- radioactive thorium
- <nucl> ■ radioaktives Thorium n ; Radiothorium n
English-german technical dictionary. 2013.
English-german technical dictionary. 2013.
Thorium — (pronEng|ˈθɔːriəm) is a chemical element with the symbol Th and atomic number 90. As a naturally occurring, slightly radioactive metal, it has been considered as an alternative nuclear fuel to uranium.CharacteristicsWhen pure, thorium is a… … Wikipedia
Thorium — Actinium ← Thorium → Protactinium Ce … Wikipédia en Français
Thorium dioxide — IUPAC name Thorium dioxide Thorium(IV) oxide … Wikipedia
Thorium 233 — Thorium Thorium Actinium … Wikipédia en Français
THORIUM — En 1828, Jöns Jacob Berzelius découvrit un nouveau métal qu’il baptisa thorium en l’honneur de Thor, dieu de la mythologie scandinave. Bien qu’il soit relativement rare, cet élément a été utilisé depuis longtemps dans l’industrie, principalement… … Encyclopédie Universelle
thorium — Symbol: Th Atomic number: 90 Atomic weight: 232.038 Grey radioactive metallic element. Belongs to actinoids. Found in monazite sand in Brazil, India and the US. Thorium 232 has a half life of 1.39x10^10 years. Can be used as a nuclear fuel for… … Elements of periodic system
Thorium-229 — is a radioactive isotope of Thorium that decays by alpha emission with a half life of 7340 years.229Th is produced by the decay of uranium 233, and its principal use is for the production of the medical isotopes actinium 225 and bismuth 213. [… … Wikipedia
thorium — [thôr′ē əm] n. [ModL: so named (1829) by BERZELIUS Baron Jöns Jakob, its discoverer < ON Thorr (see THOR) + IUM] a rare, grayish, radioactive, metallic chemical element, one of the actinides, found in monazite and thorite: it is used in… … English World dictionary
radioactive — [rā΄dē ō ak′tiv] adj. [ RADIO + ACTIVE] giving off, or capable of giving off, radiant energy in the form of particles or rays, as alpha, beta, and gamma rays, by the spontaneous disintegration of atomic nuclei: said of certain elements, as… … English World dictionary
Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… … Wikipedia
Thorium fuel cycle — The thorium fuel cycle is a nuclear fuel cycle that uses thorium 232 as fertile material and uranium 233 as fissile fuel. A major advantage of the thorium fuel cycle is that production of plutonium and other long lived actinides as radioactive… … Wikipedia