Silver nitrate based gel dosimeter

9th International Conference on 3D Radiation Dosimetry

Titus, D.^1 ; Samuel, E.J.J.^1 ; Srinivasan, K.^1 ; Roopan, S.M.^2 ; Madhu, C.S.^3

Department of Physics, School of Advanced Sciences, VIT University, Vellore, India^1

Department of Chemistry, School of Advanced Sciences, VIT University, Vellore, India^2

Department of Oncology, Prathyasa MJKM Cancer Center, Cherthala, Kerala, India^3

关键词: Absorbance peak;    Dose range;    Dose-response functions;    Gel dosimeter;    Radiation-induced;    Silver nitrates;    UV-Visible spectra;    UV-visible spectrophotometry;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/847/1/012066/pdf
DOI  :  10.1088/1742-6596/847/1/012066

来源: IOP

【 摘 要 】

A new radiochromic gel dosimeter based on silver nitrate and a normoxic gel dosimeter was investigated using UV-Visible spectrophotometry in the clinical dose range. Gamma radiation induced the synthesis of silver nanoparticles in the gel and is confirmed from the UV-Visible spectrum which shows an absorbance peak at around 450 nm. The dose response function of the dosimeter is found to be linear upto12Gy. In addition, the gel samples were found to be stable which were kept under refrigeration.