A high-pressure continuous light source has been developed for the near-vacuum-ultraviolet region, down to 1100 Å. This source is based on a pulsed discharge in rare gases and is characterized by high intensity, small dimensions, and low consumption.
Zohar Ophir, Uzi Even, Baruch Raz, and Joshua Jortner, "Pulsed high-pressure lamp for the vacuum ultraviolet," J. Opt. Soc. Am. 64, 1175-1177 (1974)