“…Meanwhile, other Tb radionuclides, such as 149 Tb, 152 Tb, and 155 Tb, are mostly produced by spallation reactions on natural tantalum targets through the reaction nat Ta(p,x) 149,152,155 Tb. This production route has several limitations: on one hand, there are few high-energy accelerator facilities; on the other hand, this route needs an expensive online mass separation procedure to isolate the desired radionuclide with, today, a low efficiency (Duchemin et al, 2020). Heavy-ion-induced reactions have also been considered to produce 149 Tb and 152 Tb (Lahiri et al, 1999;Nayak et al, 1999;Allen et al, 2001;Maiti, 2011).…”