Measurement of Phototherapeutic Light Sources

Phototherapeutic irradiance and irradiance dose are measured in radiometric quantities within specified wavelength ranges as in UV-A and UV-B or at spectral lines like 311 nm for narrow band TL-01 UVB sources.

Lightmeters designed with a spectral sensitivity tailored to a specific phototherapeutic action spectra directly measure actinic irradiance and dose applied in the therapy.