photodisintegration

photodisintegration
/foh'toh di sin'ti gray"sheuhn/, n. Physics.
the disintegration of a nucleus, induced by its absorption of a photon.
[1930-35; PHOTO- + DISINTEGRATION]

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also called  Phototransmutation,  

      in physics, nuclear reaction in which the absorption of high-energy electromagnetic radiation (a gamma-ray photon) causes the absorbing nucleus to change to another species by ejecting a subatomic particle, such as a proton, neutron, or alpha particle. For example, magnesium-25, upon absorbing a photon of sufficient energy, emits a proton and becomes sodium-24. Photodisintegration differs from the nuclear reaction photofission, in which a nucleus, upon absorbing a photon, splits into two fragments of nearly equal mass.

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Universalium. 2010.

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  • Photodisintegration — Фоторасщепление; фотораспад …   Краткий толковый словарь по полиграфии

  • photodisintegration — pho·to·disintegration …   English syllables

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