title: Electron storage ring BESSY as a radiometric source of calculable spectral radiant power between 0.5 and 1000 nm.
abstract: The spectral radiant power of the electron storage ring BESSY was measured absolutely in the infrared and visible, and its angular distribution in the infrared, visible, and soft-x-ray ranges. The results prove BESSY to be a standard of calculable spectral radiant power, at least for wavelengths from 0.5 to 1000 nm.
authors.affiliation: Physikalisch-Technische Bundesanstalt, Institut Berlin, Abbestrasse 2-12, D-1000 Berlin 10, Federal Republic of Germany.
authors.forename: F
authors.initials: F
authors.lastname: Riehle
authors.forename: B
authors.initials: B
authors.lastname: Wende