Measured lifetimes of the C3Πustate of N2and the a3Σg+state of H2
- 1 August 1971
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 4 (8) , 1063-1069
- https://doi.org/10.1088/0022-3700/4/8/010
Abstract
The electron-phonon coincidence technique was applied to the measurement of lifetimes in N2 and H2. In this method the inelastically scattered electrons are analysed and used to select the upper state of interest, thus eliminating the systematic errors due to cascading and the spectral overlap of different band systems. The lifetimes of the first three vibrational levels of the C3 Pi u state of N2 were found to be 35.6+or-0.5, 34.9+or-1.8 and 34.5+or-2.3 ns, and those of the first two vibrational levels of the a 3 Sigma g+ state of H2 were found to be 11.0+or-0.42 and 10.6+or-0.6 ns.Keywords
This publication has 19 references indexed in Scilit:
- A new electron-photon coincidence method for the measurement of lifetimes in atoms and moleculesJournal of Physics B: Atomic and Molecular Physics, 1971
- An electron-photon coincidence method for measuring atomic and molecular lifetimesChemical Physics Letters, 1969
- Absolute cross sections for electron excitation of the second positive bands of nitrogenJournal of Physics B: Atomic and Molecular Physics, 1969
- The Astrophysical Significance of the Continuous Spectrum of the Hydrogen Quasi-MoleculeThe Astrophysical Journal, 1968
- Lifetime measurement of molecular states with an accelerated ion beamPhysics Letters A, 1968
- Optical Lifetime Measurements Using a Positive Ion Van De Graaff AcceleratorApplied Optics, 1968
- Transition Probabilities for H2, D2, N2, N2+, and COThe Journal of Chemical Physics, 1966
- Oscillator strengths for the N2 second positive and N+2 first negative systems from observations of shock layers about hypersonic projectilesJournal of Quantitative Spectroscopy and Radiative Transfer, 1964
- Calculation of the Oscillator Strengths for certain Band-Systems of N2 and C2Proceedings of the Physical Society. Section A, 1951
- Continuous Spectra ofandPhysical Review B, 1939