نتایج جستجو برای: dose rate
تعداد نتایج: 1226890 فیلتر نتایج به سال:
background: best dose distribution in target volume and control of organ at risk (oar) dose are the two main goals in brachytherapy. materials and methods: in this study in vivo dosimetry in 4 rectal points was performed by transillumination dosimeter (tld) s and the measured doses were compared in different patients. one point was reported to have the maximum dose in each patient and the very ...
introduction interaluminal brachytherapy is one of the important methods of esophageal cancer treatment. the effect of applicator attenuation is not considered in dose calculation method released by aapm-tg43. in this study, the effect of high-dose rate (hdr) brachytherapy esophageal applicator on dose distribution was surveyed in hdr brachytherapy. materials and methods a cylindrical pmma phan...
Introduction: Background radiation is originated from environmental radioactive sources cosmicandterrestrial.Materials distribution onsurface of the earth and height from sea level are not the same at various points.Absorbed dose caused by them were different at various points.In this research, Background radiation level inoutdoor different areas of Ilam province was measured and effective dose...
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