Electron photodetachment from H. The electron affinity of HS
- 1 April 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 23 (4) , 1673-1678
- https://doi.org/10.1103/physreva.23.1673
Abstract
The cross section for electron photodetachment from H has been measured using an ion cyclotron resonance (ICR) spectrometer with a tunable dye laser. A cubic spline routine is employed to remove random noise from the spectrum and allows the observation of rotational effects. The structure in the spectrum is explained in terms of a model which includes the interaction of the spin, orbital, and rotational angular momenta in HS. Comparison of the theoretically constructed photodetachment cross section predicted by this model with the experimental spectrum leads to an electron affinity for HS of 2.314±0.003 eV and an estimate of the rotational temperature of the H ions in the ICR cell.
Keywords
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