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http://hdl.handle.net/11375/6389
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DC Field | Value | Language |
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dc.contributor.advisor | Kuehner, J.A. | en_US |
dc.contributor.advisor | Southon, J.R. | en_US |
dc.contributor.author | Roman, Hermina | en_US |
dc.date.accessioned | 2014-06-18T16:35:16Z | - |
dc.date.available | 2014-06-18T16:35:16Z | - |
dc.date.created | 2010-06-22 | en_US |
dc.date.issued | 1989-06 | en_US |
dc.identifier.other | opendissertations/1704 | en_US |
dc.identifier.other | 3197 | en_US |
dc.identifier.other | 1367074 | en_US |
dc.identifier.uri | http://hdl.handle.net/11375/6389 | - |
dc.description.abstract | <p>The development of a technique for the extraction of ¹⁴c extraction technique and the ¹⁴c Accelerator Mass Spectrometer detection technique were applied to the measurements reported in this work. Samples of quartz chips were irradiated with neutrons produced by a 20 MeV tritium beam interacting with a deuterated Ti foil target. This irradiation permitted the first measurement of the ¹⁶o(n,2pn)¹⁴c cross section at 35 MeV for which a value of 16±3 mb was found. Two stacks of quartz plates were irradiated with 63 MeV protons. The measurement of the ¹⁶o(p,3p)¹⁴c cross section at several energies below 63 MeV are presented. The ¹⁴c in-situ produced was measured in seven obsidian rock samples. In four cases the values obtained agree with the calculated production rate of 0.19±0.05 atoms Kg⁻¹ min⁻¹ at 46º geomagnetic latitude and 640 g cm⁻².</p> | en_US |
dc.subject | Chemistry | en_US |
dc.title | Measurements of In Situ Production of Carbon-14 in Silicon Dioxide Production Rates and Cross-sections | en_US |
dc.type | thesis | en_US |
dc.description.degree | Doctor of Philosophy (PhD) | en_US |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Size | Format | |
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fulltext.pdf | 8.62 MB | Adobe PDF | View/Open |
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