نتایج جستجو برای: high dose rate
تعداد نتایج: 2964420 فیلتر نتایج به سال:
introduction: all of the people worldwide are exposed to low levels of radiation. cancer induction and genetic disorders are among the hazards of low level exposure. in some cases, radiation close to hot springs is higher than normal areas due to a high concentration and the decay products of ra-226. given the use of hot springs by the general public because of their therapeutic p...
Background: This study aims to calculate the air-kerma strength (SK), the dose rate constant (∧) and the dose rate profiles of a Gammamed 12i Ir-192 source by using the Monte Carlo technique and to compare the dose rate values with those calculated by the Abacus HDR treatment planning system (TPS). Materials and Methods: Air-kerma strength (in units of U; 1 U= μGy m2 h-1) and the dose ra...
background: the formalism recommended by task group 60 (tg-60) of the american association of physicists in medicine (aapm) is applicable for β sources. radioactive biocompatible and biodegradable 153sm glass seed without encapsulation is a β- emitter with a short half life and delivers a high dose rate to the tumor in the millimeter range. in this work the dosimetry parameters of the seed for ...
High-dose-rate brachytherapy for high-grade vaginal intraepithelial neoplasia: a dosimetric analysis
background: this study was performed to compare the effects of low dose interferon beta-1 (ifn-β-1) (cinnovex, 30 mcg) and high dose ifn-β-1 (rebif, 44 mcg) on the reduction of the number and size of plaques in magnetic resonance imaging (mri) in patients with multiple sclerosis (ms). methods: this historical cohort study, which was performed in 2014 in sanandaj (western part of iran). 43 ms pa...
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