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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 86 for “"Radioisotope"”.
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Development of a switchable radioisotope generator
<p>The Switchable Radioisotope Generator utilizes alpha-induced reactions to produce a combination of photons, neutrons, and protons with varying fluxes dependent on target materials and source geometry. The activity/strength of the secondary radiation is further controlled by manipulating the …
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Radioisotope Inventory Of Spent Nuclear Fuel In Mathematica
… tools are currently needed to model the radioisotope inventory of all spent nuclear requiring disposal or other forms of remediation to accurately frame the scope of the issue. This project describes a simple method of calculating radioisotope concentrations in spent fuel by utilizing a …
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Toward high efficiency radioisotope thermophotovoltaic system by spectral control
… design, modeling, and measurement results of a radioisotope thermophotovoltaic system (RTPV) using a two-dimensional photonic crystal emitter and low bandgap thermophotovoltaic (TPV) cell to realize spectral control. The RTPV generator aims to use the decay heat released by plutonium-238 fuel to …
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A Study of the Synamic Distribution of Radioisotope Tracers in Organ Imaging
Made available in DSpace on 2017-07-06T18:42:22Z (GMT). No. of bitstreams: 3 Badran_Shafic_M_MS.pdf: 31883892 bytes, checksum: 1d3bc603ebf094d4529147bfa28ed5e0 (MD5) Badran_Shafic_M_MS_ABS.pdf: 435675 bytes, checksum: ec8f70f41d3cf2d2bef0eb7380e8983f (MD5) license.txt: 4813 bytes, checksum: …
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Application of radioisotope imaging and therapy in patients with breast carcinomas that express the sodium iodide symporter gene
… test for those who may ultimately benefit from radioisotope treatment. The most appropriate radioisotope for therapy remains to be determined.
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In vitro starch digestibility and ex-vivo glucose response studies of Vietnamese starchy foods using Caco-2 cells and 14C radioisotope
A systematic scientific investigation of starch digestibility and glucose response of the most commonly consumed Vietnamese rice varieties, rice and wheat products have not been studied yet. Starchy staples were investigated for their physicochemical properties, in vitro starch digestibility and …
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Study of nuclear transmutation using cyclotron for post-CMOS activation of Beta emitters
… A study of post-CMOS fabrication process for radioisotope activation produced by nuclear transmutation is presented. Activation of the precursor occurs by nuclear transmutation and results in the desired beta emitting radioisotope. A microfabricated p-n diode on a silicon substrate coated with …
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Effect of high pressure on the rates of electron exchange reactions / William Harry Jolley.
… under high pressure, were studied, using radioisotope tracers to follow the reactions.
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Competition in the radioisotopes market: evaluation and analysis of drivers which affect mo-99 market share
This research aims to evaluate competition in the radioisotopes market and to analyze drivers that affect the market share of radioisotopes, particularly Molybdenum 99 (Mo-99), the most widely used radioisotope in medical procedures. Radioisotopes are safe radioactive substances used globally …
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Investigation of Thermal Lensing in Nuclear Combined Wall/volume Pumped Lasers
Finally, a radioisotope powered gas medium is proposed for the first time as a method to produce gas lenses for potential industrial applications.
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Small scale manufacturing and scintigraphic detection of pellet formulations
… a small scale in order to minimise quantities of radioisotope required for manufacturing for scintigraphic studies.Extrusion-spheronisation used microcrystalline cellulose and lactose as the main components. Thermally controlled spheronisation at elevated temperature produced pellets within a …
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Alternative design concepts for the electron to photon converter in the accelerator based production of technetium-99m
The photonuclear production of radioisotopes using electron LINAC bremsstrahlung sources offers an industry alternative to reactor and ion beam production methods. One such method under development is the utilization of the Giant Dipole Resonance in the (y,n) reaction cross-section. This method is …
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<sup>133</sup>Xe Inhalation Technique: Effect of the Contralateral Contribution on Regional Cerebral Blood Flow Parameters.
… (rCBF), which involves inhalation of the gaseous radioisotope 133Xe, was introduced by Mallett and Veall, and later modified by Obrist, et al. The details of our laboratory arrangement at University Hospital have been previously reported. The method is reviewed below.
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Análise das propriedades físicas em estrutura do tecido ósseo de eqüinos
… of gamma radiation of 59,6 keV of the radioisotope 241Am, using samples of equine radio, in growth and adult. The samples of bones were supplied by the Department of Pathology of University of Veterinary Medicine and Zootechnics - UNESP campus Botucatu. Bones of the paws front left of …
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Corais e comunidades recifais e sua relação com a sedimentação no Banco dos Abrolhos, Brasil
… 15 knots. This and the absence of differences in radioisotope composition of sediments in different seasons suggest an important influence of resuspention on the sedimentation regime. Coral communities showed no direct relation with sediment deposition. However, in most cases, reefs with high …
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Altersbetrachtung und numerische Simulation zu Möglichkeit und Grenzen einer prozessorientierten Kontrolle (Frühwarnsystem) der Bewirtschaftung tiefer Grundwässer
… shallow aquifer pollution; and the environmental radioisotope response to deep water abstractions is predicted as a function of pumping rate, duration and depth, and of aquifer heterogeneity. The readjustment time of environmental radioisotope repartitions under given hydraulic stress lies …
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Exercise induced pain and damage in human skeletal muscle
… loss, morphological changes and the patterns of radioisotope uptake. Delayed onset muscle pain occurred after eccentric but not concentric contractions and was associated with appreciable muscle damage. A technique was developed to quantitate the intensity and distribution of tenderness in …
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Experimental approaches for the production of thorium-229
… the rest of the body. Actinium-225 is an ideal radioisotope for TAT due to its short half-life (t1/2=9.92 days) and 3 α-emitting decay daughters. Currently, there is not enough 225Ac available to meet expected demand. Therefore, the goal of this research is to produce more of the parent …
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Long range x-ray imaging utilizing coded aperture techniques and dynamic reconstruction
… of 50% fill factor as the detector, and both radioisotope sources and low Z backscatter targets, images were acquired and reconstructed. The geometry of the experimental setup was optimized to reduce background noise from air scatter and environmental sources, as well as to prevent incident …
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