“…Laue crystals have been widely used in many applications, especially for highenergy X-rays. Apart from X-ray spectroscopy (Lecante et al, 1994;Jagodzin ´ski et al, 2019;Pascarelli et al, 2016;Qi et al, 2019;Szlachetko et al, 2013), Laue crystals have been used for, for example, K-edge subtraction imaging (Zhu et al, 2014), multiple energy X-ray imaging (Bassey et al, 2016) and X-ray beam expanding (Martinson et al, 2014).…”