Objective: Set up and calibrate a prism spectrometer
A prism spectrometer utilises the dispersion of light into its spectral components by means of a prism to measure optical spectra. In order to measure wavelengths, it is necessary to calibrate the system since the angular dispersion is nonlinear. In this experiment the known spectrum of a mercury (Hg) lamp will be used for calibration purposes and then measurements will be made for a cadmium (Cd) lamp.
![Experiment: Prism Spectrometer (230 V, 50/60 Hz), 8000772 [UE4080100-230], Spectrometry](/imagelibrary/UE4080100-230/UE4080100-230_01_Experiment-Prism-Spectrometer-230-V-5060-Hz.jpg)
![Experiment: Prism Spectrometer (230 V, 50/60 Hz), 8000772 [UE4080100-230], Spectrometry](/thumblibrary/UE4080100-230/UE4080100-230_01_1200_1200_Experiment-Prism-Spectrometer-230-V-5060-Hz.jpg)
![Control Unit for Spectrum Lamps (230 V, 50/60 Hz), 1021409 [U219051-230], Spectrum Tubes and Spectrum Lamps](/thumblibrary/U219051-230/U219051-230_01_140_140_Control-Unit-for-Spectrum-Lamps-230-V-5060-Hz.jpg)
![Spectrometer-Goniometer S, 1008673 [U22050], Spectrophotometer](/thumblibrary/U22050/U22050_01_140_140_Spectrometer-Goniometer-S.jpg)
![Spectral Lamp Hg 100, 1003545 [U8476870], Spectrum Tubes and Spectrum Lamps](/thumblibrary/U8476870/U8476870_01_140_140_Spectral-Lamp-Hg-100.jpg)
![Spectral Lamp Hg/Cd, 1003546 [U8476875], Spectrum Tubes and Spectrum Lamps](/thumblibrary/U8476875/U8476875_01_140_140_Spectral-Lamp-HgCd.jpg)
![Operating Unit for Fine-Beam Tube, 1009948 [U8481425], Electron Tubes D](/thumblibrary/U8481425/U8481425_01_140_140_Operating-Unit-for-Fine-Beam-Tube.jpg)
![Complete Fine Beam Tube System, 1013843 [UL18575], Electron Tubes D](/thumblibrary/UL18575/UL18575_01_140_140_Complete-Fine-Beam-Tube-System.jpg)