VUV spectra of a barrier discharge in a krypton-xenon mixture at the pressu
re P = 400 hPa were experimentally studied. The xenon addition was varied i
n a range of 0.01-1%. The supply voltage frequency was 20 kHz. The form of
spectra and their evolution at different xenon impurity concentrations were
analyzed by solving the system of nonlinear differential equations simulat
ing the main processes taking place in the active phase of a discharge and
in the afterglow. The analysis supports the results obtained earlier and qu
alitatively describes the experimental spectra. (C) 2000 MAIK "Nauka/Interp
eriodica".