Status and problems of application of PGNAA technology

Situation and problems of PGNAA technology in domestic coal industry application. This paper is a issue aiming at the prompt gamma neutron activation analysis technology (hereinafter referred to PGNAA technology) in the following aspects: the applied status of the coal industry and the potential application in China; the realistic situation of the technique in China; and the gap of similar products between domestic and overseas. Meanwhile it focus on the characteristics of PGNAA technology for the industrial applications, discussing the key of the technical bottleneck, handling of the complex energy spectrum and the spectrum-stabilizing technique, of the on-line measurement of quality and elements with the technology of PGNAA. (authors)