title: A gas discharge lamp for the extreme ultraviolet.
abstract: A gas discharge lamp is described suitable for producing the many-lined spectrum of hydrogen (85-160 nm) and the Hopfield continuum in helium (60-100 nm). It was designed for use with a window-less monochromator to study photoionization and operates at pressures below 50 Torr. The hydrogen lamp has a mode of operation which concentrates the discharge into the monochromator entrance slit.
authors.forename: A J
authors.initials: AJ
authors.lastname: Nicholson