Accession Number : ADD095012

Title :   Energy Levels of Neutral Helium (4HeI),

Corporate Author : NATIONAL STANDARD REFERENCE DATA SYSTEM

Personal Author(s) : Martin,W C

Report Date : Jan 1973

Pagination or Media Count : 13

Abstract : Experimental and theoretical knowledge of the energy levels of HeI has been significantly improved and extended during the past decade or so. The most comprehensive earlier table of levels, published in 1960 (1)1, has thus become obsolete for several purposes of current interest. This paper gives a new compilation of the levels based on the most accurate measurements now available. With few exceptions the references are limited to results that entered into the determination of the new or revised levels or designations. (Author)

Descriptors :   *Atomic energy levels, *Atomic spectra, *Helium, Absorption spectra, Ionization, Automatic, Photoionization, Resonance, Photons, Electron scattering

Distribution Statement : APPROVED FOR PUBLIC RELEASE