{"id":717,"date":"2017-04-15T09:25:58","date_gmt":"2017-04-15T08:25:58","guid":{"rendered":"http:\/\/www.hhtec.eu\/hammer\/?page_id=717"},"modified":"2019-07-24T11:05:37","modified_gmt":"2019-07-24T10:05:37","slug":"davkovy-ekvivalent-h10","status":"publish","type":"page","link":"https:\/\/www.hhtec.eu\/hammer\/cs\/davkovy-ekvivalent-h10\/","title":{"rendered":"O m\u011b\u0159en\u00ed \u1e22*(10), H*(10)"},"content":{"rendered":"

HammeHead HH<\/strong><\/em> je m\u011b\u0159idlo, kter\u00e9 lze kalibrovat na r\u016fzn\u00e9\u00a0fyzik\u00e1ln\u00ed veli\u010diny pou\u017e\u00edvan\u00e9 v dozimetrii a radia\u010dn\u00ed ochran\u011b.<\/p>\n

Pro hodnocen\u00ed zevn\u00edho oz\u00e1\u0159en\u00ed osob se jako nejvhodn\u011bj\u0161\u00ed fyzik\u00e1ln\u00ed\u00a0 veli\u010dina jev\u00ed prostorov\u00fd d\u00e1vkov\u00fd ekvivalent H*(10), <\/em>kter\u00fd je d\u00e1n \u010dasov\u00fdm integr\u00e1lem p\u0159\u00edkonu prostorov\u00e9ho d\u00e1vkov\u00e9ho ekvivalentu \u1e22*(10).\u00a0<\/em>Jedn\u00e1 se o fyzik\u00e1ln\u00ed veli\u010dinu, kterou lze p\u0159i zevn\u00edm oz\u00e1\u0159en\u00ed pronikav\u00fdm ionizuj\u00edc\u00edm z\u00e1\u0159en\u00edm (gama) pou\u017e\u00edt k ohodnocen\u00ed biologick\u00fdch \u00fa\u010dink\u016f z\u00e1\u0159en\u00ed na \u010dlov\u011bka. Zm\u011b\u0159\u00edme-li hodnotu \u1e22*(10)\u00a0<\/em>v n\u011bjak\u00e9m m\u00edst\u011b, nap\u0159. na voln\u00e9m prostranstv\u00ed, lze potom z doby t<\/em> pobytu osob v tomto m\u00edst\u011b stanovit H*(10) prost\u00fdm sou\u010dinem:<\/em><\/p>\n

H*(10) =\u00a0\u1e22*(10) . t<\/em><\/p>\n

Zji\u0161t\u011bn\u00e1 hodnota H*(10) <\/em>potom p\u0159\u00edmo umo\u017e\u0148uje stanovit m\u00edru z\u00e1va\u017enosti oz\u00e1\u0159en\u00ed osob,\u00a0v\u00edce nap\u0159. na: Radiobiologie\/Radia\u010dn\u00ed ochrana\/ Efektivn\u00ed d\u00e1vka a prostorov\u00fd d\u00e1vkov\u00fd ekvivalent<\/a><\/p>\n

Hodnoty p\u0159\u00edkonu \u1e22*(10) do 1000 nSv\/h lze pova\u017eovat za n\u00edzk\u00e9, nad 1 mSv\/h je nutno pova\u017eovat za vysok\u00e9, v dan\u00e9m m\u00edst\u011b je nutno se nezdr\u017eovat.<\/em><\/p>\n

\u00a0<\/em>Pozn:<\/strong> Hodnoty \u1e22*(10)<\/em> pro terestri\u00e1ln\u00ed slo\u017eku p\u0159irozen\u00e9ho pozad\u00ed\u00a0v \u010cR se pohybuj\u00ed od 30 do 300 nSv\/h. Lokality s hodnotami\u00a0pod\u00a030 nSv\/h lze po\u017eadovat m\u00edsta s n\u00edzk\u00fdm terestri\u00e1ln\u00edm pozad\u00edm. P\u0159\u00edsp\u011bvek k \u1e22*(10)<\/em> od kosmick\u00e9ho z\u00e1\u0159en\u00ed bez vlivu neutron\u016f je cca 29 nSv\/h pro nadmo\u0159skou v\u00fd\u0161ku 200 m.n.m. P\u0159i letu letadlem na letov\u00e9 hladin\u011b 12 km pak\u00a02500 nSv\/h.<\/p>\n

Pozn.:<\/strong> Terestri\u00e1ln\u00ed slo\u017ekou se pro \u00fa\u010dely m\u011b\u0159en\u00ed s HammeHead HH<\/em> rozum\u00ed fotonov\u00e9 z\u00e1\u0159en\u00ed v\u00a0rozsahu energi\u00ed od 50\u00a0keV do 5\u00a0MeV, kdy horn\u00ed mez nep\u0159ekra\u010duj\u00ed \u017e\u00e1dn\u00e9 p\u0159\u00edrodn\u00ed ani um\u011bl\u00e9 radionuklidy s\u00a0polo\u010dasem p\u0159em\u011bny\u00a0v\u011bt\u0161\u00edm ne\u017e 1 minuta.<\/p>\n

Pozn.:<\/strong> Kosmickou slo\u017ekou se pro \u00fa\u010dely m\u011b\u0159en\u00ed s HammeHead HH<\/em>\u00a0rozum\u00ed\u00a0odezva HH sondy odpov\u00eddaj\u00edc\u00ed v detektoru absorbovan\u00e9 energii nad 5\u00a0MeV, kter\u00e1 v\u011bt\u0161inou poch\u00e1z\u00ed z\u00a0kosmick\u00e9ho z\u00e1\u0159en\u00ed (nad zemsk\u00fdm povrchem zejm\u00e9na mion\u016f). Vysokoenergetick\u00e1 slo\u017eka se\u00a0m\u016f\u017ee\u00a0i vyskytovat v okol\u00ed urychlova\u010d\u016f nebo neutronov\u00fdch zdroj\u016f.<\/p>\n","protected":false},"excerpt":{"rendered":"

HammeHead HH je m\u011b\u0159idlo, kter\u00e9 lze kalibrovat na r\u016fzn\u00e9\u00a0fyzik\u00e1ln\u00ed veli\u010diny pou\u017e\u00edvan\u00e9 v dozimetrii a radia\u010dn\u00ed ochran\u011b. Pro hodnocen\u00ed zevn\u00edho oz\u00e1\u0159en\u00ed osob se jako nejvhodn\u011bj\u0161\u00ed fyzik\u00e1ln\u00ed\u00a0 veli\u010dina jev\u00ed prostorov\u00fd d\u00e1vkov\u00fd ekvivalent H*(10), kter\u00fd je d\u00e1n \u010dasov\u00fdm integr\u00e1lem p\u0159\u00edkonu prostorov\u00e9ho d\u00e1vkov\u00e9ho ekvivalentu \u1e22*(10).\u00a0Jedn\u00e1 se o fyzik\u00e1ln\u00ed veli\u010dinu, kterou lze p\u0159i zevn\u00edm oz\u00e1\u0159en\u00ed pronikav\u00fdm ionizuj\u00edc\u00edm z\u00e1\u0159en\u00edm (gama) pou\u017e\u00edt … Pokra\u010dov\u00e1n\u00ed textu O m\u011b\u0159en\u00ed \u1e22*(10), H*(10)<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"spay_email":""},"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/P7T0YT-bz","_links":{"self":[{"href":"https:\/\/www.hhtec.eu\/hammer\/wp-json\/wp\/v2\/pages\/717"}],"collection":[{"href":"https:\/\/www.hhtec.eu\/hammer\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.hhtec.eu\/hammer\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.hhtec.eu\/hammer\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hhtec.eu\/hammer\/wp-json\/wp\/v2\/comments?post=717"}],"version-history":[{"count":8,"href":"https:\/\/www.hhtec.eu\/hammer\/wp-json\/wp\/v2\/pages\/717\/revisions"}],"predecessor-version":[{"id":1373,"href":"https:\/\/www.hhtec.eu\/hammer\/wp-json\/wp\/v2\/pages\/717\/revisions\/1373"}],"wp:attachment":[{"href":"https:\/\/www.hhtec.eu\/hammer\/wp-json\/wp\/v2\/media?parent=717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}