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has been cited by the following article:

• TITLE: Toluidine Blue O-Gelatin Gel Dosimeter for Radiation Processing

  AUTHORS: S. M. Gafar, M. A. El-Kelany, M. A. El-Ahdal, S. R. El-Shawadfy

  KEYWORDS: Gel, Toluidine Blue O, Dosimeter, γ Rays and Low Dose

  JOURNAL NAME: Open Journal of Polymer Chemistry, Vol.4 No.3, August 14, 2014

  ABSTRACT: In this study the spectrophotometric response of the Toluidine Blue O (TBO)-gelatin gel dosimeter irradiated with gamma rays was characterized. Preparation of dyed-gelatin gel takes place in neutral medium; to give eventually gel dosimeter has a sharp absorbance peak at 635 nm that bleaches quantitatively upon irradiation and the colour change can be measured with UV-VIS spectrophotometer. The useful dose range was 1 - 150 Gy. The radiation chemical yield (G-value) of gel dosimeter was calculated and found to increase by increasing concentration of dye. Post-irradiation storage on the response of gel is discussed. The dose response function, radiation sensitivity, and dependences of the response on environmental factors were studied.