The success of the UV technology is based on the perfect coordination between the radiation properties of the UV source and the specific requirements of the UV application. Both, in UV curing as well as in the area of water treatment, substrate or liquid radiation is highly dependent on the spatial dispersion of UV light in the irradiated area or volume through which the substrate or liquid passes.
The UV energy (UV dose) is therefore determined by the geometric characteristics of the reactor and the optical properties of the reflector and/or the UV transmission of the liquid. A typical feature is the linear connection between an increase in the speed of a process and the resulting UV energy demand. In the case of UV modulation, the energy additionally depends on the moment the substrate passes the lamp.