Atlas of the thorium spectrum

Technical Report · Tue Feb 01 04:00:00 EST 1983

OSTI ID:6348879

Palmer, B A ^[1]; Engleman, R Jr ^[1]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The thorium emission spectrum obtained from a hollow cathode discharge using a Fourier transform spectrometer is presented in tables of spectral lines with intensities and classifications, and in plots of the spectrum. The region displayed is from 7400 to 36,000 cm/sup -1/ or from 2777 to 13,500 A. Listed wave numbers are accurate to +-0.002 cm/sup -1/, and listed relative intensities are accurate to +-8%. The accuracy of this atlas makes it useful for wavelength calibration of spectrographs, monochromators, tunable lasers, and laser wavemeters. In addition, this atlas is a guide to the spectrum of thorium and provides a revised energy level list. We present a method to calculate relative oscillator strengths from the intensities given in the tables.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6348879
• Report Number(s): LA-9615; ON: DE83009276
• Country of Publication: United States
• Language: English

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Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ACTINIDES
DATA
DATA COMPILATION
ELEMENTS
EMISSION SPECTRA
ENERGY LEVELS
INFORMATION
METALS
NUMERICAL DATA
SPECTRA
THORIUM