Abstract

By use of intensity data from the well-known compilation of Meggers, Corliss, and Scribner (MCS) and the more-accurate oscillator strengths of Wiese, Smith, and Miles for magnesium, calcium, and aluminum, the temperature of the MCS copper arc can be determined to be 6000 K. Demixing effects are minimal for these elements. The revised copper-arc temperature allows more-accurate gf values to be calculated for a variety of elements, although values for transitions originating in high-energy states (E_u > 50 000 cm⁻¹) will still contain significant errors. For the iron and tungsten systems, such errors are substantially less than previously claimed.

© 1975 Optical Society of America

Electron density, temperature, and local thermodynamic equilibrium in low-voltage low-current break arcs: Magnesium

E. O. Degenkolb and J. E. Griffiths
J. Opt. Soc. Am. 67(9) 1235-1240 (1977)

Spectra in the period between copper and bromine produced with the aid of a 4 GW laser

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J. Opt. Soc. Am. 65(6) 623-627 (1975)

Effects of temperature and pressure on the rotatory dispersion of Bi₁₂GeO₂₀

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Determination of areas and temperatures from composite blackbody spectra*

C. Stuart Kelley and James C. Bremer
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Technique for measuring the refractive index and its change with temperature in the infrared*

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J. Opt. Soc. Am. 65(11) 1264-1266 (1975)