Volume 18, Issue 3 (Paramedical Sciences and Military Health (Autumn 2023) 2024)
Paramedical Sciences and Military Health 2024, 18(3): 1-12 |
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Zakariaee S S. Simulation and Investigation of Dosimetric Characteristics of X-RAD 320 Orthovoltage Unit Using Monte Carlo Method. Paramedical Sciences and Military Health 2024; 18 (3) :1-12
URL: http://jps.ajaums.ac.ir/article-1-391-en.html
URL: http://jps.ajaums.ac.ir/article-1-391-en.html
Department of Medical Physics, Faculty of Paramedicine, Ilam University of Medical Sciences, Ilam, Iran & Student Research Committee, Ilam University of Medical Sciences, Ilam, Iran Abstract , salman_zakariaee@yahoo.com
Abstract: (689 Views)
Introduction: X-RAD320 irradiator is one of the radiobiological research units. This unit is used to irradiate animals and cell cultures. The dosimetric properties of an irradiator unit play an important role in radiobiological investigations. Therefore, the operation characteristics of the irradiator units must be precisely evaluated. Experimental measurements sometimes need special types of equipment which are too time-consuming and costly. Therefore, theoretical calculations are the best solutions. In this study, the X-RAD320 orthovoltage unit was simulated by the Monte Carlo (MC) method and dosimetric characteristics of its beam filtrations (F1: HVL=1.0mm Cu/ F2: HVL=4.0mm Cu) were investigated.
Methods and Materials: For each energy beam, the percentage depth dose (PDD) and beam profile functions were calculated at different depths of the water phantom. The statistical uncertainties for all calculations were less than 2%. Beam spectrums calculated by the MC method and SpekCalc software were compared to validate the MC modeling of the X-RAD320 unit.
Results: For both energy beams, photon beam spectra were calculated at source to surface distance (SSD) of 20 cm. MCNPX results were in close agreement with SpekCalc measurements. PDD and Beam profile functions were calculated in the water phantom at SSD of 50 cm and field size of 20×20 cm2. The comparison of the results confirmed that the system was accurately modeled and our model can be used for MC dose calculations.
Discussion and Conclusion: From the results, it could be concluded that the simulated model of the X-RAD320 unit could be used for dosimetry applications, system optimization studies, and etc.
Methods and Materials: For each energy beam, the percentage depth dose (PDD) and beam profile functions were calculated at different depths of the water phantom. The statistical uncertainties for all calculations were less than 2%. Beam spectrums calculated by the MC method and SpekCalc software were compared to validate the MC modeling of the X-RAD320 unit.
Results: For both energy beams, photon beam spectra were calculated at source to surface distance (SSD) of 20 cm. MCNPX results were in close agreement with SpekCalc measurements. PDD and Beam profile functions were calculated in the water phantom at SSD of 50 cm and field size of 20×20 cm2. The comparison of the results confirmed that the system was accurately modeled and our model can be used for MC dose calculations.
Discussion and Conclusion: From the results, it could be concluded that the simulated model of the X-RAD320 unit could be used for dosimetry applications, system optimization studies, and etc.
Keywords: Monte Carlo Simulation, X-RAD320 Irradiator, Orthovoltage Radiation Therapy Unit, SpekCalc Software
Type of Study: Research |
Subject:
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Received: 2024/01/1 | Accepted: 2024/03/13 | Published: 2024/05/21
Received: 2024/01/1 | Accepted: 2024/03/13 | Published: 2024/05/21
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