AN EMPIRICAL CORRECTION FOR ABSORPTION ANISOTROPY
AN EMPIRICAL CORRECTION FOR ABSORPTION ANISOTROPY
复制标题
DOI：
10.1107/s0108767394005726
复制
发表时间：
1995-01-01
期刊：
影响因子：
--
通讯作者：
BLESSING, RH
中科院分区：
文献类型：
--
作者：
BLESSING, RH
描述了一种最小二乘过程，用于对由多个等效的和/或等效的方位角旋转强度测量采样的经验透射表面进行建模。拟合函数是偶数阶真实的球谐函数的和y（lm）（-u（0））+ y（lm）（u（1）），2 ≤ l = 2 n ≤ 8。函数的自变量是单位方向矢量的分量，-u（0）用于反向入射光束，u（1）用于散射光束，参考晶体固定的笛卡尔轴。该程序已通过计算对照标准吸收测试数据进行了检查。
A least-squares procedure is described for modeling an empirical transmission surface as sampled by multiple symmetry-equivalent and/or azimuth rotation-equivalent intensity measurements. The fitting functions are sums of real spherical harmonic functions of even order, y(lm)(-u(0)) + y(lm)(u(1)), 2 less than or equal to l = 2n less than or equal to 8. The arguments of the functions are the components of unit direction vectors, -u(0) for the reverse incident beam and u(1) for the scattered beam, referred to crystal-fixed Cartesian axes. The procedure has been checked by calculations against standard absorption test data.