Optical radiation and the quantities used for this and for actinic radiation are defined. The actinic spectra and methods for their measurement are treated. The methods of measurement of actinic radiation are mentioned and possibilities for the characterization and evaluation of radiometers for the measurement of actinic radiation are reported.
"Actinic radiation and its principles of measurements", Proc. SPIE 10305, Dosimetry of Laser Radiation in Medicine and Biology, 1030508 (10 January 1989); doi: 10.1117/12.2283589; https://doi.org/10.1117/12.2283589