Decay heat plays an important role in fusion plant safety. To validate the codes, data and calculation procedures used in decay heat prediction, an international benchmark exercise was launched. The calculated results have been compared with experimental ones, obtained from a series of experiments performed using the Fusion Neutronics Source (FNS) at the Japan Atomic Energy Research Institute (JAERI), Tokai, Japan. This paper presents the decay heat results for two of the most relevant fusion-related materials, the AISI 316 steel and the copper samples, obtained using the ENEA activation code ANITA-4/F and discuss their comparison with the experimental ones.