The optimization of coal on-line analysis system based on signal-to-noise ratio evaluation

被引：15
作者：
Li, JiaTong [1 ]
Jia, WenBao [1 ,2 ]
Hei, DaQian [1 ,2 ]
Cai, PingKun [1 ]
Cheng, Can [1 ]
Tang, Yajun [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Engn, Dept Nucl Sci & Engn, Nanjing 211106, Jiangsu, Peoples R China
[2] Collaborat Innovat Ctr Radiat Med, Jiangsu Higher Educ Inst, Suzhou 215000, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2018年 / 318卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Signal-to-noise ratio (SNR); MCNP simulation; PGNAA; System optimization; NATIONAL-INSTITUTE; INSTRUMENT; STANDARDS;
D O I：
10.1007/s10967-018-6173-x
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In the present study, the coal on-line analysis system is optimized, and the signal-to-noise ratio (SNR) is quantified and set as the evaluation criterion for device optimization. 3cm lead with 3cm polyethylene is set as moderator, and 13cm lead is for a better shielding. Besides, the neutron generator is set at the center of device, and 72cm is set as the better distance of axis between neutron generator and detector. Finally, by comparing with the previous experimental results, the Mean Absolute Percentage Error of element with the value less than 1% is improved after device optimization by SNR evaluation.
引用
收藏
页码：1279 / 1286
页数：8
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