Evaluation and comparison of MAGICA and PAGATA polymer gel dosimeters for nuclear medicine purposes

Document Type : Original Article

Authors

Department of Nuclear Engineering, Lahijan Branch, Islamic Azad University, Lahijan, Iran

Abstract

Calculation of the dose spatial distribution during radiation therapy can help doctors to better treat the cancerous organ and reduce the dose of sensitive organs around it. Tissue equivalent polymer gel dosimeters consist of radiation-sensitive chemicals that are polymerized under irradiation as a function of absorbed dose, and the spatial information of dose distribution can be extracted by imaging the irradiated gel. In this study, using MCNPX Monte Carlo code and ORNL phantom, the received dose of lungs, liver, breast, stomach, spleen, and kidneys were simulated during targeted radionuclide therapy of lung cancer tissue with iodine-131. Then MAGICA and PAGATA gel dosimeters were placed in the target tissues and their received dose were checked again. The results of these simulations show that the received tissue dose of lungs, liver, breast, stomach, spleen, and kidneys are comparable with the results of MAGICA and PAGATA gel dosimeters; therefore, these gel dosimeters can be used in dosimetry studies of treatment with iodine-131 in physical phantoms.

Keywords

References

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