The Dispersion Optimiser enables the dispersion on Andor Shamrock spectrographs to be ne tuned. Optimised
dispersion will ensure that the calibration of wavelengths falling on the sides of the spectrum/sensor is accurate.
Using more than 1 wavelength on each grating will ensure that the new values calculated are optimised for the useful
wavelength ranges on all installed gratings. A good calibration will be obtained if 2 wavelengths on each grating are
tracked, at a total of 6 if there are 3 gratings installed. The wavelengths selected should be from either side of the
wavelength region of interest, e.g. if a grating is being used to obtain spectra in the region of 400nm to 900nm then, if
an Hg light source is available, the 912nm line should be used to ensure accuracy at the high end of the range and then
either the 365nm line or the 435nm line in addition to cover the low end.
The Dispersion Optimiser is found under the Calibrate menu in Solis.
The Dispersion Dialog is as follows:
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