41. We can find the angle at which a first minimum is obtained in the diffracted light by the following reasoning. 42. The sample surface diffracts electrons, and some of these diffracted electrons reach the detector and form the RHEED pattern. 43. The image on the right shows a laser beam diffracted by a grating into = 0, and ? beams. 44. The cross section of the diffracted beam may or may not be identical to the one of the incident beam. 45. This produces a redundancy of the diffracted data which could be inverted with ptychographical iterative engine algorithm ( PIE ). 46. When a star is observed with a telescope, the light is diffracted or spread apart into an Airy disk. 47. The contribution to the diffracted x-ray intensity is therefore larger for atoms with larger atomic number ( Z ). 48. As TEM specimens are typically ~ 100 nm thick, and the electrons typically have an energy of 100 400 diffracted . 49. Two of the four merge at a third grating of period 2P . Each is further diffracted by the third grating. 50. Some of the X-rays are diffracted _ bent _ as they interact with electrons on their way through the crystal.
