3. γ-photon activation analysis
3.1 Nuclear reactions involved, sources of γ-photons
γ-photons can be used in analysis through two distinct nuclear interactions: photoexcitation and nuclear reaction.
Nuclear photoexcitation leads to a nucleus identical to the initial nucleus but in an excited state; it returns to the normal state by emitting one or more γ photons.
After excitation with relatively low-energy γ photons (a few MeV), this process can be used to assay elements with atomic numbers above 30 (Table 8 ). In practice, the sensitivity of these assays is in the tens of µg to mg...
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γ-photon activation analysis
Charged particle activation analysis
Bibliography
References
Manufacturers and suppliers
(non-exhaustive list)
Neutron generators
EADS SODERN http://www.sodern.fr
Measuring equipment (sensors and electronics)
Canberra Eurisys http://www.canberraeurisys.com
SEPH...
Organization
Commission interministérielle des radioéléments artificiels (CIREA)
Laboratoires
(non-exhaustive list)
Reactor neutron activation
Laboratoire Pierre-Süe (CEA-CNRS, Saclay) http://www-drecam.cea.fr/lps
Activation with charged particles
Centre d'études et de recherches par irradiation (CERI, CNRS, Orléans)
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