MeSH Browser

MeSH Heading: Radioactivity
Tree Number(s): G01.828
Unique ID: D011851
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D011851
Annotation: IM general only for principle of emission of radiations; NIM as coordinate for degree of radioactivity of specific radioelements or radioisotopes (IM); do not use as routine coordinate for amount of radiation or degree of radioactivity of radioisotope tracers; entry term NUCLEAR DECAY: coordinate NIM with specific radioactive substance (IM) & do not add RADIOMETRY
Scope Note: 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)
Entry Term(s): Nuclear Decay; Radioactive Disintegration
Date Established: 1966/01/01
Date of Entry: 1999/01/01
Revision Date: 2016/06/17

Radioactivity MeSH Descriptor Data 2025