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The main aspects of radioactivity (activation) induced by the interaction of D-T neutrons of fusion and the materials which make up the reactor are described. The high energy level of these neutrons causes a number of reactions which produce a much higher number of particles (such as helium nuclei or protons) than in fission activation, which is mainly produced by capture reactions. Activation is the main constituent of radioactivity in fusion and can be controlled to a certain extent by choosing the right materials, unlike radioactivity from fission which is unavoidable. The main quantitative and qualitative data relating to fusion activation are provided and a description is given of the principal ways in which it can be controlled in the short term (operation, maintenance, accident conditions) and in the long term (waste management).

Additional information

Authors: ROCCO P, JRC Ispra (IT)
Bibliographic Reference: Paper presented: Giornate di Studio Fusione e Radioprotezione, Como (IT), September 6, 1994
Availability: Available from (1) as Paper IT 38563 ORA
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