Phenomena and Processes

Neutrons

Electrically neutral elementary particles found in all atomic nuclei except light hydrogen; the mass is equal to that of the proton and electron combined and they are unstable when isolated from the nucleus, undergoing beta decay. Slow, thermal, epithermal, and fast neutrons refer to the energy levels with which the neutrons are ejected from heavier nuclei during their decay.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Electrically neutral elementary particles found in all atomic nuclei except light hydrogen; the mass is equal to that of the proton and electron combined and they are unstable when isolated from the nucleus, undergoing beta decay. Slow, thermal, epithermal, and fast neutrons refer to the energy levels with which the neutrons are ejected from heavier nuclei during their decay.

MeSH Record

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MeSH Record

Synonyms

1 entry terms
  • Neutron

MeSH Record

Aspects Covered

4 allowable subheadings

Indexed with the subheadings adverse effects, classification, history, therapeutic use.

MeSH Record

Indexing Annotation

elementary particles; IM; FAST NEUTRONS is available

MeSH Hierarchy

Tree Number

  1. G01w.249w.660w.250w

AMA Style

References

  1. National Library of Medicine. Neutrons. Medical Subject Headings (MeSH). 2026. Unique ID D009502. http://id.nlm.nih.gov/mesh/2026/D009502
  2. Neutrons. In: Wikipedia. https://en.wikipedia.org/wiki/Neutron
  3. Neutrons. In: Wikidata. https://www.wikidata.org/wiki/Q2348