MeSH Browser

MeSH Heading: Alpha Particles
Tree Number(s): G01.750.750.055
Unique ID: D000512
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D000512
Scope Note: Positively charged particles composed of two protons and two NEUTRONS, i.e. equivalent to HELIUM nuclei, which are emitted during disintegration of heavy ISOTOPES. Alpha rays have very strong ionizing power, but weak penetrability.
Entry Term(s): Alpha Radiation; Alpha Rays; Radiation, Alpha
Public MeSH Note: 66
History Note: 66
Date Established: 1966/01/01
Date of Entry: 1999/01/01
Revision Date: 2011/06/24

Allowable Qualifiers: adverse effects (AE)

classification (CL)

history (HI)

therapeutic use (TU)

Alpha Particles MeSH Descriptor Data 2025