Measurement of capture cross sections of (sup 238)U on the filtered keV-neutron beams

摘要

Capture cross sections for the (sup 238)U(n,(gamma)) reaction were measured related to that of the (sup 197)Au(n,(gamma)) reaction on the filtered keV-neutron beams at the Dalat reactor using the activation method. Radioactivities of samples after irradiation were measured with HPGe detectors (50 mm(sup 2) sensitive area, FWHM = 150 eV for (sup 55)Fe and 70 cc volume, FWHM = 2.5 keV at 1332 keV (gamma)-transition of (sup 60)Co). The data obtained by the authors were compared with the evaluations in ENDF/B-VI and JEF-2 and also with the results from recent experimental works. (author). 12 refs, 1 fig., 4 tabs. (Atomindex citation 28:024248)