For Lamp 1; started at 0.0mm, took frames of 0.5s exposure time increasing in 0.5mm increments up to 12mm
For Lamp 2; started at 0.0mm, took frames of 0.5s exposure time increasing in 0.5mm increments up to 12mm.
For Lamp 2, had to put a piece of paper in between fibre optics and lamp as it was incredibly bright
Spectroscopic Flats/Darks
Used halogen lamp which has a broadband spectrum
Took frames of exposure time 0.5s, started at 0.0mm, increasing in 0.5mm increments up to 12mm
If you were to plot the whole spectrum, one would see that towards the edges the intensity will decrease; this is because the camera is not sensitive to all wavelengths - further calibration
Scanning of individual spectral lines
By observation, one can see that spectral lines become more out of focus when they are closer to the edges of the frame.
For each lamp, scan each individual (bright) spectral line across the entirety of frame
Plot the standard deviation of the line against the micrometer position to see how much wider the line gets as it approaches the egdes
For the mixed lamp (Cd, Hg, Zn), found a bright line and took frames increasing in increments of 0.05mm at 0.5s exposure time to record the scan. Found this was excessive, so for all other lines and lamps, increased in increments of 0.1mm.