Abstract
This study was aimed to determine the dosimetry characteristics of the EBT3 film on a small field electron beam. The experiments were conducted using Linac Synergy-Platform with 6, 8, 10, 12, and 15 MeV. EBT3 films were cut into 3.2×2.5 cm2 in size and were irradiated with varied dose of 0 to 500 cGy on 1×1, 2×2, 3×3, 5×5, 8×8 and 10×10 cm2 radiation field sizes. The irradiated film was scanned using Epson Perfection V700 flatbed scanner to evaluate the pixel value. Then, the calibration curve was generated from netOD and given a dose. The uncertainty and sensitivity of the EBT3 film were evaluated using in-house and Image-J software to check the consistency of the result. The results showed that the largest uncertainty of characteristics curve was 4.6% at 1×1 cm2. Whereas the sensitivity value tends to be identical for radiation dose greater than 100 cGy for all energy, it depends on energy for radiation dose less than 100 cGy.
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