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Evaluation of Dose Rate and Photon Energy Dependence of Passag Polymer Gel Dosimeter Publisher



Farhood B1 ; Geraily G1 ; Abtahi SMM2 ; Ghorbani M3 ; Mehdikhani M4
Authors
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Authors Affiliations
  1. 1. Medical Physics and Medical Engineering Department, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, 1417613151, Iran
  2. 2. Physics Department, Imam Khomeini International University, Qazvin, 3414916818, Iran
  3. 3. Biomedical Engineering and Medical Physics Department, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  4. 4. Laleh Hospital, Tehran, Iran

Source: Journal of Radioanalytical and Nuclear Chemistry Published:2018


Abstract

In the current study, dose rate and photon energy dependence of PASSAG gel dosimeter is evaluated by using MRI technique. The gel samples were readies under normal atmospheric conditions and then were irradiated after 24 h with 100, 200, 300, and 400 cGy/min dose rates and photon energies of 6 and 18 MV from a linear accelerator. The results demonstrate that there is no considerable effect of dose rate and photon energy dependence on the R2-dose response and sensitivity of PASSAG gel dosimeter in 0–10 Gy dose range, as there are 0.01–2.80 and 1.46–2.52% difference ranges between the R2 values of the gel samples at four different dose rates and two various photon energies, respectively. © 2018, Akademiai Kiado, Budapest, Hungary.
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