Abstract
Measurements of current, voltage, and laser emission of an X-ray preionized selfsustained XeCl* laser discharge using Ne:Xe:HCl gas mixtures are compared with predictions of spatially homogeneous model calculations. As a prerequisite an accurate and detailed model of the electrical circuit is developed. For current and voltage measurements electro-optical methods are used. Corrections to the measurements and the reliability of the final data are discussed in detail. Using collision cross sections from the recent literature and stepwise vibrational excitation of HCl up tov=3 reproduces the electrical conductivities measured in a large field of parameters. The reliability and numerical stability of the model calculations depend on the way in which the e-HCl collision terms of the Boltzmann equation and the e-HCl collision rates are evaluated. The predicted total laser pulse energies are too small, but the shape and timing of the pulse correspond to the experimental values.
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