TY - JOUR T1 - The use of polyvinyl chloride films dyed with methyl red in radiation dosimetry TT - JF - Int-J-Radiat-Res JO - Int-J-Radiat-Res VL - 14 IS - 3 UR - http://ijrr.com/article-1-1771-en.html Y1 - 2016 SP - 263 EP - 267 KW - Polyvinyl chloride KW - gamma radiation KW - methyl red KW - dosimetry. N2 - Background: The purpose of this work was to investigate the use of polyvinyl chloride (PVC) dyed with methyl red as a high dose radiation dosimetry. Materials and Methods: Commercial PVC films from Sabic made from resins PVC57S with thickness of 60 µm and methyl red with a molecular weight of 269.31 were used. Irradiation was carried out using a 60Co γ-ray generator with sources arranged in rectangular holder with a total activity of 73.6926 kCi. Absorbance measurements were made by Jasco V- 630 UV-VIS spectrophotometer. Dose rate and irradiation temperature effects as well as post-irradiation storage in dark and indirect daylight conditions on dosimetry performance were also investigated. Results: The results showed a linear relationship between the relative absorbance (response) and the absorbed dose at the wavelength 548 nm in the range of 0-150 kGy. The response was found to be independent of both dose rate and irradiation temperature. Conclusion: The experimental results indicate that PVC films dyed with methyl red may be used for a high dose radiation dosimetry. M3 10.18869/acadpub.ijrr.14.3.263 ER -