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beta decay |
Also found in: Encyclopedia, Wikipedia, Hutchinson | 0.07 sec. |
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decay /de·cay/ (de-ka´) 1. the decomposition of dead matter. 2. the process of decline, as in aging. beta decay disintegration of the nucleus of an unstable radionuclide in which the mass number is unchanged, but atomic number is changed by 1, as a result of emission of a negatively or positively charged (beta) particle. tooth decay dental caries. beta decay, a type of radioactivity that results in the emission of beta particles, either electrons or positrons. See also beta particle. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Ito, California Institute of Technology 9:30-9:45 Project of neutron beta-decay A-asymmetry measurement with accuracy on the level [10. However, this tail end of the tritium beta-decay spectrum has a puzzling feature. Koonin of the California Institute of Technology in Pasadena has now shown that electrons surrounding an atomic nucleus have a discernible but hitherto overlooked effect on a given radioactive isotope's beta-decay spectrum. |
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