نتایج جستجو برای: radiation processing

تعداد نتایج: 730197  

Journal: :iranian journal of science and technology (sciences) 2008
a. akhavan

in order to improve the performance of a newly developed radiochromic film, gic-79, somedosimetric characteristics of this film have been studied based on relevant standard practice. the presentstudy describes some parameters that may affect the dosimeter response before, during, and after irradiation. the effect of absorbed dose rate on dosimeter response was determined by irradiating dosimete...

Journal: : 2021

A device for measuring the power of laser radiation.has been designed. The consists transmitter and receiving part. includes optical radiation source system collimation radiation. receiver part silicon photodiodes, electronic signal processing unit measurements.

2013
Ruthger Righart Marco Duering Mariya Gonik Eric Jouvent Sonia Reyes Dominique Hervé Hugues Chabriat Martin Dichgans

Slowed processing speed is common in elderly subjects and frequently related to cerebral small vessel disease. Previous studies have demonstrated associations between processing speed and subcortical ischemic lesions as well as cortical alterations but the precise functional-anatomical relationships remain poorly understood. Here we assessed the impact of both cortical and subcortical changes o...

Journal: :iranian journal of medical physics 0
alireza kamali-asl assistant professor, radiation medicine dept., shahid beheshti university, tehran, iran amir-hossein batooli m.sc. student, radiation medicine dept., shahid beheshti university, tehran, iran sanaz harriri m.sc. student, radiation medicine dept., shahid beheshti university, tehran, iran fatemeh salman-rezaee m.sc. student, radiation medicine dept., shahid beheshti university, tehran, iran fatemeh shahmardan m.sc. student, radiation medicine dept., shahid beheshti university, tehran, iran leila yavari m.sc. student, radiation medicine dept., shahid beheshti university, tehran, iran

introduction: intensity modulated radiation therapy (imrt) is one of the cancer treatment methods. it is important to selectively aim at the target in this way, which can be performed using a multileaf collimator (mlc). materials and methods: in order to specifically irradiate the target volume in radiotherapy to reduce the patient absorbed dose, the use of multileaf collimator has been investi...

Journal: :Physical Review Special Topics - Accelerators and Beams 2004

Journal: :Innovative Materials and Technologies in Metallurgy and Mechanical Engineering 2019

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