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The effectiveness of poly(allyl diglycol carbonate(CR39) for low-dose solar ultraviolet dosimetry

By Michael M. Sydenham, Michael J. Collins and Lawrence Hirst

Abstract

Abstract Only\ud \ud The suitability of CR-39 (poly[allyl diglycol carbonate]) for low-dose solar UV ocular dosimetry was invetigated and compared with polysulfone film. the CR-39 was sourced from two suppliers and cut into indicidual dosimeters and contact lenses. All CR-39 and polysulfone dosimeters were exposed to sunlight (0-9 minimal erthemal dose). After exposure, CR-39 dosimeters were quantified by spectrophotometric transmittance measurements at 400 nm and 720 nm. Post-exposed polysulfone dosimeters were analyzed for change in absorbance by spectrophotometry at 330 nm. The CR-39, in the form of individual dosimeters and as contact lenses, was not capable of accurate dose assessment for the dose range considered. On the other hand, polysulfone was found to be a reliable sodimeter over the same dose range

Topics: 111300 OPTOMETRY AND OPHTHALMOLOGY
Publisher: American Society for Photobiology
Year: 1994
OAI identifier: oai:eprints.qut.edu.au:910
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