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Showing 1 to 20 of 45 for “"Reactor Physics"”.
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Optimal Control Theory Applications to Reactor Physics Problems
Made available in DSpace on 2014-12-14T06:25:56Z (GMT). No. of bitstreams: 1 7606951.pdf: 3973258 bytes, checksum: 68c3fc011e2d1946351a693da4212271 (MD5) Previous issue date: 1975
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Arbitrary Size Perturbation Theory in Nuclear Reactor Physics
Made available in DSpace on 2014-12-14T06:25:59Z (GMT). No. of bitstreams: 1 7624137.pdf: 5858985 bytes, checksum: 5ca4e3a81bc44cdd3a20adb301987473 (MD5) Previous issue date: 1976
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Multi-Component Controllers in Reactor Physics Optimality Analysis
Made available in DSpace on 2014-12-14T06:26:06Z (GMT). No. of bitstreams: 1 7913369.pdf: 3262935 bytes, checksum: bb928dd68efab7e930a1611b6cd7253f (MD5) Previous issue date: 1978
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Reactor physics design of supercritical CO₂-cooled fast reactors
Gas-Cooled Fast Reactors (GFRs) are among the GEN-IV designs proposed for future deployment. Driven by anticipated plant cost reduction, the use of supercritical CO₂ (S-CO₂) as a Brayton cycle working fluid in a direct cycle is evaluated. By using S- CO₂ at turbine inlet conditions of 20 MPa and …
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A reactor physics framework to detect anomalies in HTGR core
… anomalies in High Temperature Gas-cooled Reactors (HTGRs). Neutron noise is defined as the fluctuations in the neutron detector signal caused by perturbations in a nuclear reactor. Neutron noise analysis is performed by obtaining the neutron flux signals in the time domain, which is then …
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Reactor physics assessment of thick silicon carbide clad PWR fuels
… improve the economics and safety of light water reactors (LWRs). "Thick" SiC cladding (0.089 cm) is easier (and thus more economical) to manufacture than SiC of conventional Zircaloy (Zr) cladding thickness (0.057 cm). Five fuel and clad combinations are analyzed: Zr with solid U0 2 pellets, …
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3D Reactor Physics Modelling Of Reduced-Moderation Water Reactor (RMWR) Fuel
The Reduced-Moderation Water Reactor (RMWR) is an innovative water-cooled reactor with some of the characteristics of a fast neutron reactor, which can achieve a high conversion ratio of more than 1.0 and a negative void reactivity coefficient. The conception of RMWR is built on established Boiling …
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Developing modern graphite exponential pile experiments to augment reactor physics education
Reactor Physics is not always an intuitive subject for students to understand. When nuclear engineering was beginning as a field it was common for students to complete measurements on sub-critical reactors, which could not sustain a fission chain reaction, in order to develop student intuition. The …
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Methods for including multiphysics feedback in Monte Carlo reactor physics calculations
The ability to model and simulate nuclear reactors during steady state and transient conditions is important for designing efficient and safe nuclear power systems. The accurate simulation of a nuclear reactor is particularly challenging because the multiple physical processes within the reactor …
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Isotopic and reactor physics characterization of a gas-cooled, pebble-bed microreactor
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Hydrogen Distribution in Metal Hydrides and its Effect on Reactor Physics Calculations
Efficient and trustworthy simulations of nuclear reactor systems require that neutronmaterial interaction data be accurate, convenient to use, and readily available. When describing these interactions, the corresponding data is highly dependent on factors such as neutron energy, material …
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Reactor physics considerations for implementing silicon carbide cladding into a PWR environment
… cladding material for Pressurized Water Reactors: very slow corrosion rate, ability to withstand much higher temperature with little reaction with steam, and more favorable neutron absorption. To evaluate the feasibility of longer fuel cycles and higher power density in SiC clad fuel, a …
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Variational derivation of modal-nodal finite difference equations in spatial reactor physics.
Massachusetts Institute of Technology. Dept. of Nuclear Engineering. Thesis. 1972. Ph.D.
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Core design and reactor physics of a breed and burn gas-cooled fast reactor
… has focused on the design of a Gas-cooled Fast Reactor (GFR) operating in a Breed and Burnm (B&B) fuel cycle mode. B&B refers to a once-through fuel cycle where low enriched uranium (less than 5 w/o 235U in U) subcritical assemblies are loaded into the core in equilibrium, yet in-situ plutonium …
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Coupling of system thermal-hydraulics and Monte-Carlo method for a consistent thermal-hydraulics-reactor physics feedback
… three-dimensional continuous-energy Monte Carlo reactor physics code, Serpent, with thermal-hydraulics safety analysis code RELAP5-3D. Thermal-hydraulics and reactor physics coupling is commonly used in deterministic methods, for example RELAP5/PARCS and TRACE/PARCS. It has been well-validated …
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Parallel, asynchronous ray-tracing for scalable, 3D, full-core method of characteristics neutron transport on unstructured mesh
One important goal in nuclear reactor core simulations is the computation of detailed 3D power distributions that will enable higher confidence in licensing of next-generation reactors and lifetime extensions/power up-rates for current-generation reactors. To date, there have been only a few …
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Impact of thorium based molten salt reactor on the closure of the nuclear fuel cycle
<p>"Molten salt reactor (MSR) is one of six reactors selected by the Generation IV International Forum (GIF). The liquid fluoride thorium reactor (LFTR) is a MSR concept based on thorium fuel cycle. LFTR uses liquid fluoride salts as a nuclear fuel. It uses <sup>232</sup>Th and <sup>233</sup>U as …
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Full core 3D neutron transport simulation using the method of characteristics with linear sources
… simulation tools for full core Light Water Reactor (LWR) analysis has been a long-standing goal of the reactor physics community. While direct transport simulations have previously been far too computationally expensive, advances in computer hardware have allowed large scale simulations to …
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Advanced application of the discrete generalized multigroup method and recondensation to reactor analysis
Fine-group whole-core reactor analysis remains one of the long sought goals of the reactor physics community. Such a detailed analysis is typically too computationally expensive to be realized on anything except the largest of supercomputers. Recondensation using the Discrete Generalized Multigroup …
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The Determination of the Thermal Neutron Flux in a Research Reactor
Since a research reactor serves as a neutron source for a large number of experiments, knowledge of the neutron flux, and of its spatial and spectral energy distribution is of great importance, not only for purposes of experimental reactor physics (e.g., determination of specific data with regard …
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