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Abstrac: The main purpose of this research work is to compare between two different calibration techniques for the spectrometer with CCD detectors. The emission spectra of two calibration lamp sources Hg(Ar) and Xe , and the transmission spectra of Holmium and Didymium standard glass filters are used to obtain wavelength calibration monochromator in the UV, visible, and near infrared spectral regions. Matching the output signal of the monochromator with the standard spectra of the sources and the transmission of the standard glass filters, we are able to determine and calculate the monochromator wavelength error of the obtained spectra. Subsequently, this error can be added to the uncertainty budget in wavelength calibrating of the monochromator. A detailed description of the set-up and how the calculation estimations are done are reported.

Determination of Wavelength Error in Two Calibration Techniques for CCD Spectrometer