Measurement of the lifetimes of ionic excited states using the inelastic electron-photon delayed coincidence technique
- 1 December 1975
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 8 (17) , 2869-2879
- https://doi.org/10.1088/0022-3700/8/17/019
Abstract
A modification of the inelastic electron-photon delayed coincidence technique is described which permits the measurement of the lifetimes of ionic excited states. The technique has been applied to measurements in the N2 +, CO+ and CO2 + ions, and the essential results are as follows: N2 + B2 Sigma u +, v=0, 60.6+or-0.6 ns; CO+ B2 Sigma + 54.3+or-1.8 ns; CO2 + A2 Pi u 108.3+or-1.4 ns; CO2 + B2 Sigma u + 117.4+or-2.1 ns. Also presented are two coincidence energy-loss spectra of the continua resulting from the excitation of the A2 Pi u and B2 Sigma u + states respectively of CO2 +.Keywords
This publication has 28 references indexed in Scilit:
- Radiative Lifetimes of the A^2Π State of CO^+†Journal of the Optical Society of America, 1972
- Measurements of Energy and Angular Distributions of Secondary Electrons Produced in Electron-Impact Ionization of HeliumPhysical Review A, 1972
- Theorems on Pomeron couplingPhysics Letters B, 1971
- Measured lifetimes of the C3Πustate of N2and the a3Σg+state of H2Journal of Physics B: Atomic and Molecular Physics, 1971
- Radiative Lifetime of the B 2Σ+ State of CO+The Journal of Chemical Physics, 1969
- Mesure des durées de vie radiatives de CO+2(A 2IIu), CO+2(B2Σ +u), CH.(A2Δ) et CO(C 1Σ+) par radiolyse pulséeJournal de Physique, 1969
- Transition Probabilities for H2, D2, N2, N2+, and COThe Journal of Chemical Physics, 1966
- The ionization of neutral helium by electron impactProceedings of the Physical Society, 1965
- On theBands of C. Part IPhysical Review B, 1941
- Rotational Analysis of the 2900A Band of CPhysical Review B, 1941