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Showing 1 to 20 of 56 for “"Optically stimulated luminescence"”.
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Dating of alluvial fans from NW Argentina using cosmogenic nuclides and optically stimulated luminescence technique
… of sedimentary features. Twelve samples for optically/infrared stimulated luminescence (OSL/IRSL) dating and one depth profile for cosmogenic radionuclide dating (10Be) were collected in the Santa Maria Valley in NW Argentina, where the exceptional preservation of several generations of …
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Development and Implementation of A Remote Audit to ol For High Dose Rate (Hdr) 192Ir Brachytherapy Using Optically Stimulated Luminescence Dosimetry
<p>This work aimed to create a mailable and OSLD-based phantom with accuracy suitable for RPC audits of HDR brachytherapy sources at institutions participating in NCI-funded cooperative clinical trials. An 8 × 8 × 10 cm<sup>3</sup> prototype with two slots capable of holding nanoDot …
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Investigating rates and mechanisms of lateral erosion in a small bedrock river using erosion pins, structure-from-motion photogrammetry, and optically stimulated luminescence dating: Konza Prairie, northeast Kansas
… along bedrock channel banks. Single-grain optically stimulated luminescence (OSL) dating of fluvial deposits overlying a strath terrace was used to determine the depositional age of fluvial deposits and infer the duration of lateral channel mobility during terrace occupation. Lateral …
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Optimization of the MgS:Eu:Sm phosphor for potential use as an optically stimulated personnel dosimeter
… and samarium is a candidate phosphor for laser stimulated personnel dosimeters. Optically stimulated luminescence (OSL) dosimeters are advantageous in that they provide a faster, isothermal dose measurement than conventional thermoluminescent dosimeters. The effects of activator concentration …
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Irradiators for measuring the biological effects of low dose-rate ionizing radiation fields
… low dose-rate fields. The spatial dimensions of optically stimulated luminescence dosimeters make them ideal for measuring dose at a specific location. However the response of these dosimeters varies with photon energy. A method is presented for measuring dose delivered by several fields with …
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Development of a Luminescence protocol for the dating of historical mortars [Sviluppo di un protocollo di Luminescenza per la datazione delle malte storiche]
… dell’età e ridurre l’affidabilità della Optically Stimulated Luminescence (OSL) applicata al quarzo come cronometro universale per i materiali da costruzione. Per superare questa limitazione, il lavoro indaga il potenziale del carbonato, formato naturalmente nel corso della carbonatazione …
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Improving Reno Earthquake Hazard Assessment Through a Ground-Motion Model Analysis and Paleoseismic Study
… near the Mt. Rose range-bounding fault using Optically Stimulated Luminescence to date soil samples from paleoseismic pits. The age constraints are used with topographic offset to constrain the fault slip rate and earthquake recurrence interval. The two approaches can be used to conduct more …
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Late Quaternary semiarid eolian system dynamics : distribution, timing, and soil geomorphic controls, Black Mesa, northeastern Arizona, USA
… that determine the efficacy of samples used in optically stimulated luminescence dating in all three manuscripts.
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Late quaternary valley fill sediments in the River Tyne valley: Understanding late Devensian deglaciation and early postglacial response in northern England
… of a geochronology was attempted, based on optically stimulated luminescence (OSL), and broad-scale geomorphological mapping using traditional field mapping and appropriately scaled digital elevation models fromNEXTMap Britain.The thesis contributes new detailed sedimentological and …
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Paleoseismologic Evidence for Holocene Activity on the Pinto Mountain Fault, Twentynine Palms, California
… two additional events in the late Pleistocene. Optically stimulated luminescence ages from alluvial sediments suggest that the most recent event occurred between 1.7-2.9 ka B.P. and the penultimate event between 2.7-4.2 ka B.P.. Prior to the penultimate event, there were five ground-rupturing …
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Kultūrinių augalų kilmė Lietuvoje Rytų Baltijos regiono kontekste (archeobotanikos duomenimis iki XIV a.) /
… imprints in pottery. Radiocarbon (AMS 14C) and optically stimulated luminescence (OSL) dating methods were used to determine the chronology of investigated plants. This study provided new data on the history of barley, wheat, millet, rye, buckwheat and flax cultivation in Lithuania and the …
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Origin of cultural plants in Lithuania in the context of Eastern Baltic (based on archaeobotanical material dated up to 14th century AD) /
… imprints in pottery. Radiocarbon (AMS 14C) and optically stimulated luminescence (OSL) dating methods were used to determine the chronology of investigated plants. This study provided new data on the history of barley, wheat, millet, rye, buckwheat and flax cultivation in Lithuania and the …
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Les terres cuites architecturales des églises du haut Moyen Age dans le nord-ouest de la France et le sud-est de l'Angleterre : application de la datation par luminescence à l'archéologie du bâti
… to building archaeology, it is the technique of stimulated luminescence applied to ceramic building materials (CBM) that is the focus of this study. The research reported in this thesis concerns the re-evaluation of an archaeological assumption surrounding the origin of CBM used in 9th, 10th and …
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Ceramic building materials in early medieval churches in north-western France and south-eastern England. Application of luminescence dating to building archaeology.
… to building archaeology, it is the technique of stimulated luminescence applied to ceramic building materials (CBM) that is the focus of this study. The research reported in this thesis concerns the re-evaluation of an archaeological assumption surrounding the origin of CBM used in 9th, 10th and …
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Exploration and application of post-infrared high-temperature infrared stimulated luminescence dating techniques: investigation of marine terrace deposits along the northern San Andreas Fault
Optically stimulated luminescence (OSL) dating is a relatively new dating method, tangibly introduced in 1985 when Huntley et al. demonstrated the ability to use light-sensitive traps to measure radiation exposure and determine the age of sediment. Quartz and feldspar grains are commonly used for …
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Analysis of Fossil Pollen from a Pleistocene Cypress Forest Preserved on the Northern Gulf of Mexico Continental Shelf
… Marine Isotopic Stage (MIS) 3. An extrapolated optically-stimulated luminescence (OSL) date from a sister core to 15DF3B, revealed an age of 72,000 years (early MIS 4 or 5). However, the pollen results from both cores indicate that the peat sections have recorded the same event in the …
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Reevaluating the Geologic Formations of the Upper Coastal Plain in Chesterfield County, South Carolina
… Micro- and macrofossil identification and optically-stimulated luminescence (OSL) dating provided age control.</p> <p>Four distinct mappable units occur throughout the Patrick quadrangle. Resting unconformably on schist of the Paleozoic Persimmons Fork Formation, the Cretaceous Middendorf …
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Late Quaternary sedimentary architecture and depositional history of the Monahans Dune Field, Winkler County, TX.
… the near-surface stratigraphy was derived from Optically Stimulated Luminescence (OSL) and Thermal Transfer (TT-OSL) Single Aliquot Regeneration (SAR) protocols on quartz grains from in-tact sediment cores. The stratigraphy and chronology of quartz grains from these cores document thirteen …
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Dosimetry of ¹²⁵Iodine protons for in vivo mouse irradiation study
… source. Two distinct methods were used. First, Optically Stimulated Luminescence (OSL) Dosimeters were placed in an array over an area slightly larger than the irradiation area. The dose equivalent they each reported was recorded weekly. Secondly, a series of simulations were performed using …
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Fluvial geomorphology and paleofloods in arid central Australia
… structures. Dating by radiocarbon and optically stimulated luminescence shows that sediment is stored in the active flood plain for only a few hundred years before being transported and redeposited. Reaches of temporary sediment storage sometimes are subject to extreme cha11nel …
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