NIST has made a handbook of basic atomic spectroscopic information available at physics.nist.gov/ Handbook. The handbook is designed to provide a selection of the most important and frequently used atomic spectroscopic data in an easily accessible format.
The compilation includes data for the neutral and singly ionized atoms of all elements hydrogen through einsteinium (1 through 99). The wavelengths, intensities, and spectrum assignments are given in a table for each element, and the data for the approximately 12 000 lines of all elements also are collected into a single table, sorted by wavelength (a "finding list"). For the strongest and most persistent lines of each spectrum, the complete energy-level classifications are provided as are the transition probabilities, if available.
Linked data files make finding, identifying, and determining additional information about included transitions very quick and easy. Although the data for some spectra are not as complete as those found in NIST's Atomic Spectra Database (physics.nist.gov/ asd), this compilation includes more recent data for many elements, particularly the heavier ones.
The atomic number and weight are listed for each element, as well as the naturally occurring isotopes and their isotopic mass, abundance, nuclear spin, and magnetic moment. The ground state and the ionization potential for the first and second spectra are given. The handbook also is packaged as zipped HTML files suitable for downloading to electronic books. Directions for downloading are included on the Web site.
CONTACT: Jean Sansonetti, (301) 975-4725; jean. sansonetti@nist.gov or William Martin, (301) 975-3213; william.martin@nist.gov.