| Double-film technique for the determination of the homogeneity of line sources. | |
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MedLine Citation:
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PMID: 8746719 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A new technique is presented for determining the homogeneity of the linear activity. The method uses two x-ray films that are firmly pressed against opposing sides of a needle containing a radioactive line source. The homogeneity of the linear activity of 68 iridium-192 wires has been measured. About 80% of the measured linear activities showed deviations of no more than 5% from the mean; about 20% of the measured linear activities showed deviations of 5%-10% from the mean. Individual wires may contain deviations of 5% or more extended over several centimeters, which causes the dose in the prescription point to deviate 5% from the desired value. Four wires (8%) were rejected for this reason. |
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Authors:
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J P Cuypers; R J de Vos |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Medical physics Volume: 22 ISSN: 0094-2405 ISO Abbreviation: Med Phys Publication Date: 1995 Dec |
Date Detail:
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Created Date: 1996-10-24 Completed Date: 1996-10-24 Revised Date: 2008-11-21 |
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: 2105-9 Citation Subset: IM |
Affiliation:
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Radiotherapy Institute Limburg (RTIL), Heerlen, The Netherlands. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Biophysical Phenomena Biophysics Brachytherapy* Film Dosimetry / instrumentation, methods* Humans Iridium Radioisotopes / therapeutic use Models, Theoretical Reproducibility of Results Technology, Radiologic |
| Chemical | |
Reg. No./Substance:
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0/Iridium Radioisotopes |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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