Stark shifts and transition probabilities within the Kr I spectrum

Abstract

On the basis of 28 experimentally determined prominent neutral krypton (Kr I) line shapes (in the 5s-5p and 5s-6p transitions), we have obtained electron (d e ) and ion (d i ) contributions to the total Stark shifts (d t ). Stark shifts are also calculated using the semiclassical perturbation formalism (SCPF) for electrons, protons and helium ions as perturbers up to 50 000 K electron temperatures. Transition probabilities of spontaneous emission (Einstein's A k,i values) have been obtained using the relative line-intensity ratio method.The separate electron (d e ) and ion (d i ) contributions to the total Stark shifts are presented, as well as the ion-broadening parameters, which describe the influence of the ion-dynamical effect on the shift of the line shape, for neutral krypton spectral lines. We made a comparison of our measured and calculated d e data and compared both of these with other available experimental and theoretical d e values.

Mass dependency of turbulent parameters in stationary glow discharge plasmas

“…Plasmas 20, 052304 (2013) neon, 26 argon, 27 and krypton, 28 respectively. To get the correct line shape, we subtract the instrument line broadening, which is achieved by using an argon calibration lamp.…”

Measurements of branching fractions, absolute transition probabilities andJ-file sum rule for the 4p55p→4p55s transitions array in neutral krypton

“…Thus, by combining the lifetime of an upper level with the branching fractions of all the spectral lines connected with the upper level, one can determine Chang et al [13] c Schmoraner and Volz [16] Figure 3. A comparison of the present measurements (solid black squares), solid red circles [20] and solid blue triangles NIST Database [18] versus wavelength.…”

“…In the last three columns, we have compared our data with the experimentally measured [18,20] and theoretically calculated [10], based on the intermediate coupling theory, respectively. A graphical comparison of transition probabilities as a function of wavelength measured in this work, experimentally reported values [20] and that in the NIST Database [18] is depicted in figure 3. The transition probabilities data for the 5p'[1/2] 0 →5 s[3/2] 1 transition line is missing in our measurements as well as in the NIST database [18].…”

“…Later, transition probabilities of 35 lines of krypton in the spectral region 450-580 nm were measured using the emission technique [19]. Transition probabilities of thirteen spectral line of Kr I belongs to 5p→5 s transition array of neutral krypton have been deduced using the discharge tube and stark width was also investigated [20].…”

“…A comparison of the present measurements (solid black squares), solid red circles[20] and solid blue triangles NIST Database[18] versus wavelength.…”