It is very difficult to reflect hard X-rays and gamma rays with a mirror as they pass through most materials, but they can be diffracted by crystal planes. A so-called Laue lens uses crystals that are arranged to form a lens. However, if you use regular crystals with flat crystal planes, the ...
cosine is developing and producing the mirror modules for Athena (Advanced Telescope for High ENergy Astrophysics), the X-ray observatory mission selected by ESA, within its Cosmic Vision program, to address the Hot and Energetic Universe scientific theme. Athena will be the largest X-ray ...