My. Tretyakov et al., Real atmosphere laboratory measurements of the 118-GHz oxygen line: Shape,shift, and broadening of the line, J MOL SPECT, 208(1), 2001, pp. 110-112
For the first time the 118-GHz line of the oxygen molecule was investigated
in the laboratory under a real atmosphere. The experiment was carried out
by modern resonator spectroscopy methods on the laboratory air at atmospher
ic pressure. The shape of the line under the real atmosphere was found to f
it the Van Vleck-Weisskopf profile within experimental accuracy. The air br
oadening parameter value was defined as 2.14 +/- 0.07 MHz/Torr. The observe
d atmosphere oxygen line central frequency was found to be shifted down at
about 150 MHz from the line center measured at low pressures, which gives a
value of -0.19 +/- 0.08 MHz/Torr for the air shift parameter. A comparison
with previous investigations is presented and reprocessing of some experim
ental results of other authors was carried out. Results of reprocessing agr
ee with the findings of the present paper. (C) 2001 Academic Press.