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1 длина замедления нейтронов
Oilfield: slow-down distance of neutronsУниверсальный русско-английский словарь > длина замедления нейтронов
См. также в других словарях:
slow — adj., adv., & v. adj. 1 a taking a relatively long time to do a thing or cover a distance (also foll. by of: slow of speech). b not quick; acting or moving or done without speed. 2 gradual; obtained over a length of time (slow growth). 3 not… … Useful english dictionary
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radiation measurement — ▪ technology Introduction technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta, and gamma rays or neutrons, for the purpose of measurement. The term ionizing radiation refers to those… … Universalium
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nuclear fission — fission (def. 2). [1885 90] * * * Division of a heavy atomic nucleus into two fragments of roughly equal mass, accompanied by the release of a large amount of energy, the binding energy of the subatomic particles. The energy released in the… … Universalium
radioactivity — /ray dee oh ak tiv i tee/, n. Physics, Chem. the phenomenon, exhibited by and being a property of certain elements, of spontaneously emitting radiation resulting from changes in the nuclei of atoms of the element. Also called activity. [1895… … Universalium
rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 … Universalium
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