Figure 2
Spectra of ellipticity of polarization of an X-ray beam transmitted through (a) (100)-, (b) (010)- and (c) (001)-oriented plate crystals. The ellipticity of polarization of the incident X-ray beam produced by the phase retarder was set to be (a) +0.03, (b) +0.035 and (c) +0.03. The clear difference between the spectra in (a), (b) and (c) reveals that X-ray triple refraction is taking place in the monoclinic crystal. |