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Spectral radiances of the Hg 253.7 nm resonance line emitted along a diameter of the high-pressure mercury discharge at the maximum (5 ms) and the minimum (0 ms) current phase.
Line-of-sight measurements of the radiance at the peak of the red wing (longer wavelength) of the self-reversed Hg 253.7 nm resonance line for two moments within the ac–cycle vis à vis the lateral distance of the line-of-sight to the arc axis.
The product of Bartels’ parameters as a function of the lateral distance of the line-of-sight to the arc axis for two moments within the ac–cycle.
Radial profile of the excitation temperature of the resonance level of mercury given rise to the Hg 253.7 nm line for two moments within the ac–cycle.
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