Arai实测谱分布数据的应用  

Application of Arai′s Experimental Spectral Distribution Data

作　　者：王桂华[1] 谭秉和[1] 

机构地区：[1]北京科技大学化学系,北京100083

出　　处：《光谱学与光谱分析》2002年第3期498-500,共3页Spectroscopy and Spectral Analysis

摘　　要：对Arai的靶原级谱分布数据 ,通过插值、拟合处理 ,获得适用于数值积分的Δλ =0 0 0 2nm的谱分布数据 ,建立了新的谱分布数据文件 ,应用于FPM程序中。并对耐热钢GH131进行实验研究。理论强度与测量强度的相关性良好 ;基本参数法与理论影响系数法分析结果与确认值一致 ,对Cr,Ni分析的相对误差 <1 0 %。结果表明 :经处理的Arai的靶原级谱分布数据应用于FPM程序 ,提高了分析准确性 ,并扩大了基本参数法与理论影响系数法的应用范围。A new spectral distribution data file is set up by handling Arai ' s experimental data of spectral distribution, through the procession of interpolation and fitting. The distance of wavelength is 0.002nm. The data file is applied to our FPM program and then to the analysis of refractory steels GH131. Correlation between theoretical and measured intensities is good. Results of theoretical influence coefficient method and fundamental parameter method are consistent with certified values; the relative error is smaller than 1 % to Cr and Ni. The results show the accuracy is improved and the application range of FP and SFP is enlarged.

关 键 词：Arai 谱分布数据 X-光管原级谱分布 影响系数法 基本参数法 X射线 荧光光谱分析 

分 类 号：O657.34[理学—分析化学]