EGSnrc calculation of activity calibration factors for the Vinten ionization chamber.
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| Title: | EGSnrc calculation of activity calibration factors for the Vinten ionization chamber. |
|---|---|
| Authors: | Townson, R.1, Tessier, F.1, Galea, R.1 raphael.galea@nrc-cnrc.gc.ca |
| Source: | Applied Radiation & Isotopes. Apr2018, Vol. 134, p100-104. 5p. |
| Subjects: | National Physical Laboratory (Great Britain), Calibration, Ionization chambers, Radioisotopes, Radioactive decay |
| Abstract: | The National Physical Laboratory Vinten 671 chamber was selected as a proving ground for a new radionuclide source model in the EGSnrc software. The computational Vinten model is validated against measurements of radionuclide artifacts whose activities were determined by absolute methods. The response of the Vinten chamber is first calculated as a function of gamma energy, but more strikingly, an explicit simulation of radionuclide decay was implemented and now permits the direct determination of a calibration factor, including additional effects due to all decay paths of the radionuclide. The Monte Carlo and experimental calibration factors are found to agree at the percent level, in absolute terms. [ABSTRACT FROM AUTHOR] |
| Copyright of Applied Radiation & Isotopes is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 128184706 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: EGSnrc calculation of activity calibration factors for the Vinten ionization chamber. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Townson%2C+R%2E%22">Townson, R.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Tessier%2C+F%2E%22">Tessier, F.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Galea%2C+R%2E%22">Galea, R.</searchLink><relatesTo>1</relatesTo><i> raphael.galea@nrc-cnrc.gc.ca</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Applied+Radiation+%26+Isotopes%22">Applied Radiation & Isotopes</searchLink>. Apr2018, Vol. 134, p100-104. 5p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22National+Physical+Laboratory+%28Great+Britain%29%22">National Physical Laboratory (Great Britain)</searchLink><br /><searchLink fieldCode="DE" term="%22Calibration%22">Calibration</searchLink><br /><searchLink fieldCode="DE" term="%22Ionization+chambers%22">Ionization chambers</searchLink><br /><searchLink fieldCode="DE" term="%22Radioisotopes%22">Radioisotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Radioactive+decay%22">Radioactive decay</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The National Physical Laboratory Vinten 671 chamber was selected as a proving ground for a new radionuclide source model in the EGSnrc software. The computational Vinten model is validated against measurements of radionuclide artifacts whose activities were determined by absolute methods. The response of the Vinten chamber is first calculated as a function of gamma energy, but more strikingly, an explicit simulation of radionuclide decay was implemented and now permits the direct determination of a calibration factor, including additional effects due to all decay paths of the radionuclide. The Monte Carlo and experimental calibration factors are found to agree at the percent level, in absolute terms. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Applied Radiation & Isotopes is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.apradiso.2017.10.010 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 100 Subjects: – SubjectFull: National Physical Laboratory (Great Britain) Type: general – SubjectFull: Calibration Type: general – SubjectFull: Ionization chambers Type: general – SubjectFull: Radioisotopes Type: general – SubjectFull: Radioactive decay Type: general Titles: – TitleFull: EGSnrc calculation of activity calibration factors for the Vinten ionization chamber. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Townson, R. – PersonEntity: Name: NameFull: Tessier, F. – PersonEntity: Name: NameFull: Galea, R. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 09698043 Numbering: – Type: volume Value: 134 Titles: – TitleFull: Applied Radiation & Isotopes Type: main |
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