Single exposure phototesting: an adaptation to the CIE erythema action spectrum
2002 (English)In: Proceedings on the 2nd European Medical and Biological Conference, 2002, 964-967 p.Conference paper (Refereed)
In single exposure, divergent beam phototesting, an originally collimated ultraviolet beam is diverged by an optkal lens to give a circular ultraviolet light field with attenuating irradiance towards its periphery. The chromatic aberration, caused by the lens, and its influence on the erythemal effectiveness of the field has been investigated. Spectral measurements (250-400 nm) were performed along the 20 mm radius of the field in steps of 1 mm. The corresponding erythemal effectiveness was calculated after adjustment of the spectral irradiance according to the erythema action spectrum recommended by the Commission Internationale de l' Éclairage (CIE). The erythemal effectiveness of the irradiance field attenuated towards the periphery and stabilized at about 80% of the maximum value at the centre. Knowledge of this is important for dosimetry in skin photobiology and data interpretation. The divergent beam method was used in parallel with the traditional method on three volunteers.
Place, publisher, year, edition, pages
2002. 964-967 p.
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:liu:diva-24527Local ID: 6659OAI: oai:DiVA.org:liu-24527DiVA: diva2:244848
2nd European Medical and Biological Engineering Conference EMBEC'02, Vienna (Austria): Dec. 04 - 08, 2002