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monte carlo simulation and experimental determination of tissue phantom ratio for photon beams delivered from medical linear accelerator
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نویسنده
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rasel n m ,purohit s. ,rahman m s ,meaze akm m h ,ali m y
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منبع
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پژوهش فيزيك ايران - 1400 - دوره : 21 - شماره : 3 - صفحه:55 -61
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چکیده
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For an external radiotherapy procedure, the tissue phantom ratio (tpr20,10) is used as a quality index. this work presents an estimate of tpr20,10 using two cylindrical ionization chambers (ne2571 farmer and ptw30013) in three high-energy photon modes (6, 10 and 15 mv) using both the monte carlo (mcnp) process and the experimental setup. the mcnp (version mcnp5) was used for the simulation of photon beams delivered by varian-2300cd for the determination of tpr20,10 according to technical report series (trs) 398. again applying the same protocol tpr20,10 values were measured experimentally with ne2571 farmer and ptw30013 chambers for the same medical linear accelerator (linac). the differences of tpr20, 10 between mcnp and experimental values were found for ne2571 farmer chamber within 4.17 percent, 2.9 percent and 2.5 percent and similarly, these were within 3.89 percent, 2.71 percent and 1.98 percent at 6, 10 and 15 mv respectively for ptw30013. the tpr20,10 values simulated by our calculated mcnp demonstrated strong agreement with our experimental results.
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کلیدواژه
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tissue phantom ratio (tpr) ,trs-398 ,monte carlo simulation
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آدرس
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comilla university, department of physics, bangladesh, university of chittagong, department of physics, bangladesh, bangladesh atomic energy commission, institute of nuclear science & technologyinstitute of nuclear science & technology, bangladesh atomic energyinstitute of nuclear science & technology، bangladesh atomic energyinstitute of nuclear science & technologysecondary standard dosimetry laboratory, secondary standard dosimetry laboratory, bangladesh, university of chittagong, department of physics, bangladesh, university of rajshahi, department of physics, bangladesh
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پست الکترونیکی
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mdyali13@gmail.com
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Monte Carlo Simulation and Experimental Determination of Tissue Phantom Ratio for Photon Beams delivered from Medical Linear Accelerator
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Authors
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Rasel N M ,Purohit S. ,Rahman M S ,Meaze AKM M H ,Ali M Y
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Abstract
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For an external radiotherapy procedure, the tissue phantom ratio (TPR20,10) is used as a quality index. This work presents an estimate of TPR20,10 using two cylindrical ionization chambers (NE2571 Farmer and PTW30013) in three highenergy photon modes (6, 10 and 15 MV) using both the Monte Carlo (MCNP) process and the experimental setup. The MCNP (version MCNP5) was used for the simulation of photon beams delivered by Varian2300CD for the determination of TPR20,10 according to technical report series (TRS) 398. Again applying the same protocol TPR20,10 values were measured experimentally with NE2571 Farmer and PTW30013 chambers for the same medical linear accelerator (LINAC). The differences of TPR20, 10 between MCNP and experimental values were found for NE2571 Farmer chamber within 4.17 percent, 2.9 percent and 2.5 percent and similarly, these were within 3.89 percent, 2.71 percent and 1.98 percent at 6, 10 and 15 MV respectively for PTW30013. The TPR20,10 values simulated by our calculated MCNP demonstrated strong agreement with our experimental results.
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Keywords
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Tissue Phantom Ratio (TPR) ,TRS-398 ,Monte Carlo simulation
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