Feasibility study for on-line analysis of bauxite using a PGNAA system

An industrial prompt-gamma neutron activation analysis(PGNAA) system,designed for the real-time elemental analysis of bulk materiel on a conveyor belt,has been studied to examine the feasibility of using such a system for bauxite composition analysis.Experiments were conducted to measure Ca Si Fe Al in two simple,one simple is comprised of pure oxide,and the other simple is comprised of bauxite and pure oxide.The static accuracy are ±0.23%(CaO),±0.18%(SiO₂),±0.35%(Al₂O₃),±0.14%(Fe₂O₃),±0.08%(TiO₂).The instrument can meet the requirements of automatic mixing system of row material and quality controlling after entering factory.