Peak position similarity energy spectrum searching method for neutron activation element analysis

Abstract

The invention discloses a peak position similarity energy spectrum searching method for neutron activation element analysis. According to the peak position similarity energy spectrum searching method, files in a spectral form knowledge base are numbered, and index files are established according to peak position information, wherein each index file is a binary number with the number of digits equal to the number of spectral forms; according to the peak position information of an actually measured spectral form, corresponding Boolean operation is conducted on the index files, and a spectral form meeting a searching requirement is obtained from the spectral form knowledge base. By the adoption of the peak position similarity energy spectrum searching method, the spectral form with the peak position similar to that of the actually measured spectral form can be rapidly and accurately found from the spectral form knowledge base, and especially when the number of the spectral form files in the spectral form knowledge base is large enough and far larger than the total number of channels of the spectral form files, the peak position similarity energy spectrum searching method has remarkable advantages.

Description

technical field [0001] The invention relates to a data processing technical method for elemental analysis, in particular to a data processing technical method for neutron activation elemental analysis. Background technique [0002] Building materials, coal, thermal power, metallurgy, mining and other industries need to analyze the element composition and content of bulk materials on the conveyor belt to guide production. As a main online elemental analysis instrument, the multi-element analyzer using neutron activation prompt gamma analysis technology can realize continuous analysis of bulk materials on the conveyor belt. [0003] At present, the analysis principle of this type of instrument is that neutrons are irradiated on the material and react with the nuclei of each element in the material. Different elements emit characteristic γ-rays with different energies and intensities. By detecting the energy of characteristic γ-rays, the types of elements are identified. The e...

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Problems solved by technology

[0005] However, the disadvantages of this method are: unknown elements cannot be analyzed, and elements without a mathematical model cannot be analyzed; at the same time, materi

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