The calibration of UV solar simulator used for in vivo determination of the sun protection factor (SPF)

摘要

The sun protection factor (SPF) is a measure of the fraction of sunburn-producing UV rays that reach the skin. A xenon arc solar simulator with appropriate filters has been usually used to produce the required UV radiation for the SPF determination. The measurement accuracy of the SPF is dependent on the spectral characteristics of the UV solar simulator. A typical UV solar simulator used for in vivo determination of the SPF has been measured and evaluated. The experiment results indicate that both of its UVA+B and UVA spectrums fall within the acceptance limits.