Cross section measurements for the ( 3He, p) nuclear reaction on B and N between 2 and 4 MeV

Abstract

Cross section measurements have been made for several proton groups from the ( 3He,p) nuclear reaction on boron and nitrogen. Incident energies between 2 and 4 MeV and angles of 90° and 135° were used. A 1.5 mm thick surface barrier detector, covered to stop elastically scattered 3He ions, was used to detect the high energy protons from these reactions. The proton energy was as high as 20 MeV in the case of a boron target. We propose the use of these reactions for quantitative elemental areal density determination in thin film analyses.