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caesium [ˊsi:zɪəm] nхим. це́зий -
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цезий
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
caesium
A soft silvery-white and highly reactive metal belonging to the alkali group of metals. It is a radiation hazard, because it can occur in two radioactive forms. Caesium-134 is produced in nuclear reactors, not directly by fission, but by the reaction. It emits beta- and gamma-radiation and has a half-life of 2.06 years. Caesium-137 is a fission product of uranium and occurs in the fallout from nuclear weapons. It emits beta- and gamma-rays and has a half-life of 30 years. Caesium-137 was the principal product released into the atmosphere, and hence the food chain, from atmospheric testing of nuclear weapons and from the Windscale fire and Chernobyl nuclear accidents. After the Chernobyl accident, which spread a radiation cloud across Europe, the European Commission proposed new and more restrictive limits on levels of caesium in food and drinking water. (Source: WRIGHT)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Англо-русский словарь нормативно-технической терминологии > caesium
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cae·sium[ˈsi:ziəm]* * *(US) ['siːzɪəm]nCäsium nt, Zäsium nt* * ** * *n.Caesium n.Zäsium n. -
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n. caesium (scheikundig element)1 cesium -
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[ˈsi:zjəm]caesium хим. цезий cesium: cesium =caesium -
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chemistry• caesiumchemistry• cesium -
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s.cesio, caesium.
См. также в других словарях:
caesium — Symbol: Cs Atomic number: 55 Atomic weight: 132.90545 Soft silvery white metallic element belonging to group 1 of the periodic table. One of the three metals which are liquid at room temperature. Cs 133 is the natural, and only stable, isotope.… … Elements of periodic system
Caesium — caesium, Caesium C[ae] si*um, n. [NL., from L. caesius bluish gray.] (Chem.) A rare alkaline metal found in mineral water; so called from the two characteristic blue lines in its spectrum. It was the first element discovered by spectrum analysis … The Collaborative International Dictionary of English
caesium — caesium, Caesium C[ae] si*um, n. [NL., from L. caesius bluish gray.] (Chem.) A rare alkaline metal found in mineral water; so called from the two characteristic blue lines in its spectrum. It was the first element discovered by spectrum analysis … The Collaborative International Dictionary of English
caesium — Véase cesio. Diccionario Mosby Medicina, Enfermería y Ciencias de la Salud, Ediciones Hancourt, S.A. 1999 … Diccionario médico
caesium — chiefly Brit var of CESIUM … Medical dictionary
Caesium — vgl. Cäsium … Das Wörterbuch medizinischer Fachausdrücke
caesium — see CESIUM (Cf. cesium) … Etymology dictionary
caesium — [sē′zē əm] n. CESIUM … English World dictionary
Caesium — xenon ← caesium → barium Rb ↑ Cs ↓ Fr … Wikipedia
Caesium — Eigenschaften … Deutsch Wikipedia
caesium — /ˈsiziəm/ (say seezeeuhm) noun a rare, extremely active, soft, monovalent metallic element showing blue lines in the spectrum, used in photoelectric cells. The radioactive isotope, caesium 137, is obtained from nuclear reactors and is used in… …