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Showing 1 to 7 of 7 for “"Beryllium-7"”.
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Development of a MeVVA based beryllium-7 plasma source
… this MeVVA-type source is to create a confinable beryllium-7 (7-Be) plasma. 7-Be is a peculiar isotope due to its varying radioactive decay half-life in different electro-chemical configurations. It is also found in an unexpected abundance at high altitudes of the Earth's atmosphere. It is …
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Recoil Momenta in the Decay of Beryllium-7 and the Neutron-Hydrogen Mass Difference
Made available in DSpace on 2015-05-12T17:11:37Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0002084.PDF: 3373831 bytes, checksum: 91eaf4d4afc892c62e8b29f974e0171a (MD5) Previous issue date: 1950
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The environmental behaviour of beryllium-7 and implications for its use as a sediment tracer
The use of cosmogenic beryllium-7 (7Be) as a soil and sediment tracer relies upon a number of important assumptions which to date have not been fully underpinned by supporting data. As a catchment management tool 7Be offers unique potential to assess the effects of recent land use or climate change …
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Investigating the Use of Fallout Radionuclides Beryllium-7 and Excess Lead-210 as Short-Term Stream Sediment Chronometers in the Agricultural Upper Midwest, USA
… of my thesis, I use the fallout radionuclides beryllium-7 and excess lead-210 to estimate the relative time since precipitation exposure, or “age”, of suspended sediment at various points in a stream system in eastern Wisconsin during storms. The purpose of this work was to characterize …
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Differential Sedimentation In A Mississippi River Crevasse Splay
… This is confirmed by cores dated using Beryllium-7, which provides a record of the deposition on the bar over a 90-day period. Stratigraphic data from cores obtained on the bar are used to extend the conceptual model to account for variable riverine inputs. A numerical model, developed …
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Rovibrational Dynamics of Nuclei and Molecules
… for the Helium-4 nucleus and the Lithium-7/Beryllium-7 isodoublet, comparing our findings with experimental data. We propose a model for the Carbon-12 nucleus based on point ↵-particles restricted to isosceles triangular configurations, inspired by linear chain and equilateral triangular …
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Phosphorous cycling in the Gulf of Maine : a multi-tracer approach
… (t_ = 25.3 d), thorium-234 (t_ = 24.1) and beryllium-7 (t_ = 53.3 d). New techniques were developed for the extraction, purification and measurement of 32p and 33p in rainwater and in inorganic, organic and particulate pools in seawater. In order to constrain the input ratio of 33p/32p, rain …