Experimental research on the feature of an x-ray Talbot–Lau interferometer versus tube accelerating voltage*
Wang Sheng-Haoa)†, Margie P. Olbinadob), Atsushi Momoseb), Hua-Jie Hana), Hu Ren-Fanga), Wang Zhi-Lia), Gao Kuna), Zhang Kaic), Zhu Pei-Pingc), Wu Zi-Yua),c)‡
       
(a) Curve of fringe visibility versus the accelerating voltage of the tube; (b) visibility image without the sample at 35 kV. The mean value in the black rectangle (800 pixels×800 pixels) is regarded as the fringe visibility when plotting the curve in panel (a).