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

被引：0

作者：

Long Zhao ^{[1
,2
]}

Xu Xu ^{[1
]}

Jing-Bin Lu ^{[1
]}

Ya-Lin Gong ^{[2
]}

Xiang-Lin Li ^{[3
]}

Wei Zhang ^{[2
]}

Qing-Min Shang ^{[2
]}

Qing-Feng Song ^{[2
]}

Yan-Feng Li ^{[2
]}

机构：

[1] College of Physics, Jilin University

[2] Dandong Dongfang Measurement & Control Technology Co., Ltd

[3] Hunan First Normal University

来源：

NuclearScienceandTechniques | 2019年 / 30卷 / 04期

关键词：

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

D O I：

暂无

中图分类号：

O652 [分析作业方法与技术]; P575 [矿物的鉴定及分析];

学科分类号：

070302 ; 070901 ; 081704 ;

摘要：

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.

引用

页码：19 / 27

页数：9

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