Accession Number : ADD095100

Title :   Atomic Transition Probabilities for Vanadium, Chromium, and Manganese (A Critical Data Compilation of Allowed Lines),

Corporate Author : NATIONAL STANDARD REFERENCE DATA SYSTEM

Personal Author(s) : Younger, S M ; Fuhr, J R ; Martin, G A ; Wiese, W L

Report Date : Jan 1978

Pagination or Media Count : 139

Abstract : Atomic transition probabilities for about 2700 spectral lines of the elements vanadium, chromium, and manganese through all stages of ionization have been critically evaluated and compiled. All available literature sources have been utilized. Systematic trends along isoelectronic sequences have been extensively exploited to predict oscillator strengths (f-values) whenever no data were available in the literature. The data are presented in separate tables for each element and stage of ionization and are arranged according to multiples and, when appropriate, also to transition arrays and increasing quantum numbers. For each line, the transition probability for spontaneous emission, the absorption oscillator strength, and the line strength are given, along with the spectroscopic designation, the wavelength, the statistical weights, and the energy levels (when available) of the upper and lower atomic states. In addition, the estimated accuracy and the literature reference are indicated. In short introductions, which precede the tables for each spectrum, the main justifications for the choice of the adopted data and for the accuracy rating are discussed. A general introduction contains some more details on our evaluation procedure. (Author)

Descriptors :   *SPECTRAL LINES, *TRANSITIONS, *PROBABILITY, *ABSORPTION SPECTRA, *QUANTUM STATISTICS, VANADIUM, CHROMIUM, ATOMS, TABLES(DATA), TABULATION PROCESSES, MANGANESE, LITERATURE SURVEYS, IONIZATION, TEST AND EVALUATION, OSCILLATORS, FREQUENCY, ATOMIC ENERGY LEVELS, VALUE

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE