Electronic-excitation transfer collisions in flames-III: Cross sections for quenching and doublet mixing of Rb(52P32, 12) doublet by N2, O2, H2 and H2O |
| |
Authors: | P.L. Lijnse P.J.Th. Zeegers C.Th.J. Alkemade |
| |
Affiliation: | Fysisch Laboratorium, Sorbonnelaan 4, Rijksuniversiteit, Utrecht, the Netherlands |
| |
Abstract: | Weighted average quenching cross sections for the Rb(52P) doublet by N2 and H2O were determined in flames with temperatures ranging from 1500 to 2500 K by measuring the fluorescence efficiency. The values found are and over the entire temperature range. At a temperature of 1720 K, mixing cross sections were obtained for the same doublet with N2, H2, O2 and H2O molecules. The cross sections found are: , ; , , , . The ratios σ12/σ21 were measured independently and were found to agree with the detailed- balance condition within 3 per cent. A critical comparison of the flame values with previous literature data on N2-cross sections shows that both mixing and quenching cross sections are temperature dependent in the range from 300 to 2500 K. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|