4. Radioactive decay data, fission yields and dosimetry data

4.1 Radioactive decay data and fission yields

Radioactivity is induced by a variety of physical phenomena:

• neutron-induced fission and spontaneous fission ;

• neutron activation;

• photonuclear reactions: (γ, n), (γ, f), etc. ;

• nuclear reactions induced by charged particles (α, p, d...).

They are responsible for the formation of radioactive nuclei classified in the following categories:

• fission products ;

• actinides or heavy nuclei ;

• activation products ;

• spallation...