Determination of the intensity of short-duration pulses of fast neutrons

Abstract

A method for determining the yield of a pulse of neutrons has been developed. It consists of recording the γ-rays emitted when the neutrons are slowed down and captured in paraffin wax. A sensitivity of 0·1 neutrons/cm² has been achieved. Measurements are unaffected by the electrical interference and γ-rays accompanying the production of the neutrons.