Abstract

Isomeric cross-section ratios have been measured for the reactions¹⁰⁷Ag(α,2n)^109g,mIn and¹⁰⁹Ag(α, 2n)^111g,mIn for energies of theα-particles between 19 and 40 MeV. The experimental isomeric cross-section ratios are compared with statistical-model calculations. The program ofHafner et al. was extended by including the competition of the (α,n)- and (α, 3n)-reactions and of charged particle emission. Agreement between experiment and theory could be achieved.