Neutron Resonance Parameters ofAg109

The transmission of a thick sample of 99.2% ${\mathrm{Ag}}^{109}$ has been measured for incident neutron energies from 20 keV to 30 eV. The total cross section from 320 to 30 eV has been fitted in detail with the Breit-Wigner single-level parameters for 15 resonances in this energy region. An acceptable fit was obtained for a common radiation width of 120±10 meV and a radius parameter $R^{\prime }$ of (0.63±0.01)×${10}^{-12\mathrm{}}$ cm. From the average cross section in the keV region a neutron strength function of (0.54±0.10)×${10}^{-4\mathrm{}}$ was obtained.