Collision-Time Asymmetry and Speed-Dependent Effects on the $\text{}^{114}$Cd 326.1 nm Line Perturbed by Kr

Using a laser-induced fluorescence method, detailed analysis of profiles of the $\text{}^{114}$Cd 326.1 nm line perturbed by krypton was performed which revealed departures from the ordinary Voigt profile. These departures are shown to be consistent with fits of experimental profiles to a speed-dependent asymmetric Voigt profile. Coefficients of the pressure broadening, shift, and collision-time asymmetry are determined and compared with those calculated in the adiabatic approximation for the van der Waals, Czuchaj-Stoll, and Morse potentials.