  Cadmium has been used historically as an important component of integral
experiments because of its high thermal neutron absorption cross section.
Correct interpretation of such experiments depends on accurate differential
neutron cross section measurements. The 60 MeV electron accelerator at the
Gaerttner LINAC Center was used to generate neutrons for neutron capture and
total cross section measurements of natural Cd. Measurements were performed in
the thermal and epithermal resonance range with sample thicknesses ranging from
1 x 10-4 to 4 x 10-2 atoms per barn. A full resonance region analysis was
performed in order to determine the thermal cross sections and resonance
integrals of the cadmium isotopes. The Bayesian R-Matrix code SAMMY 8.0 was
used to shape fit the data and extract the resonance parameters. Resonance
parameter and cross section uncertainties were determined from their primary
components: transmission background, capture normalization, experimental
resolution function, burst width, sample thickness, and counting statistics.
The experiments were analyzed for consistency within the measured capture and
transmission using multiple sample thicknesses. Results are compared to
previously published measurements and evaluated nuclear libraries. No major
changes to the thermal cross section or the first resonance in Cd113 were
identified from the consensus achieved from measurements and evaluations over
the past decade.
