In order to estimate the lifetime of quadrupole magnets in the High-Luminosity (HL) LHC accelerator during operation up to 3000 fb-1, a precise knowledge of the potential damage on the superconductors caused by the simultaneous action of several high energy irradiation sources is needed. After introducing a W shield, the radiation load by multiple energy sources on the innermost windings of the HL-LHC quadrupoles has been calculated and a total displacement per atom value dpa of 1.8 x 10-4 has been found [1]. In order to predict the irradiation effects the same Ta and Ti added multifilamentary Nb3Sn wires were irradiated with high energy protons (65 MeV and 24 GeV, up to 1.4 x 1021 p/m2) and neutrons (1 MeV, up to 1.8 x 1022 n/m2).
