Imaging of Emitting Mercury Atom Spatial Distributions in a Capillary Discharge Lamp by Using Tomography Approach

A tomographic reconstruction of emitting mercury atom spatial profiles in a capillary lamp with an inner diameter of 1 mm has been made for the first time in this work. Measurements of emission intensity have been performed for the capillary lamp in a xenon-mercury mixture in dependence on the operation position. Intensities were measured for the 546.1-nm Hg line for vertically and horizontally operated lamps. We have found that the emitting mercury atoms in the state 7³S₁ (the upper state of the 546.1-nm transition) are differently distributed within the lamp in the vertical and horizontal lamp positions.