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Descriptor English: Neutrons
Descriptor Spanish: Neutrones
Descriptor neutrones
Scope note: Partículas elementales, eléctricamente neutras, existentes en todos los núcleos atómicos excepto en el hidrógeno ligero. Su masa es igual a la de los protones y electrones combinados y, cuando se aíslan del núcleo, son inestables, emitiendo radiación beta. Según el nivel de energía con el que los neutrones son expulsados del núcleo durante su desintegración, los neutrones pueden clasificarse como lentos, térmicos, epitérmicos y rápidos.
Descriptor Portuguese: Nêutrons
Descriptor French: Neutrons
Entry term(s): Neutron
Tree number(s): G01.249.660.250
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D009502
Scope note: 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.
Annotation: elementary particles; IM; FAST NEUTRONS is available
Allowable Qualifiers: AE adverse effects
CL classification
HI history
TU therapeutic use
DeCS ID: 9690
Unique ID: D009502
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: 2016/05/31
Neutrons - Preferred
Concept UI M0014781
Scope note 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.
Preferred term Neutrons
Entry term(s) Neutron



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