NIST Atomic Spectroscopic Database

Fuhr, J. R., Martin, W. C., Musgrove, A., Sugar, J., and Wiese, W. L., NIST Atomic Spectroscopic Database ver. 1.1, January 1996. NIST Physical Reference Data, National Institute of Standards and Technology, Gaithersburg, MD. Available at the WWW address http //physics.nist.gov/PhysRefData/contents.html... 

Welcome to ihe NIST Atomic Spectra Database. NIST Standard Reference Database 478. The spectroscopic data may be selected and displayed according to wavelengths or energy levels by choosing one of the following options ... 

The spectroscopically determined energy levels for atoms with atomic number less than 90 are given in the tables of C. E. Moore and others C. E. Moore, Atomic Energy Levels, National Bureau of Standards Circular 467, vols. I, II, and III, 1949, 1952, and 1958, Washington D.C. these have been reprinted as Nad. Bur. Stand. Publ. NSRDS-NBS 35, 1971 W. C. Martin et al.. Atomic Energy Levels—The Rare-Earth Elements, Natl. Bur. Stand. Publ. NSRDS-NBS 60, Washington, D.C., 1978. The atomic-energy-level data in Moore s tables and subsequent revisions are available online at the NIST Atomic Spectra Database at www.nist.gov/pml/data/asd.cfm. 

---