Please use this identifier to cite or link to this item:
http://hdl.handle.net/11375/20058
Title: | X-Ray Emission Analysis Using Radioisotopic Alpha-Particle Excitation |
Authors: | Robertson, Robert |
Advisor: | Fritze, K. |
Department: | Chemistry |
Keywords: | x-ray, emission, radioisotopic, alpha-particle, excitation |
Publication Date: | Sep-1977 |
Abstract: | <p> The combined capabilities of alpha-particle emitting isotopic excitation sources and modern semiconductor detectors are investigated with a view to extending the light-element range of radioisotope-based X-ray emission analysis.</p> <p> The construction and performance of a windowless low-energy X-ray spectrometer designed around a lithium-drifted silicon detector and a 210Po source are discussed. It is shown that under the conditions used low-energy X-ray emission and detection are greatly favoured.</p> <p> Measurements of relative cross-sections for the production of X-rays by ~5.2 MeV alpha-particles in elements from oxygen to iron are reported. The results for elements of Z>16 are in good agreement with those predicted from the scaling of equal velocity proton values but show large positive deviations for elements of Z<16.</p> <p> Investigative applications of the spectrometer to quantitative analyses of blast-furnace slags, iron ores and silicate rocks for oxygen, silicon, sulpher, calcium and iron are described.</p> <p> The future prospects of radioisotopic alpha-particle X-ray excitation methods are surveyed.</p> |
URI: | http://hdl.handle.net/11375/20058 |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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Robertson_Robert_1977Sept_Ph.D..pdf | 4.84 MB | Adobe PDF | View/Open |
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