Investigation of crystal imperfections with multiple X-Ray interferometers

Crystal bending in triple-Laue X-ray interferometry. Part II. Phase-contrast topography

“…Specifically, we noted that the interferometer sees the displacement fields of the splitter's and analyser's inner sides. This result and, in turn, the prediction that opposite bending will result in the observation of opposite (compressive or tensile) strains opened the way to an experimental investigation by the phase-contrast imaging of crystal interferometers (Bonse & Hart, 1966;Bonse et al, 1976;Ohler et al, 1999;Bergamin et al, 2000;Fodchuk & Raransky, 2003;Massa et al, 2009Massa et al, , 2020aDrmeyan et al, 2013Drmeyan et al, , 2017, which is the subject of this paper.…”

Interferometric Method for Determination of X–ray Train Length

“…X-ray interferometers appeared as a result of the discovery of anomalous passage (the Borman effect) and of following rapid development of the dynamical theory of X-ray interference [7][8][9][10][11][12][13]. Based on the experience of making interferometers of different design and applications [14][15][16][17][18][19], we have designed and made special interferometer and suggested new interferometric method for measurement of X-ray train length (duration of coherent radiation), which was the aim of this work.…”