Radiative lifetime measurement of the,,,, andexcited states of helium
- 1 August 1978
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 18 (2), 559-570
- https://doi.org/10.1103/physreva.18.559
Abstract
The lifetimes of the , , , , and , states of He have been determined experimentally to be 54.5±0.8, 16.7±0.8, 36.4±1.2, 67±10, and 142±20 nesc, respectively. The measurements were made at several incident electron energies using a pulsed-electron time-delayed-coincidence technique.
Keywords
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