SYSTEMA TIC MEASUREMENTS OF keV-NEUTRON CAPTURE CROSS SECTIONS AND CAPTURE GAMMA-RAY SPECTRA OF Pd ISOTOPES

The capture cross sections and capture γ-ray spectra of 104,105Pd were measured in the neutron energy region of 15–100 keV as a part of systematic series of measurements. A neutron time-of-flight method was adopted, using a ns pulsed neutron source via the 7Li(p,n)7Be reaction. The capture γ-rays from the samples were measured with an antiCompton NaI(Tl) spectrometer. The capture yields were obtained by applying a pulseheight weighting technique to the net capture γ-ray pulse-height spectra. The capture cross sections of 104,105Pd were derived with errors less than 5%, using the standard capture cross sections of 197Au. The capture γ-ray spectra of 104,105Pd were also derived by unfolding the respective observed capture γ-ray pulse-height spectra.