Energy Levels of Neutral Helium (4He I)

1 April 1973

journal article
Published by AIP Publishing in Journal of Physical and Chemical Reference Data

Vol. 2 (2), 257-266
https://doi.org/10.1063/1.3253119

Abstract

This compilation of all identified levels is based on the most accurate available observations. It includes 48 levels above the He II 1²S limit (two‐electron excitation).

Keywords

ATOMIC ENERGY LEVELS
ATOMIC SPECTRA
AUTOIONIZATION
ELECTRON SCATTERING
FINE STRUCTURE
HELIUM
PHOTOIONIZATION RESONANCES
PHOTON ABSORPTION
ELECTRONIC STRUCTURE
POSITIVE IONS
MICROWAVE SPECTRA
VISIBLE SPECTRA
INFRARED SPECTRA
COLLECTIONS OF PHYSICAL DATA

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