A set of deuterium lamps is calibrated as spectral irradiance standards in the 200–350-nm spectral region utilizing both a high accuracy tungsten spectral irradiance standard and a newly developed argon mini-arc spectral radiance standard. The method which enables a transfer from a spectral radiance to a spectral irradiance standard is described. The following characteristics of the deuterium lamp irradiance standard are determined: sensitivity to alignment; dependence on input power and solid angle; reproducibility; and stability. The absolute spectral radiance is also measured in the 167–330-nm region. Based upon these measurements, values of the spectral irradiance below 200 nm are obtained through extrapolation.
R. D. Saunders, W. R. Ott, and J. M. Bridges, "Spectral irradiance standard for the ultraviolet: the deuterium lamp," Appl. Opt. 17, 593-600 (1978)