نتایج جستجو برای: monte carlo nparticle simulation

تعداد نتایج: 602147  

Journal: :iranian journal of medical physics 0
abdolkazem ansarinejad physics and accelerators research school, nuclear science and technology research institute, tehran, iran

introduction use of hadron therapy as an advanced radiotherapy technique is increasing. in this method, secondary particles are produced through primary beam interactions with the beam-transport system and the patient’s body. in this study, monte carlo simulations were employed to determine the dose of produced secondary particles, particularly neutrons during treatment. materials and methods i...

Journal: :journal of paramedical sciences 0
danial seifi makrani department of medical physics, faculty of medical sciences, semnan university of medical sciences, semnan, iran hadi hasanzadeh cancer research center, department of medical physics, semnan university of medical sciences, semnan, iran tayyeb allahverdi pourfallah department of biochemistry and biophysics, faculty of medicine, mazandaran university of medical sciences, sari, iran arash ghasemi department of radiology and radiation oncology, faculty of medicine, mazandaran university of medical sciences, sari, iran majid jadidi department of medical physics, faculty of medical sciences, semnan university of medical sciences, semnan, iran hamed babapour guilan oncology center (goc), rasht, iran

the monte carlo method can be used to describe any technique that approximates solutions to quantitative problems through statistical sampling. this method is considered to be the most accurate method for dose calculation in radiotherapy. for complete modeling of a linear accelerator, it is required that the manufactured information covers all data, but some data such as primary electron energy...

Background and purpose: Radiation therapy make an important contribution in the control and treatment of cancers. Lungs are the main organs at risk in esophageal cancer radiotherapy. Difference between the dose distribution due to the treatment planning system (TPS) and the patient's body dose is dependent on the calculation of the treatment planning system algorithm, which is more pronounced i...

Journal: :Foundations and Trends® in Econometrics 2011

Journal: :Progress of Theoretical Physics Supplement 2005

M. Zehtabian, R. Faghihi, S. Sina,

Background: Iodine brachytherapy sources with low photon energies have been widely used in treating cancerous tumors. Dosimetric parameters of brachytherapy sources should be determined according to AAPM TG-43U1 recommendations before clinical use. Monte Carlo codes are reliable tools in calculation of these parameters for brachytherapy sources. Materials and Methods: Dosimetric param...

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