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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): Rayonnement alpha
Rayons 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 effets indésirables
CL classification
HI histoire
TU usage thérapeutique
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
Particules alpha - Preferred
Concept UI M0000774
Preferred term Particules alpha
Rayons alpha - Related but not broader or narrower
Concept UI M0000775
Preferred term Rayons alpha
Entry term(s) Rayonnement alpha



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