Diffusion and depopulation of the metastable Cd3P0,2states in collisions with Ne and Cd atoms

The aims of this study are to determine the rate coefficients for quenching of the Cd 3P0,2 by the ground state Ne atoms and their diffusion coefficients in neon since there is a lack of such data in the literature. We used a standard afterglow technique. A pulse periodic DC discharge (60 µs pulses at repetition rate − 2 KHz) was fired in a quartz cell with 3.6 cm I D and length 20 cm. The measurements were carried out between 520 and 577 K gas temperature. The pressure of the carier gas Ne was in the range 0.2–7.5 Torr.