| Photon-photon coincidences for activity determination: I-125 and other radionuclides. | |
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MedLine Citation:
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PMID: 16600603 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Theory and experiment of photon-photon coincidence counting with distance variation for activity standardisation of radionuclide solutions are described. The activity of an I-125 solution from an international comparison organised by the BIPM in 2004 was determined. The value obtained agrees with other methods within a limit of 0.2%. The extension of this activity standardisation method to other radionuclides such as Cd-109 with I-125 as a tracer nuclide, In-111, Am-241 and I-124 with a radionuclidic impurity of I-125 is studied. Achieved uncertainties of the activities of Cd-109 and In-111 are of the order of 1.5%. The activity values of sources of Am-241 are determined relative to each other. Am-241 is used for checking the measuring system and as a long-lived reference source. After decay of the order of several I-124 half-lives, sources of I-124 with I-125 are measured to determine the I-125 activity portion. |
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Authors:
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H Schrader |
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Publication Detail:
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Type: Evaluation Studies; Journal Article Date: 2006-04-05 |
Journal Detail:
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Title: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine Volume: 64 ISSN: 0969-8043 ISO Abbreviation: Appl Radiat Isot Publication Date: 2006 Oct-Nov |
Date Detail:
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Created Date: 2006-09-11 Completed Date: 2006-11-28 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9306253 Medline TA: Appl Radiat Isot Country: England |
Other Details:
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Languages: eng Pagination: 1179-85 Citation Subset: IM |
Affiliation:
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Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany. heinrich.schrader@t-online.de |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Algorithms* Guidelines as Topic Internationality Iodine Radioisotopes / analysis* Photons* Radiation Monitoring / methods*, standards* Radioisotopes / analysis* Reference Values Reproducibility of Results Sensitivity and Specificity |
| Chemical | |
Reg. No./Substance:
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0/Iodine Radioisotopes; 0/Radioisotopes |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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