For that reason, the ITER initiative is focused on the D-T
reaction. Although resources of deuterium on Earth are almost limitless (as a heavy water impurity), there is no
tritium available because the half-life of this radioactive
hydrogen isotope is only about 10 years. Therefore, a scheme
has been devised to generate tritium on-site from lithium containing
compounds , taking advantage of the
neutron flux released as a by-product of reaction