Density correction — a better method for difficult samples

Simple item page
dc.contributor.authorMcOrist, GDen_AU
dc.contributor.authorBowles, CJen_AU
dc.date.accessioned2022-11-14T00:27:56Zen_AU
dc.date.available2022-11-14T00:27:56Zen_AU
dc.date.issued2008-11-25en_AU
dc.date.statistics2022-02-01en_AU
dc.description.abstractWhen most powdered samples are analysed using gamma-ray spectrometry, the ability to accurately determine the concentration of low energy nuclides such as Pb-210 (46.5 keV), Th-234 (63.3 keV), and Th-230 (67.7 keV) requires some degree of density correction. A general method has been previously discussed using a Ra-226 point source to determine attenuation through the sample. However relatively dense samples and those containing certain elements require a more complex correction process to obtain correct concentration data. In these cases it is not possible to accurately measure the Pb-210 peak in the point source through these samples. The point source method was extended using major element data and incorporated into an Excel spreadsheet. Results obtained from a number of different samples and matrices were compared with nuclide data obtained using a density correction algorithm incorporated in existing proprietary software. These will be discussed.en_AU
dc.identifier.citationMcOrist, G. D., & Bowles, C. J. (2008). Density correction — a better method for difficult samples. Paper presented to SPERA 08, South Pacific Environmental Radioactivity Association Conference, University of Canterbury, Christchurch, New Zealand, 23-27 November 2008, (pp. 50).en_AU
dc.identifier.conferenceenddate13 December 2012en_AU
dc.identifier.conferencenameSPERA 08, South Pacific Environmental Radioactivity Association Conferenceen_AU
dc.identifier.conferenceplaceChristchurch, New Zealanden_AU
dc.identifier.conferencestartdate23 November 2008en_AU
dc.identifier.pagination50en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/14038en_AU
dc.language.isoenen_AU
dc.publisherSouth Pacific Radioactivity Associationen_AU
dc.subjectSamplingen_AU
dc.subjectPowdersen_AU
dc.subjectSpectroscopyen_AU
dc.subjectAttenuationen_AU
dc.subjectIsotopesen_AU
dc.subjectRadium 226en_AU
dc.subjectThorium 230en_AU
dc.subjectkeV rangeen_AU
dc.titleDensity correction — a better method for difficult samplesen_AU
dc.typeConference Abstracten_AU
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
McOrist.pdf
Size:
106.1 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Conference Publications