Optimization of PGNAA set-up for the elements detection in aqueous solution

查看全文 作　　者：JIA [1]WenBao;HEI [1]DaQian;CHENG [1]Can;ZHANG [1]HaoJia;SHAN [1]Qing

机构地区：[1]College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics

出　　处：《Science China(Technological Sciences)》索引2014年第57卷第3期,共5页

基　　金：supported by the National Natural Science Foundation of China(Grant No.11375087);National Key Scientific Instrument and Equipment Development Projects(Grant No.2013YQ40861) 摘　　要：A prompt gamma neutron activation analysis(PGNAA)set-up was developed for the elements detection in aqueous solution,which includes a 241Am-Be neutron source and a 4-inch BGO detector.The geometry of set-up is determined by a series of simulations with the MOCA code to improve the efficiency of the elements detection.The thermal neutron flux and the gamma-ray self-absorption are considered during the optimization calculations.Experiments were performed to validate the set-up using samples including chlorine and mercury,respectively.The result shows that the characteristic peak count has linear relationship with the chlorine and mercury concentration changing.The minimum detectable concentrations of chlorine and mercury were found as 54 mg/L and 51.4 mg/L,respectively. 关键词：PGNAA 检测效率优化计算水溶液元素设置中子活化分析 BGO探测器

相关文献

参考文献（11）
引证文献（5）
耦合文献（0）

参考文献(11)

引证文献(5)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Optimization of PGNAA set-up for the elements detection in aqueous solution

参考文献(11)

引证文献(5)

用户提示