Abstract
Radiation dose vs. radiation intensity: Standardized lamps are used to provoke erythemal reactions in skin as required for SPF determination (Surber et al., 2021). For practical-experimental reasons, duration of irradiation is substantially reduced compared with the duration of irradiation in a consumers' everyday life. Concomitantly, radiation intensity is substantially increased to yield a comparable radiation dose. With current methods, it is assumed that specific erythemal reactions are dependent only on radiation dose and not on the rate at which energy is administered. Some experiments supported this assumption with human data for time periods from 1 second to 1 hour (Meanwell and Diffey, 1989). However, other studies describe a «reciprocity failures» (Iida et al., 2016). The extent to which this applies to the SPF determination has not yet been investigated.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
