A SIMPLE GAMMA-RAY INSENSITIVE FAST-NEUTRON COUNTER

Abstract
A gamma-ray insensitive fast-neutron counter is described which consists of a number of thin rectangular sheets of lucite coated with zinc sulphide and sandwiched together to form a rectangular block which is mounted on a photo-multiplier. Pulse height spectra and absolute efficiency curves are presented for neutrons from 300 kev to 15 Mev.

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