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Concept information

study material > chemical object > isotope > radioisotope > cosmogenic radionuclide

Terme préférentiel

cosmogenic radionuclide  

Définition

  • Cosmogenic radionuclides are radionuclides generated by the nuclear reactions during the interaction between high-energy cosmic rays and stable nuclei from the atmosphere. One of the well-known cosmogenic radionuclides is carbon-14, which is generated by the reaction 14N(n,p)14C. The other isotopes generated are as follows: 3H, 7Be, 22Na. Most of cosmogenic radionuclides are products of (n,p), (p,n) and especially spallation reactions. These nuclear reactions are very fast and occur in a time comparable to the time of transit of an incident particle across the nucleus (~10-22 s). The very short interaction time allows for an interaction of a single nucleon only (in extreme cases). These reactions are known as direct nuclear reactions. (Adapted from: https://www.radiation-dosimetry.org/what-is-cosmogenic-radionuclide-definition/)

Concept générique

Synonyme(s)

  • cosmogenic isotope
  • cosmogenic radio-isotope
  • cosmogenic radioisotope
  • cosmogenic radio-nuclide

Traductions

  • radionucléide cosmogénique

    français

  • isotope cosmogénique
  • nucléide radioactif cosmogénique
  • radio-isotope cosmogénique
  • radio-nucléide cosmogénique
  • radioisotope cosmogénique

URI

http://data.loterre.fr/ark:/67375/QX8-PM2N1LSL-S

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