GAS-PHASE SPECTRA OF RADIATIVE RECOMBINATION OF NITROGEN-ATOMS AT HELIUM TEMPERATURES
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abstract
The lowering of temperature from 300 K to 10 K caused drastic changes in the spectral composition of the recombinational afterglow of N atoms: the glow due to the B3g | A 3+u transition with = 12-9 ( 580 nm and 540 nm) disappeared whereas levels with = 8-5 ( 560 nm) appeared. This effect is exlained in terms of Campbell and Thrush's recombination luminescence model (emitting B 3Hg state populated by radiationless transition from the lower A 3+u state of the N2 molecule). 1978.