Atiyeh Ebrahimi-Khankook
Physics Department, Faculty of Sciences, University of Neyshabur, Neyshabur, Iran,
[ 1 ] - Developing the Adult Male ICRP Phantom and Evaluation the Absorbed Dose Received By Critical Organs in Head and Neck Region during the Radiotherapy of Eye Cancer
Introduction Accurate estimation of the absorbed dose in radiosensitive organs, located away from the target volume during radiotherapy, is one of the main reasons for the development of reference phantoms. The International Commission on Radiological Protection (ICRP) reference phantoms can provide a more realistic view of the human anatomy in comparison with the previously used mathematical p...
[ 2 ] - Development of an Accommodation-Dependent Eye Model and Studying the Effects of Accommodation on Electron and Proton Dose Conversion Coefficients
Introduction International Commission on Radiological Protection (ICRP) has provided a comprehensive discussion on threshold dose for radiation-induced cataract in ICRP publication 116. Accordingly, various parts of the eye lens have different radio-sensitivities. Recently, some studies have been performed to develop a realistic eye model with the aim of providing accurate estimation of fluence...
[ 3 ] - Evaluation of polyurethane composite shields effect on reducing the risk of cataract induction at head CT scan
Head computed tomography is a common diagnostic examination, which may cause lenticular opacity and cataracts. Cataract induction is one of the non-stochastic effects of radiation, that happens at threshold dose of 0.5 Gy. Recent studies illustrate that only irradiation to the sensitive (germinative) zone of the lens is a prerequisite to cataract development. Recently, the dose values absorbed ...
[ 4 ] - Studying dose equivalents of radio-sensitive organs in head and neck region during nasopharynx proton therapy using Monte Carlo MCNPX code
In the present work, dose equivalents of radiosensitive organs in head and neck region have been calculated during nasopharynx proton therapy. For this purpose, a middle-size tumor was designed with the use of clinical information, and was then incorporated into the adult male ICRP phantom. According to the medical data, eight radiation paths around the neck were selected. After that, appropria...