Neutron Methods for On-Line Analysis

CIM Bulletin, 1973

H. P. DIBBS, Research Scientist, Department of the Environment, Ottawa, and J. L. DAL TON, Chemist, Spectroscopy Group, Department of Energy, Mines and Resources, Mines Branch, Ottawa

An account is given of investigations into the application of two neutron methods to the on-line analysis of slurries. One deals with the application of the neutron moisture gauge principle to the determination of t he water content of iron oxide slurries, and the other with the application of gamma radiation from thermal-neutron-capture to the determination of the composition of aqueous slurries of iron oxide, copper oxide, zinc oxide and sulphur. Linear relationships were found between the composition of the slurry and the neutron count-rate in the first study, and between the slurry composition and the prompt-gamma-ray count-rate in the second study. A mathematical relationship has also been developed which relates changes in the prompt-gamma-ray counts from hydrogen to changes in slurry composition.
Keywords: analysis, Analysis of Neutron Thermalization Data, gamma radiation, neutron source, Slurry Density for Iron Oxide, Sulphur Slurry, Density, energy, Iron, Oxide, Slurry, Water