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)‡
       
Black and red lines show the emission spectra of the x-ray tube at the accelerating voltage of 35 kV and 45 kV, respectively. The blue dashed line indicates the designed energy of the phase grating (27 keV).