Absolute measurements of the activity of beta emitters.
1950
J L PUTMAN
UI
MeSH Term
Description
Entries
D011851
Radioactivity
The spontaneous transformation of a nuclide into one or more different nuclides, accompanied by either the emission of particles from the nucleus, nuclear capture or ejection of orbital electrons, or fission. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)