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year 27, Issue 2 (ICOP & ICPET 2021 2021)
ICOP & ICPET _ INPC _ ICOFS 2021, 27(2): 440-444 |
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Salimi Meidanshahi S, Beigzadeh A M, Rashidian Vaziri M R, Shahshahani F. Investigating the effect of temperature variations on opto-thermal parameter of tissue-equivalent material in ionizing beam dosimetry. ICOP & ICPET _ INPC _ ICOFS 2021; 27 (2) :440-444
URL: http://opsi.ir/article-1-2398-en.html
URL: http://opsi.ir/article-1-2398-en.html
Sahar Salimi Meidanshahi1 
, Amir Mohammad Beigzadeh2 , Mohammad Reza Rashidian Vaziri *3 , Fatemeh Shahshahani1
, Amir Mohammad Beigzadeh2 , Mohammad Reza Rashidian Vaziri *3 , Fatemeh Shahshahani1
1- Department of Physics, Alzahra University, Tehran, Iran
2- Radiation Application Research School, Nuclear Science and Technology Research Institute, Tehran
3- Photonics and Quantum Technologies Research School, Nuclear Science and Technology Research Institute, Tehran
2- Radiation Application Research School, Nuclear Science and Technology Research Institute, Tehran
3- Photonics and Quantum Technologies Research School, Nuclear Science and Technology Research Institute, Tehran
Abstract: (842 Views)
In this experimental work, the opto-thermal parameter of the tissue equivalent material in the dosimetry of ionizing radiation (water) has been measured. Nowadays, ionizing beams, where one of them is electron particles, are widely used in cancer radiotherapy, irradiation of materials with the aim of sterilizing medical equipments, changing the properties of materials and polymers to improve their quality, irradiating foods to increase their shelf life in warehouses and elimination, and etc. In case of radiation therapy, the water is often used as a suitable phantom to measure the distribution of electron absorption doses in patients' bodies. To make optical dosimeters, knowing the value of the opto-thermal parameter is a basic principle that these types of dosimeters are known as interferometric calorimeters. In this work, using the Mach-Zander interferometer and the solution of the required theoretical relations, the thermo-optical parameter is measured in the large temperature range of 34 to 76 degrees Celsius
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