نتایج جستجو برای: egsnrc
تعداد نتایج: 222 فیلتر نتایج به سال:
To evaluate the amount of energy deposited in radiosensitive organs and tissues human body, when an anthropomorphic phantom is irradiated, researchers numerical dosimetry use so-called exposure computational models (ECMs). One can imagine ECM as a virtual scene composed mathematically defined position relation to radioactive source. The source these ECMs produces initial state simulation: posit...
Purpose Dose calculation of kilovoltage x rays used in Image-Guided Radiotherapy has been investigated recent years using various methods. Among these methods are model-based ones that suffer from inaccuracies high-density materials and at interfaces when the energy range. The main reason for this is use water deposition kernels simplifications employed such as density scaling heterogeneous med...
One of the most common methods used in radiation therapy for the treatment of superficial skin lesions using the ortho-voltage radiation X (the kVp 300), respectively. One of the most important indicators for the treatment of this type of device, the quality of the X-ray output is usually half the thickness of the absorption (HVL) Vanrzhy show photons effective. However, in this study, the coef...
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