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) μ of PMMA versus accelerating voltage, (b) and (c) the computing process of μ at 35 kV. The black curve in panel (c) is the absorption projection value of the section profile chosen as shown in panel (b), while the red line in panel (c) is the best fit curve when μ is 0.57724 cm−1. The two small peaks indicated by the black arrows in panel (c) point out the edge enhanced phenomenon in the retrieved absorption image.