Recent capture cross section data from ORELA above 2. 6 keV

Neutron capture by natural rhodium (/sup 103/Rh) and enriched stable isotopes of ruthenium (100 to 104) and palladium (104 to 110) were measured at the Oak Ridge Electron Linear Accelerator pulsed neutron facility. Average pure isotope cross sections from three to several hundred keV were derived. The neutron flux shape was determined relative to ENDF/B V standard /sup 6/Li(n,..cap alpha..) and /sup 235/U(n,f) cross sections below and above 70 keV respectively. Strength functions were adjusted to fit the data by least squares. The /sup 101/Ru fission product would appear to cause less poisoning than /sup 105/Pd or /sup 103/Rh in plutonium fueled fast reactors.