Excitations functions for the formation of ' I from ' I have been determined with 60 -350 MeV w and m . The contributions of both direct nucleon knockout and pion inelastic scattering followed by neutron evaporation are visible in the excitation functions. The results are compared with a cascade-evaporation calculation, the Sternheim-Silbar nucleon charge exchange models, and the semiclassical model of Ohkubo and Porile. NUCLEAR REACTIONS ' I(m. -+,mÃ)' I, excitation functions (activation), T =6O -350 MeV. KI targets. Comparison with various models.