نتایج جستجو برای: x ray radiography

تعداد نتایج: 674380  

Journal: :Journal of Japan Institute of Light Metals 1954

Journal: :Health physics 2008
Vernon E Shockley Ronald L Kathren Elyse M Thomas

Many nuclear weapons complex workers were required to undergo medical x-ray examinations as a condition of their employment. To ensure that their dose reconstructions are complete, it is necessary to include the contributions from these examinations. X-ray procedures that must be evaluated include: (1) posterior-anterior and lateral radiography, and/or photofluorography, of the chest; (2) anter...

Journal: :Scilight 2023

Flash X-ray radiography provides insights into additively manufactured high explosives and the complex wave interactions that can result.

ذبیح‌زاده, منصور, شمس, نسیم, غلامی, مهرداد, کرمی, وحید,

Background: Anode heel effect refers to reduction of radiation intensity in the anode side of X-ray tube. This variation in radiation intensity across the anode-cathode of X-ray tube can be benefited for decrease radiation exposure in some radiological examinations. The aim of this study was to evaluate the effect of anode heel orientation on the radiation dose received by the testes in male pa...

A. Kavousi, A. Shareghi, F. Nazeri, H. Mozdarani, M. Ghiassi-Nejad, M. Jafari-Zadeh, S.M.J. Mortazavi,

Background: Intraoral radiographies are the most frequent X-ray examinations in humans. According to International Commission on Radiation Protection (ICRP) recommendations, the selection of a diagnostic reference level (DRL) should be specific to a country or region. Critica l organs such as thyroid gland are exposed to X-rays in intraoral radiography and these exposures should be kept as low ...

Journal: :international journal of pediatrics 0
akbar molaie assistant professor of pediatric cardiology,pediatric health research center, tabriz university of medical sciences,tabriz, iran. babak abdinia pdiatric health resarch center,department of pediatrics, faculty of medicine, tabriz university of medical sciences, tabriz, iran roya zakeri pediatrician, tabriz university of medical sciences, tabriz, iran. ali talei faculty of medicine, tabriz university of medical sciences, tabriz, iran

background and objective: chest x-ray is usually the first radiography performed for a newborn. this test is easily accessible and yet a basic screening method. different results have been reported in various studies regarding the diagnostic value of chest x-ray in cardiovascular disease in children. materials and methods: the study was carried out retrospectively using the medical files of 100...

Journal: :Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment 2014
Matthieu N Boone Jan Garrevoet Pieter Tack Oliver Scharf David P Cormode Denis Van Loo Elin Pauwels Manuel Dierick Laszlo Vincze Luc Van Hoorebeke

High resolution X-ray radiography and computed tomography are excellent techniques for non-destructive characterization of an object under investigation at a spatial resolution in the micrometer range. However, as the image contrast depends on both chemical composition and material density, no chemical information is obtained from this data. Furthermore, lab-based measurements are affected by t...

2011
Veronique REBUFFEL Jean RINKEL Joachim TABARY Loick VERGER

Conventional explosive detection systems (EDS) based on X-ray technologies are using dual-energy radiography; they provide only a crude material characterization. Recently emerged semiconductors based X-ray detectors offer new capabilities in energy discrimination. This study is aiming at evaluating their interest for EDS. LETI-LDET laboratory has developed several pixellated CdTe/CZT detectors...

2000
L. K. Wagner Doracy P. Fontenla Carolyn Kimme-Smith Lawrence N. Rothenberg Jeff Shepard John M. Boone

DISCLAIMER: This publication is based on sources and information believed to be reliable, but the AAPM and the editors disclaim any warranty or liability based on or relating to the contents of this publication. The AAPM does not endorse any products, manufacturers, or suppliers. Nothing in this publication should be interpreted as implying such endorsement. Task Group 6 of the Diagnostic X-Ray...

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