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Dose Simulation in Different Body Parts in Radiotherapy Using Fluka Monte Carlo Code on Human Phantom and Benchmarking with TL Dosimetry

Montazam, Mahnaz | 2011

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 42026 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Sohrabpour, Mostafa; Mahdavi, Rabi
  7. Abstract:
  8. Radiation therapy is a treatment modality that is used in treatment of most newly diagnosed cancer patients. In this method the interaction of radiation with matter and their biological effects is used for cancer treatment. The energy and intensity of the radiation in radiotherapy should be considered in order to have a lethal effect on tumors. Linear accelerators are substitutes for previous methods of radiotherapy in all over the world. These machines can work in both electron and photon mode. The Monte Carlo technique has become ubiquitous in medical physics in the last 50 years. The range of applications is very broad in medical physics. The increased use of Monte Carlo techniques is partially due to the massive increases in computing power per unit cost in the last five decades and partially due to the increasing availability of many powerful software tools. Simulating the head of the linear accelerator is one of the important subjects, because measuring the different parameters is expensive and sometime impossible. The physicists have tried to survey the parameters by numerical methods. The FLUKA code is one of the new multi-purpose codes which is used in this project for simulation of the head of the Varian clinic 2100 C/D accelerator, a water phantom and human body phantom in order to using in dosimetry calculations and compare the results with experimental measurements. The results of the project shows that the FLUKA code is capable of transporting variety of particles specially electron and photon in different energies and it also has the ability to simulate the head of the linear accelerators, human body phantom and survey the effect of different parts in the quantity of external beam. It also has the ability to do dosimetry simulation which can be used in treatment planning and radiotherapy.
  9. Keywords:
  10. Equivalent-Man Phantom ; Monte Carlo Method ; Radiotherapy ; FLUKA Code ; Varian Accelerator ; Dosimetry Calculations

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