Measurement of transition probabilities in Kr II UV and visible spectral lines

This work reports an extensive collection of 120 atomic transition probabilities of Kr II lines in the spectral region 350–720 nm, all of them measured in an emission experiment. For many of them, these are the first data up to the authors' knowledge. Relative intensity measurements have been obtained on a pulsed discharge lamp and the absolute Aki-values have been calculated by considering the available data from the literature as reference for the plasma temperature diagnosis. Excitation temperature (14 000–28 000 K) has been determined by using the Boltzmann-plot method. The plasma electron density (0.2–0.8 × 1023 m−3) has been determined by two-wavelength interferometry. This work extends a previous one already published by our laboratory [1, 2]. Comparisons have also been made with previous literature values.