TITLE:
To Determine Dose Response Curves of Dyed Polyvinyl Alcohol Films Irradiated with Gamma-Rays
AUTHORS:
Vo Thi Anh, Tran Dai Nghiep, Trinh Van Giap
KEYWORDS:
Dyed Thin Film, Dose Response Curves, Optical Density, Methylene Blue, Methyl Orange, Methyl Red and Crystal Violet
JOURNAL NAME:
Open Journal of Safety Science and Technology,
Vol.8 No.1,
March
20,
2018
ABSTRACT: The Polyvinyl Alcohol (PVA) films dyed with different colors such as methylene blue (MB), methyl orange (MO), methyl red (MR) and crystal violet (CV) were investigated. The dyed PVA films were irradiated by with Co60 γ-source in dose range of 1 - 150 kGy. The optical density change in these films at pre and post irradiation was studied by spectrophotometer. The gamma dose response curves of the dyed PVA films were described by saturated exponential function of the energy transfer model with high correlative coefficient. The color sensitivities on the dyed PVA films irradiated by source were different. The PVA films dyed with MB had the highest sensitivity.