Electric discharge excited TlI-Xe mixtures

Pulsed, high‐power, nonequilibrium discharges have been operated in TlI‐Xe mixtures at typical TlI densities of 1015–1017 cm−3, Xe densities of ∼1019 cm−3, and power densities of 105–106 W cm−3. The steady‐state emission spectrum was measured for the wavelength region 275‐850 nm, and it was used to obtain the populations of the Tl and Xe excited states. The fraction of TlI dissociated in the discharge is also reported as a function of TlI, Xe, and current density. A phenomenological model for the results is discussed.