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Neutron radiative capture in Na, Al, Fe, and Ni has been measured from 100 eV to 200 keV with a 1.25-m-diam liquid scintillator detector at the Rensselaer LINAC Laboratory. Radiation widths were determined for those resonances whose neutron widths are well known, while the resonance capture areas (-wave neutrons, and from these data />-wave strength functions of (O.lOrLO.04) XlCr~4 and (0.04±0.03) X 10~4 were determined, respectively, for 58 Fe and 58 Ni. These strength functions are probably just upper limits to the true ^-wave strength functions and are an order of magnitude smaller than optical-model predictions.* Taken in part from the thesis submitted to Rensselaer Polytechnic Institute by R. W. Hockenbury in August, 1967, in partial fulfillment of the requirements for the Ph.D. degree.

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