Production of a monochromatic, low energy positron beam using the 11B(p,n)11C reaction

Abstract

A new technique has been developed to produce an intense positron source by making use of the 11B(p,n)11C reaction. Positrons with well-defined low energies have been observed emerging from the irradiated boron target itself without any additional moderating materials. A description of the apparatus used to produce the 11C and to detect the low energy positrons is given.