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Figure 5
Example of calculation of the reflection amplitude r2 of a Si 111 crystal of 2 µm thickness from the amplitudes of the half-layer (1 µm). The reflectivity of the bilayer r2 can be obtained as an infinite sum r2 = [r+rt\bar{t}] + [rt\bar{t}(r\bar{r})] + [rt\bar{t}(r\bar{r})^{2}] + … = [r[1+t\bar{t}\sum_{n\,=\,0}^{\infty}(r\bar{r})^{n}]] = [r\{1+[t\bar{t}/(1-r\bar{r})]\}]. Calculations done with crystalpy for a photon energy of 8 keV.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 31| Part 6| November 2024| Pages 1469-1480
https://doi.org/10.1107/S160057752400924X
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