Rate measurements of reactions of helium metastable species at atmospheric pressures. II. He2 (2 3Σ+u) in pure afterglows
- 1 September 1977
- journal article
- conference paper
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 67 (5) , 1942-1947
- https://doi.org/10.1063/1.435126
Abstract
Using resonance absorption spectrometry the rates of the reactions He2(2 3Σ+u)+He2(2 3Σ+u) →products and He2(2 3Σ+u)+Ne→products have been measured in the afterglow period of electron beam excited discharge plasmas in helium at atmospheric pressures. The reported rate for the first reactions at (1.3±0.3)10−10 cm3 sec−1 is an order of magnitude lower than previously reported values. A value for the inverse transition probability of the 3 3Πg←2 3Σ+u electronic transition has also been established.Keywords
This publication has 13 references indexed in Scilit:
- Rate measurements of reactions of helium metastable species at atmospheric pressures. I. He (2 3S) in pure afterglowsThe Journal of Chemical Physics, 1977
- High-pressure helium afterglow at room temperaturePhysical Review A, 1976
- Excited state chemistry of the low-pressure helium afterglow. I. Reactions involving metastable species, 23S and 2s3Σu+Journal of Physics B: Atomic and Molecular Physics, 1975
- Behavior ofMetastable Atoms in Weakly Ionized Helium PlasmasPhysical Review A, 1971
- Time-Dependent Study of the Emitted Light and Electron Density in a Low-Pressure Helium AfterglowPhysical Review B, 1968
- Cross Section for the Reaction He(23S) +He(23S)The Journal of Chemical Physics, 1966
- Studies of the Mechanism of Electron-Ion Recombination. IIPhysical Review B, 1964
- Absorption Studies of Helium Metastable Atoms and MoleculesPhysical Review B, 1955
- Positive Ions in the Afterglow of a Low Pressure Helium DischargePhysical Review B, 1952
- The structure of the band spectrum of helium.— IIProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1923