A. Thompson et al., ULTRAVIOLET SPECTRAL IRRADIANCE SCALE COMPARISON - 210 NM TO 300 NM, Journal of research of the National Institute of Standards and Technology, 103(1), 1998, pp. 1-13
Comparison of the irradiances from a number of ultraviolet spectral ir
radiance standards, based on different physical principles, showed agr
eement to within their combined standard uncertainties as assigned to
them by NIST. The wavelength region of the spectral irradiance compari
son was from 210 nm to 300 nm. The spectral irradiance sources were: a
n electron storage ring, 1000 W quartz-halogen lamps, deuterium are la
mps, and a windowless argon miniarc.