一种去除小角散射中狭缝污染的矩阵方法

A MATRIX METHOD DESMEARING THE DISTORTION CAUSED BY SLIT COLLIMATOR SYSTEM IN SMALL ANGLE SCATTERING

对于采用狭缝准直系统的小角散射谱仪,由此产生的散射强度曲线畸变污染必须予以扣除。在分割分布函数法的基础上,发展了一种去污染矩阵方法;在特定条件下,用简单的线性运算取代了常规的求解积分方程方法;实际使用效果良好。涉及矩阵运算和小角散射实验测量的特殊之处也进行了详细讨论。

A new matrix desmearing method in small angle scattering (SAS) has been developed. The feasibilities make it may be applied conveniently to all types of SAS spectrometer which have to use slit collimatior system at the research reactor with low and medium flux. The experimental results show that the method is consistent with the ordinary desmearing method.