spectral distribution

https://doi.org/10.1351/goldbook.S05813
The variation of the spectral radiance with wavelength.
Source:
PAC, 1988, 60, 1449. 'Nomenclature, symbols, units and their usage in spectrochemical analysis - VII. Molecular absorption spectroscopy, ultraviolet and visible (UV/VIS) (Recommendations 1988)' on page 1453 (https://doi.org/10.1351/pac198860091449)