u00edp zalo\u017een\u00fd na n\u00e1hodnosti. Podstatou met\u00f3dy je simulovanie n\u00e1hodn\u00fdch javov prostredn\u00edctvom opakovan\u00fdch v\u00fdpo\u010dtov vyu\u017e\u00edvaj\u00facich v\u00fdkonn\u00fa po\u010d\u00edta\u010dov\u00fa techniku. V jadrovej fyzike sa t\u00e1to met\u00f3da pou\u017e\u00edva na simulovanie transportu neutr\u00f3nov v jadrovom reaktore. Namiesto rie\u0161enia zlo\u017eit\u00fdch transportn\u00fdch rovn\u00edc, met\u00f3da Monte Carlo virtu\u00e1lne napodob\u0148uje jednotliv\u00e9 f\u00e1zy \u017eivota neutr\u00f3nov \u2013 od ich vzniku cez zr\u00e1\u017eky a pohyb a\u017e po ich absorpciu \u010di \u00fanik zo syst\u00e9mu. Ka\u017ed\u00fd… <\/p>\n","protected":false},"author":1,"featured_media":1423,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-1414","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-jadrova-technika-a-energetika"],"_links":{"self":[{"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/posts\/1414","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/comments?post=1414"}],"version-history":[{"count":0,"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/posts\/1414\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/media\/1423"}],"wp:attachment":[{"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/media?parent=1414"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/categories?post=1414"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/tags?post=1414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}