Lifetimes of N2O+(A), CS+2(A), and CS+2(B) states produced by pulsed EUV photons

Pulsed Ne i resonance lines (73.6 and 74.4 nm) were generated by a dc discharge lamp consisting of a charging resistor, a coaxial capacitor, and a spark gap. By a single-photon counting technique, the radiative lifetimes of N2O+(A 2Σ+, v′1=0 and 1), CS+2(A 2Πu), and CS+2(B 2Σ+u) states were measured. The Stern–Volmer treatments gave the quenching rate constants for the excited ions in the collision with the neutral parent triatomic molecules.