| Assessment of the strength of individual 192Ir seeds in ribbons. | |
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MedLine Citation:
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PMID: 10587235 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Assessing the strength of individual seed-type sources in ribbon assembles remains a challenge in brachytherapy quality assurance. Geometries to measure a single source in the ribbon usually fail because of low signals if using very thick shielding to block the radiation from the other sources, or contributions from all the other sources if they are not shielded well. A normal well-type chamber with partial lead shielding forming a small slot provides a differential response along the chamber axis that, through a deconvolution/simultaneous-equations technique, sorts the contributions from each source, allowing the derivation of each source's strength. |
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Authors:
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B Thomadsen; L DeWerd; T McNutt; S DeWerd; D Schmidt |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Medical physics Volume: 26 ISSN: 0094-2405 ISO Abbreviation: Med Phys Publication Date: 1999 Nov |
Date Detail:
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Created Date: 1999-12-17 Completed Date: 1999-12-17 Revised Date: 2000-12-18 |
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: 2471-5 Citation Subset: IM |
Affiliation:
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Department of Medical Physics, University of Wisconsin, Madison 53706, USA. brthomad@facstaff.wisc.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Brachytherapy
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instrumentation*,
standards Calibration Iridium Radioisotopes / therapeutic use* Models, Theoretical Quality Assurance, Health Care Radiation Protection Radiotherapy Dosage / standards* Reproducibility of Results |
| 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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