Property of slice square polycapillary x-ray optics
Peng Shi-Qi1, 2, 3, Liu Zhi-Guo1, 2, 3, †, , Sun Tian-Xi1, 2, 3, Wang Kai1, 2, 3, Yi Long-Tao1, 2, 3, Yang Kui1, 2, 3, Chen Man1, 2, 3, Wang Jin-Bang1, 2, 3
       

(a) Rotate the coordinate axis; (b) shift the coordinate axis.