Affiliations: [a] Magnetic Resonance Imaging Room, Henan Province Hospital of Traditional Chinese Medicine, Zhengzhou, China
| [b] Department of Anesthesia Techniques, Al-Noor University College, Nineveh, Iraq
| [c] Facultad de Mecánica, Escuela Superior Politécnica de Chimborazo (ESPOCH), Riobamba, Ecuador
| [d] Facultad de Ciencias, Escuela Superior Politécnica de Chimborazo (ESPOCH), Sede Orellana, El Coca, Ecuador
| [e] Medical Technical College, Al-Farahidi University, Baghdad, Iraq
| [f] Department of Pharmacy, Al-Zahrawi University College, Karbala, Iraq
Correspondence:
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Corresponding author: Shaima Haithem Zaki, Department of Anesthesia Techniques, Al-Noor University College, Nineveh, Iraq. E-mails: shaima.haithem@alnoor.edu.iq.
Abstract: OBJECTIVE:It seems that dose rate (DR) and photon beam energy (PBE) may influence the sensitivity and response of polymer gel dosimeters. In the current project, the sensitivity and response dependence of optimized PASSAG gel dosimeter (OPGD) on DR and PBE were assessed. MATERIALS AND METHODS:We fabricated the OPGD and the gel samples were irradiated with various DRs and PBEs. Then, the sensitivity and response (R2) of OPGD were obtained by MRI at various doses and post-irradiation times. RESULTS:Our analysis showed that the sensitivity and response of OPGD are not affected by the evaluated DRs and PBEs. It was also found that the dose resolution values of OPGD ranged from 9 to 33 cGy and 12 to 34 cGy for the evaluated DRs and PBEs, respectively. Additionally, the data demonstrated that the sensitivity and response dependence of OPGD on DR and PBE do not vary over various times after the irradiation. CONCLUSIONS:The findings of this research project revealed that the sensitivity and response dependence of OPGD are independent of DR and PBE.
Keywords: Dose rate, optimized PASSAG, magnetic resonance imaging, photon beam energy, polymer gel dosimeter
