TL01 and TL12 light sources are widely used in phototherapy applications. The phototherapeutic effective radiation of the TL01 and TL12 source falls within the 240 nm to 340 nm bandpass with peak at 313 nm. The XD-9503 is specially designed to measure the therapeutic effective UV-B and UV-A irradiance of TL01 and TL12 light sources. The detectors spectral sensitivity functions and calibration using TL1 and TL12 light sources ensure accurate readings.
Calibration of the detector UV-A and UV-B effective (W/m²) responsivity is performed by the Gigahertz-Optik GmbH calibration laboratory for optical radiation measurements quantities. As with all light detectors supplied by Gigahertz-Optik calibration of absolute detector responsivity as well as detector individual measured relative spectral responsivity data is included.