Browsing by Subject "Major nuclear engineering"
Now showing items 1-20 of 37
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(Texas A&M University. Libraries, 1965)A novel method for determining nuclear level widths is used in this investigation. Neutron capture gamma-rays from iron bombard a lead target. The incident 7.285 Mev gamma-rays cause resonance fluorescence of the Pb²⁰⁸ in ...
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(Texas A&M University. Libraries, 1992)One of the most reliable and commonly selected options for low levels of electrical power production (few kW[e] or less) in space is the radioisotope thermoelectric generator (RTG), which employs plutonium-238 (238Pu) as ...
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(Texas A&M University. Libraries, 1969)Neutron pulses as detected by a BF3 counter located in the center of an AGN-201 reactor were analyzed concerning their time behavior with the objective of ascertaining the feasibility of an on-line determination of the ...
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(Texas A&M University. Libraries, 1994)From January 1994, U.S. nuclear plants must develop a technically rigorous approach for determining the effective dose equivalent for their w ork forces. This dissertation explains concepts associated with effective dose ...
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(Texas A&M University. Libraries, 1987)Calculations of Absorbed Fraction (AF) of radiation energy, for various source and target organs of interest in internal dosimetry, neglect the transport of electron by-products from photon interactions as well as beta ...
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(Texas A&M University. Libraries, 1986)The emergent angular and energy distributions of 8-200 keV protons transmitted through thin (<1 μm) single-crystal silicon membranes were measured using a scanning surface barrier detector which had an energy resolution ...
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(Texas A&M University. Libraries, 1979)Angular singularities for the multigroup neutron diffusion equation are examined. Since the solution to this equation as well as the solution to other engineering equations of interest can exhibit unbounded derivatives at ...
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(Texas A&M University. Libraries, 1994)The objective o f this dissertation is to investigate the physical and chemical mechanisms involved when ionizing radiation interacts with biological m olecules in aqueous solution. Polyuridylic acid has been selected as ...
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(Texas A&M University. Libraries, 1992)Engineering design is a complex and ill defined procedure. Design is a highly heuristic problem solving activity which involves problem definition, solution or strategy selection (search among alternatives), trade off ...
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(Texas A&M University. Libraries, 1993)Thermoluminescent dosimeters (TLD's) have largely replaced film badges as the preferred primary personnel monitoring device. However, no "perfect" TLD phosphor has been discovered due to the rigid constraints that must be ...
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(Texas A&M University. Libraries, 1967)Several cases of nuclear resonance scattering below the neutron emission threshold energy region have been observed using discrete gamma rays produced by the radiative capture of neutrons in elements. Eight such cases were ...
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(Texas A&M University. Libraries, 1992)A prompt gamma activation analysis system was developed using available equipment at the Texas A&M Nuclear Science Center. This system was used to obtain prompt gamma spectra from geologic materials. A series of exposures ...
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(Texas A&M University. Libraries, 1995)A two-detector thermoluminescent dosimeter (TLD) reader was developed which records two different wavelengths of light. The detector has the capability to record two glow curves of different wavelength simultaneously. The ...
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(Texas A&M University. Libraries, 1992)A method for applying the discrete ordinates method for solution of the neutron transport equation in arbitrary two-dimensional meshes has been developed. The finite difference approach normally used to approximate spatial ...
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(Texas A&M University. Libraries, 1965)The effects of epithermal neutron flux an isotropy upon the cadmium correction factor F[subscript cd] have been determined both theoretically and experimentally for indium foils in a water medium. Spencer's and Fano's ...
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(Texas A&M University. Libraries, 1992)Metal matrix composites (MMCs) are currently receiving much interest in the materials community. These materials may be engineered to specific design needs by varying the reinforcement material and morphology. The primary ...
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(Texas A&M University. Libraries, 1985)High order numerical solutions of the time-dependent one speed neutron transport equation are developed using cubic hermite polynomial trial functions, variational techniques, and exponential matrix operators. Two new ...
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(Texas A&M University. Libraries, 1992)Methods currently available to assess dose from inhalation exposures to the transuranic oxides cannot accommodate the variety of exposure materials, nor the dissolution rates of the materials within the lungs. The purpose ...
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In vivo measurement system calibration using magnetic resonance imaging and Monte Carlo computations (Texas A&M University. Libraries, 1993)A new method for calibrating in vivo measurement systems using magnetic resonance imaging and Monte Carlo computations is presented. The method employs the enhanced three-point Dixon technique for producing pure fat and ...
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(Texas A&M University. Libraries, 1969)It was shown that nonuniform magnetic field forces are capable of propelling micron diameter iron particles from rest in a traveling wave tube. A force law was derived which qualitatively accounts for measured particle ...