期刊文献+

NaI(Tl)γ能谱分析中谱漂移的分时动态修正方法 被引量:5

A Time-dividing Dynamic Modification Method of Spectrum-drifting in the Analysis of NaI(Tl) Spectrum
下载PDF
导出
摘要 作者为解决NaI(Tl)γ谱仪在测量过程中谱漂移对解谱的影响,提出了一种软件分时动态谱漂移修正方法,并用3组份点源进行了检验.结果表明,修正后用神经网络方法解谱的误差由4.6%减少到3.0%. In the application of artificial neural networks for the analysis of gammaray spectra measured with a NaI(TI) spectrometer,the spectral drift problem is the main factor to effect analytical precision.The authors have developed a method based on software for correct spectral drift in the period of measurement.The whole measuring time for one spectrum has been divided to a series of time intervals,the spectrums been measured in every time intervals were saved to hard disk for each time interval,thus a series of spectrums were obtained.For every spectrum,correct its referenced peak to the peak of first spectrum,and added the all corrected spectrums to one spectrum,so obtaimed the drift corrected spectrum.A method for determonate peak center position was also present.The approved experiment with three kind of point radiation source shows that the analytical errors were reduced from 4.6% to 3.0% by this method.
出处 《四川大学学报(自然科学版)》 CAS CSCD 北大核心 2003年第3期502-506,共5页 Journal of Sichuan University(Natural Science Edition)
基金 国家自然科学基金委员会与中国工程物理研究院联合基金(10176015)
关键词 NaI(T1)谱仪 谱漂移修正 谱分析 NaI(Tl) spectrum spectrum-drifting modifing spectrum analysis
  • 相关文献

参考文献6

二级参考文献8

  • 1向长兴.一组实用γ谱分析效率刻度曲线[J].核电子学与探测技术,1994,14(6):363-366. 被引量:9
  • 2谢仲生.核反应堆物理数值计算[M].北京:原子能出版社,1996..
  • 3王世明 等.用蒙特卡罗方法对快中子通量衰减和多次散射的修正计算[J].四川大学学报:自然科学版,1988,25(2):203-209.
  • 4汲长松,第七届全国核电子学与核探测技术学术年会论文集.1,1994年
  • 5庄人遴,第七届全国核电子学与核探测技术学术年会论文集.3,1994年
  • 6张志康,清华大学学报,1993年,33卷,6期,46页
  • 7复旦大学 清华大学 等.原子核物理实验方法[M].北京:原子能出版社,1997.116-117.
  • 8徐家云,张一云,林理彬,白立新,范晓强,周厚全.快中子核次临界的多群蒙特卡罗计算[J].四川大学学报(自然科学版),1999,36(6):1045-1051. 被引量:4

共引文献34

同被引文献34

引证文献5

二级引证文献13

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部