Photoproton Production of ^99mTc and Its Theranostic Counterpart ¹⁰¹Tc via (γ,p) Reaction on Ruthenium

A production route for ^99mTc and ¹⁰¹Tc using the (γ,p) reaction was considered. For an electron beam with energy of 40 MeV and power of 10 kW, distributions of produced ^99mTc and ¹⁰¹Tc were obtained. For the optimized target (0.5 g) configurations, values of ^99mTc specific activities of 9.53 GBq/g (0.26 Ci/g) for a one-stage setup and of 1.77 GBq/g (0.049 Ci/g) for a two-stage setup were obtained. For ¹⁰¹Tc, the corresponding values were 6.51 GBq/g (0.18 Ci/g) and 1.24 GBq/g (0.033 Ci/g).