| 释义 |
beta ray
beta rayn.1. A rapidly moving beta particle.2. A narrow beam of such particles.beta ray n (General Physics) a stream of beta particles be′ta ray`
n. a stream of beta particles. [1900–05] beta ray A stream of beta particles.Thesaurus| Noun | 1. |  beta ray - radiation of beta particles during radioactive decaybeta radiation, electron radiationionizing radiation - high-energy radiation capable of producing ionization in substances through which it passescorpuscular radiation, particulate radiation - a stream of atomic or subatomic particles that may be charged positively (e.g. alpha particles) or negatively (e.g. beta particles) or not at all (e.g. neutrons) |
Translationsbeta ray
beta ray[′bād·ə ‚rā] (nuclear physics) A stream of beta particles. beta ray
be·ta par·ti·clean electron, either positively (positron, β+) or negatively (negatron, β-) charged, emitted during beta decay of a radionuclide.
See also: cathode rays. Synonym(s): beta raybeta particle An ionising electron or positron which is emitted from decaying radioactive nuclei during beta decay or beta emission. Beta particles are equal in mass and charge to electrons.β Abbreviation for beta.
be·ta (β) (bā'tă) 1. Second letter of the Greek alphabet. 2. chemistry Denotes the second in a series, the second carbon from a functional (e.g., carboxylic) group, or the direction of a chemical bond toward the viewer. For terms with the prefix β, see the specific term. beta rayA ray composed of negatively charged electrons expelled from atoms of disintegrating radioactive elements. Synonym: beta particleSee also: rayFinancialSeeBetabeta ray
Related to beta ray: alpha raySynonyms for beta raynoun radiation of beta particles during radioactive decaySynonyms- beta radiation
- electron radiation
Related Words- ionizing radiation
- corpuscular radiation
- particulate radiation
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