AN EVALUATION OF NALIDIXIC ACID FILM AS A UV-A RADIATION DOSIMETER |
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Authors: | N K Gobbs A R Young |
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Institution: | Department of Photobiology. Institute of Dermatology, St. John's Hospital, Homerton Grove. London E9 6BX, UK |
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Abstract: | Nalidixic Acid (NA)* incorporated into a polyvinyl chloride film has recently been proposed as a UV-A radiation dosimeter. A trial, in which two different batches of NA film were exposed to both solar simulating and monochromatic 330 nm radiation is described. With both batches of film a linear relationship was observed between the UV-A fluence derived from the NA film and the fiuence determined with conventional electronic radiometric equipment. There was, however, considerable batch variation in response to UV-A radiation. Corrections may be made for batch differences. If the batch response can be standardized, our results would support the use of NA film as a simple routine method of measuring UV-A radiation. |
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