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.
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