title: Ultraviolet Spectral Irradiance Scale Comparison: 210 nm to 300 nm.
abstract: Comparison of the irradiances from a number of ultraviolet spectral irradiance standards, based on different physical principles, showed agreement to within their combined standard uncertainties as assigned to them by NIST. The wavelength region of the spectral irradiance comparison was from 210 nm to 300 nm. The spectral irradiance sources were: an electron storage ring, 1000 W quartz-halogen lamps, deuterium arc lamps, and a windowless argon miniarc.
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-0001.
authors.forename: Ambler
authors.initials: A
authors.lastname: Thompson
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-0001.
authors.forename: Edward A
authors.initials: EA
authors.lastname: Early
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-0001.
authors.forename: Thomas R
authors.initials: TR
authors.lastname: O'Brian
keywords: irradiance; spectral irradiance; synchrotron radiation; ultraviolet radiometry; ultraviolet standards