- alpha-particle nucleus
- альфа-частичное ядро
gas nucleus — газовое ядро
light nucleus — лёгкое ядро
odd nucleus — нечетное ядро
urban nucleus — ядро города
fusion nucleus — ядро зиготы
English-Russian big polytechnic dictionary. 2014.
alpha-particle nucleus
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Alpha particle — Alpha particles (named after and denoted by the first letter in the Greek alphabet, α) consist of two protons and two neutrons bound together into a particle identical to a helium nucleus; hence, it can be written as He2+ or 42He2+. They are a… … Wikipedia
alpha particle — (Physics & Chem.) a particle emitted at high velocity from certain radioactive substances. It is identical to the helium nucleus, consisting of two protons and two neutrons. Rays of such particles are called {alpha rays}. [Webster 1913 Suppl.… … The Collaborative International Dictionary of English
alpha particle — n. a positively charged particle given off by certain radioactive substances: it consists of two protons and two neutrons (a helium nucleus), and is converted into an atom of helium by the acquisition of two electrons … English World dictionary
alpha particle — (also alpha ray) ► NOUN Physics ▪ a helium nucleus, especially as emitted by some radioactive substances … English terms dictionary
Alpha particle X-ray spectrometer — APXS is also an abbreviation for APache eXtenSion tool, an extension for Apache web servers. [ Mars Pathfinder Sojourner rover] An Alpha Particle X Ray Spectrometer (APXS) (or Alpha Proton X Ray Spectrometer for the Pathfinder mission) is a… … Wikipedia
Alpha particle — A tiny mass of material composed of two protons and two neutrons. Alpha particles do not travel very far from their radioactive source. They cannot pass through a piece of paper, clothes or even the layer of dead cells which normally protects the … Medical dictionary
alpha particle — noun a positively charged particle that is the nucleus of the helium atom; emitted from natural or radioactive isotopes • Hypernyms: ↑particle, ↑subatomic particle * * * ˈalpha particle [alpha particle] noun ( … Useful english dictionary
alpha-particle model of nucleus — alfa dalelių branduolio modelis statusas T sritis fizika atitikmenys: angl. alpha particle model of nucleus; alpha particle nuclear model vok. Alpha Teilchen Kernmodell, n; Alpha Teilchenmodell des Atomkerns, n rus. альфа частичная модель ядра,… … Fizikos terminų žodynas
alpha-particle nuclear model — alfa dalelių branduolio modelis statusas T sritis fizika atitikmenys: angl. alpha particle model of nucleus; alpha particle nuclear model vok. Alpha Teilchen Kernmodell, n; Alpha Teilchenmodell des Atomkerns, n rus. альфа частичная модель ядра,… … Fizikos terminų žodynas
Alpha-particle spectroscopy — One method for testing for (and measuring) many alpha emitters is to use alpha particle spectroscopy. For methods for gamma rays and beta particles, please see gamma spectroscopy and liquid scintillation counting respectively. Experimental… … Wikipedia
alpha particle — UK / US noun [countable] Word forms alpha particle : singular alpha particle plural alpha particles physics the nucleus of a helium atom that is produced by some radioactive substances … English dictionary
