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Descriptor English: Alpha Particles
Descriptor Spanish: Partículas alfa
Descriptor partículas alfa
Entry term(s) rayos alfa
Scope note: Partículas cargadas positivamente, constituidas por dos protones y dos NEUTRONES, es decir, equivalente a núcleos de HELIO, que son emitidas durante la desintegración de ISÓTOPOS pesados. Los rayos alfa tienen un enorme poder ionizante pero débil penetrabilidad.
Descriptor Portuguese: Partículas alfa
Descriptor French: Particules alpha
Entry term(s): Alpha Particle
Alpha Radiation
Alpha Ray
Alpha Rays
Particle, Alpha
Particles, Alpha
Radiation, Alpha
Ray, Alpha
Rays, Alpha
Tree number(s): G01.750.750.055
RDF Unique Identifier: https://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.
Allowable Qualifiers: AE adverse effects
CL classification
HI history
TU therapeutic use
Public MeSH Note: 66
History Note: 66
DeCS ID: 522
Unique ID: D000512
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1966/01/01
Date of Entry: 1999/01/01
Revision Date: 2011/06/24
Alpha Particles - Preferred
Concept UI M0000774
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.
Preferred term Alpha Particles
Entry term(s) Alpha Particle
Particle, Alpha
Particles, Alpha
Alpha Rays - Related but not broader or narrower
Concept UI M0000775
Scope note A beam of ALPHA PARTICLES.
Preferred term Alpha Rays
Entry term(s) Alpha Radiation
Alpha Ray
Radiation, Alpha
Ray, Alpha
Rays, Alpha



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