| Summary: | The present paper proposed to use Gafchromic EBT3 films covered with 2, 4 and 6 polypropylene-film barriers for long-term monitoring of solar UV radiation. The usable range for the films with 2 barriers was from ∼4 to ∼40 Jcm−2, that for the films with 4 barriers was from ∼20 to ∼200 Jcm−2, and that for the films with 6 barriers was from ∼100 to ∼600 Jcm−2. As such, using films with 4 and 6 barriers could extend the usable range up to 200 and 600 Jcm−2, respectively, which would be useful for consecutive 4-d and 12-d UV exposure measurements, respectively (considering a possible maximum UV exposure of 50 Jcm−2 per day). Keywords: Radiochromic film, EBT3 film, Ultraviolet exposures
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