AbstractA redetermination of the agefor neutrons of indium-resonance energy (1.46 ev) from a point U235fission source is reported. Foils were irradiated in a geometrically simple arrangement in the Penn State Reactor pool, and counted in a standard manner. The value obtained,τ= 27.3±0.9 cm2, is in better agreement with current theory than those from previous measurements. The spatial distribution found here differs most markedly from those observed in previous experiments by having a larger slope in the region within a few centimeters of the source.