Measurement and simulation of the cross sections for the production of [sup.148]Gd in thin [sup.nat]W and [sup.181]Ta targets irradiated with 0.4- to 2.6-GeV protons

The cross sections for the production of [sup.148]Gd in [sup.nat]W and [sup.181]Ta targets irradiated by 0.4-, 0.6-, 0.8-, 1.2-, 1.6-, and 2.6-GeV protons at the ITEP accelerator complex have been measured by direct a spectrometry without chemical separation. The experimental data have been compared with the data obtained at other laboratories and with the theoretical simulations of the yields on the basis of the BERTINI, ISABEL, CEM03.02, INCL4.2, INCL4.5, CASCADE07, and PHITS codes.