Simulating the broad-band radiation of gas-discharge krypton-xenon plasma

摘要

Experimental broad-band continuum emitted by electric-discharge Kr+Xe plasma is interpreted as the KrXe* and Xe-2 molecules emission due to the 0(+)(P-3(1)) -> 0(+)(S-1(0)) bound-free transitions. Using the literature data for the 0(+)((3)p(1)) and the 0(+)(S-1(0)) internuclear potentials and a dipole moment function the relative intensities of the v, 0(+)(P-3(1)) -> epsilon, 0(+)(S-1(0)) transitions were calculated in relation to the transition wavelengths. It is noted that internuclear potentials for the Xe-2 molecule used in the present work allowed one to describe the long-wavelength wing of experimental spectra under consideration quite adequately. As to the KrXe* model continuum which is associated with the short-wavelength region of the same spectra it proved to be shifted to short-wavelength side at 5-7 nm in comparison with experiment, and its width proved to be half of experimental one.