Hamamatsu deuterium lamp
We use a Hamamatsu deuterium lamp with a magnesium fluoride window (H2D2 lamp, model L15094). For more information, go to this online pdf. On page 13 you find the specifications for the model we have. The lamp needs to warm up for several minutes before reaching its nominal intensity. We expect the intensity of the lamp to decrease during measurements due to hydrocarbons accumulating on the window. If the intensity gets too low, it can be partially restored by turning the lamp on in air for a while.
The link below has more information than the brochure linked above.