Abstract
In a vacuum chamber a plasma is produced by shining a pulsed Nitrogen laser, 20 mJ and 20 ns (Nordstrom, 1995), focused in an area of 0.1 mm2 over a high purity polycrystalline Zirconium surface. This is accomplished by an optical system coupled to a monochromator, with a 0.1 A resolution power, by detecting the visible and ultraviolet radiation for Zr I and Zr II. For the transition a2 H4.5 → y2 G3.50, measurements are performed at different distances with respect to the impact area, to determine the Doppler and Stark effects dependence on the laser fluency (J/cm2). The Zr II ions velocity is determined in order to estimate the Doppler broadening effect in the fitting of the Voigt profile for the spectral line studied. These measurements are performed in a shoot to shoot way.
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