Abstract
Radiochromic film is tested for its broad-band response to ultraviolet (UV) B(290-320 nm) and A (320 nm-400 nm), visible and infrared radiationproduced by a solar simulator and examined for dosimetry in ultravioletradiation. Results show that MD-55-2 radiochromic film in solar andfluorescent light sources responds almost exclusively to broad-band UVAradiation with negligible colouration from UVB, visible and low level infraredradiation. A second order polynomial function approximates the change inoptical density at 660 nm wavelength for film colouration with exposure to UVAfrom white light fluorescent and solar UV with exposures measured with adedicated UVA dosimeter. Using a double exposure technique as used inradiation dosimetry where the film is firstly irradiated to a known UV dose,radiochromic film can be used as a quantitative measure of UVA exposure.
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