Electron storage ring BESSY as a radiometric source of calculable spectral radiant power between 0.5 and 1000 nm.
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.
Riehle
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Physikalisch-Technische Bundesanstalt, Institut Berlin, Abbestrasse 2-12, D-1000 Berlin 10, Federal Republic of Germany.
Wende
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