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Response overshoot: a challenge for the application of polymer gel dosimeters

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Abstract

In this research response overshoots of the half irradiated PAGAT polymer gel dosimeter at variations post irradiation times were traced out. Results showed that 5 h after irradiation the measured dose by polymer gel dosimeter in boundary region are compatible with delivered dose. However, more elapsed time post irradiation caused misevaluation of dose. It was observed that response overshoot caused a maximum error of 28% in dose evaluation. It was concluded that more care is necessary when a high gradient dose distribution is evaluated by means of a polymer gel dosimeter.

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Acknowledgements

This study was supported as a research project under Grant Number IKIU-10372 by Imam Khomeini International University, Qazvin, Iran. The author acknowledge the radiology and radiotherapy departments of Shohadae-Tajrish hospital, specially Mr. Masud Heidari and Mr. Ali Jabbari, for their kind efforts in gel dosimeters imaging and irradiation.

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  1. Physics Department, Imam Khomeini International University, Imam Khomeini Blvd, Qazvin, 3414896818, Iran

    Seyed Mohammad Mahdi Abtahi

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Correspondence to Seyed Mohammad Mahdi Abtahi.

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Abtahi, S.M.M. Response overshoot: a challenge for the application of polymer gel dosimeters. J Radioanal Nucl Chem 321, 885–893 (2019). https://doi.org/10.1007/s10967-019-06658-8

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