REGULARITIES OF STARK PARAMETERS ALONG THE PERIODIC-TABLE

Stark width and shift dependence on the upper-level ionization potential of the corresponding transitions have been investigated on the basis of the semiclassical and semiempirical data. The simple formulas obtained from that dependence can be used to predict the Stark broadening and shift parameters of resonance n0s - n0p and n0s - (n0 + 1)p (n0 for ground level) and off-resonance [(n0 + 1)s - (n0 + 1)p lines of neutral atoms and ions (up to several stages of the ionization). The predicted data are compared with the known experimental and theoretical values. The agreement is found to be within the quoted experimental and theoretical uncertainties. All data are given at the electron density N = 10(17) cm-3 and different electron temperatures T (for neutral atoms and singly charged ions T = 10,000, 20,000, 40,000, and 80,000 K; for doubly and multiply charged ions T = 20,000, 40,000, 80,000, and 160,000 K).