Vacuum Ultra Violet Spectroscopy
There are several names given to wavelengths below the Ultra Violet. However, because of the absorption of the air down to few nanometers, and the need to evacuate any part of the environmental
The VUV Reflectance system consists of a VUV light source combined with a monochromator. The samples are mounted in a 6 positions sample wheel in the center of a theta-2 theta reflectometer and an internal CCD is making reflectivity measurements for deviation angles going from 5° to 175°. Transmission measurement can also be done by putting the detector in line with the incident beam (straight measurement).
Inside view of the Theta-Two theta reflectometer
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