alpha (particle )rays

альфа-лучи

Англо-русский словарь технических терминов. 2005.

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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 — 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 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 radiation — alfa spinduliuotė statusas T sritis fizika atitikmenys: angl. alpha radiation; alpha rays; alpha particle radiation vok. Alphastrahlen, m; Alpha Strahlung, f; Alphastrahlung, f rus. альфа излучение, n; альфа лучи, m pranc. radiation alpha, f;… …   Fizikos terminų žodynas

  • Particle radiation — is the radiation of energy by means of fast moving subatomic particles. Particle radiation is referred to as a particle beam if the particles are all moving in the same direction, similar to a light beam.Due to the wave particle duality, all… …   Wikipedia

  • particle accelerator — accelerator (def. 7). [1945 50] * * * Device that accelerates a beam of fast moving, electrically charged atoms (ions) or subatomic particles. Accelerators are used to study the structure of atomic nuclei (see atom) and the nature of subatomic… …   Universalium

  • Alpha decay — 2 less. For example:(The second form is preferred because the first form appears electrically unbalanced. Fundamentally, the recoiling nucleus is very quickly stripped of two electrons to neutralize the ionized helium cation.)An alpha particle is …   Wikipedia

  • Particle, alpha — 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 rays — alfa spinduliuotė statusas T sritis fizika atitikmenys: angl. alpha radiation; alpha rays; alpha particle radiation vok. Alphastrahlen, m; Alpha Strahlung, f; Alphastrahlung, f rus. альфа излучение, n; альфа лучи, m pranc. radiation alpha, f;… …   Fizikos terminų žodynas

  • Alpha-Strahlung — alfa spinduliuotė statusas T sritis fizika atitikmenys: angl. alpha radiation; alpha rays; alpha particle radiation vok. Alphastrahlen, m; Alpha Strahlung, f; Alphastrahlung, f rus. альфа излучение, n; альфа лучи, m pranc. radiation alpha, f;… …   Fizikos terminų žodynas

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