<p>The natural ² / ³ / â¸U, ² / ³ / ² / Th and â´° / K radioactive content of vineyard soil was measured with an in-situ gamma-ray detector. The activity concentration measured with the in-situ detector are normalized using the laboratory-determined activity concentrations of several samples from the vineyard site. To determine the activity concentration of a particular soil sample, the gamma-ray photopeak detection efficiencies are required. In this work, the detection efficiencies were derived for each soil sample using gamma-ray photopeaks associated with the radionuclide of ² / ³ / â¸U, ² / ³ / ² / Th present in the sample, and the â´° / K, 1460.8 keV gamma-ray peak, from KCl salt.</p>
| Identifer | oai:union.ndltd.org:UNWC/oai:UWC_ETD:http%3A%2F%2Fetd.uwc.ac.za%2Findex.php%3Fmodule%3Detd%26action%3Dviewtitle%26id%3Dgen8Srv25Nme4_6805_1248251582 |
| Date | January 2007 |
| Creators | Joseph, Angelo Daniel. |
| Source Sets | Univ. of Western Cape |
| Language | English |
| Detected Language | English |
| Type | Thesis and dissertation |
| Format | |
| Coverage | ZA |
| Rights | Copyright: University of the Western Cape |
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