| Monte Carlo studies of x-ray scattering in transmission diagnostic radiology. | |
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MedLine Citation:
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PMID: 3736507 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Monte Carlo methods have been used to simulate the scattering of x rays in polystyrene and water phantoms. In particular, the ratio of the scattered to total x-ray fluence (scatter fraction) has been calculated for monoenergetic x-ray beams in the energy region relevant to diagnostic radiology and nuclear medicine (30-660 keV). Simulations have been made for representative values of the pertinent geometrical factors; phantom thickness from 5 to 21 cm, x-ray beam diameters of 10 and 25 cm, and scatterer-to-image-plane separations from 0 to 20 cm. As a function of x-ray energy, the scatter fraction was found to vary slowly between 30 and 100 keV, and to decrease between 100 and 660 keV. The present results were generated with a special transport code which included the effects of special geometries and the response of the x-ray detector. With the inclusion of these effects, the results resolved inconsistencies and showed good agreement with previous measured and calculated data. |
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Authors:
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G Barnea; C E Dick |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Medical physics Volume: 13 ISSN: 0094-2405 ISO Abbreviation: Med Phys Publication Date: 1986 Jul-Aug |
Date Detail:
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Created Date: 1986-09-17 Completed Date: 1986-09-17 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0425746 Medline TA: Med Phys Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 490-5 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Humans Models, Structural Monte Carlo Method* Operations Research* Polystyrenes Radiography* Scattering, Radiation Technology, Radiologic* Water X-Rays |
| Chemical | |
Reg. No./Substance:
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0/Polystyrenes; 7732-18-5/Water |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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