نتایج جستجو برای: radiation systems

تعداد نتایج: 1402818  

Journal: :Bitlis Eren University Journal of Science and Technology 2016

ژورنال: سنجش و ایمنی پرتو 2015

The usage of digital radiology systems with insufficient quality control of digital image detectors can efface inherent superiorities of digital systems in comparison with analogue radiology systems and even makes an increased level of patients’ radiation doses. Modulation transfer function (MTF) is one of the most important parameters related to image quality and digital detectors efficiency. ...

2002
A. Fernandez Fernandez M. Coeck S. Coenen F. Berghmans M. Decréton

Predicting the response of components or systems exposed to ionising radiation is often very difficult. Reliable radiation tolerance estimates therefore typically rely on extended radiation experiments. SCK·CEN, the Belgian Nuclear Research Center, is operating different gamma irradiation facilities, with wide gamma dose rates ranging from 0.1 Gy/h up to 50 kGy/h and with environmental control ...

Journal: :iranian journal of radiation research 0
k. choi department of basic medical science, jeonju university, jeonju, republic of korea t.j. han department of radiological science, jeonju university, jeonju, republic of korea j.k. cho department of radiological science, jeonju university, jeonju, republic of korea

background: recently, there have been many studies on the harmful effects of radiation and the regulations on radiation safety have been toughened both at the in nation and abroad. this study aims to identify the perceptions and actions taken as to radiation safety, and the degree of knowledge related to radiation held by the radiologists working in large hospitals. materials and methods: the r...

Journal: :Journal of Engineering and Technological Sciences 2018

Journal: :Journal of Cosmology and Astroparticle Physics 2022

Abstract Theories with massive gravitons have peculiarity called the van Dam-Veltman-Zakharov discontinuity in that theory propagator does not go to massless graviton zero mass limit. This results large deviation Newtons law for theories even when vanishes. We test vDVZ single vertex process namely gravitational radiation from a classical source. calculate compact binaries using perturbative Fe...

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