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Study on element detection and its correction in iron ore concentrate based on a prompt gamma-neutron activation analysis system

  • Long Zhao
  • Xu Xu
  • Jing-Bin LuEmail author
  • Ya-Lin Gong
  • Xiang-Lin Li
  • Wei Zhang
  • Qing-Min Shang
  • Qing-Feng Song
  • Yan-Feng Li
Article
  • 15 Downloads

Abstract

A prompt gamma-neutron activation analysis (PGNAA) system was developed to detect the iron content of iron ore concentrate. Because of the self-absorption effect of gamma-rays and neutrons, and the interference of chlorine in the neutron field, the linear relationship between the iron analytical coefficient and total iron content was poor, increasing the error in the quantitative analysis. To solve this problem, gamma-ray self-absorption compensation and a neutron field correction algorithm were proposed, and the experimental results have been corrected using this algorithm. The results show that the linear relationship between the iron analytical coefficient and total iron content was considerably improved after the correction. The linear correlation coefficients reached 0.99 or more.

Keywords

Prompt gamma-neutron activation analysis Self-absorption Energy spectrum Compensation Correction Iron ore concentrate 

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Copyright information

© China Science Publishing & Media Ltd. (Science Press), Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Chinese Nuclear Society and Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Long Zhao
    • 1
    • 2
  • Xu Xu
    • 1
  • Jing-Bin Lu
    • 1
    Email author
  • Ya-Lin Gong
    • 2
  • Xiang-Lin Li
    • 3
  • Wei Zhang
    • 2
  • Qing-Min Shang
    • 2
  • Qing-Feng Song
    • 2
  • Yan-Feng Li
    • 2
  1. 1.College of PhysicsJilin UniversityChangchunChina
  2. 2.Dandong Dongfang Measurement & Control Technology Co., LtdDandongChina
  3. 3.Hunan First Normal UniversityChangshaChina

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