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  • Beehive model creation for use in determining radiation dose to beeswax and bee larvae

    Creator:
    Jia, Junwei
    Abstract:
    Honeybees and honey combs are good indicators of environmental contamination and can be important for dose calculations. In the event of reactor accidents and nuclear weapon testing, the released radioactive materials are likely to be transported through various environmental pathways as well as by humans and animals, including bees. Due...
    Resource Type:
    Masters Thesis
    Full Text:
    . Title: Beehive Model Creation for Use in Determining Radiation Dose to Beeswax and Bee Larvae

  • Application of Advanced Hybrid Transport Methods for Nonproliferation Test Problems

    Creator:
    Somasundaram, Elanchezhian
    Abstract:
    The implementation of advanced hybrid (Monte Carlo/Deterministic) transport methods for realistic test problems has been a challenge due to the overhead efforts associated with interfacing a solution generated by a deterministic solver with a Monte Carlo based radiation transport code. In this work, with the help of Transpire, Inc., a...
    Resource Type:
    Dissertation
    Full Text:
    procedure as implemented in MGMC . . . . . 53 6.1 CAD model for mulch problem

  • Extending the applicability of implicit Monte Carlo Diffusion : frequency dependence and variance reduction using the difference formulation

    Creator:
    Cleveland, Mathew A.
    Abstract:
    The intent of this work is to extend Implicit Monte Carlo Diffusion (IMD)[Gen. 2001] to account for frequency dependence and to incorporate the difference formulation[Szo. 2005] as a source manipulation variance reduction technique. This work shows the derivation of the probabilities and the associated proofs which govern the frequency dependent...
    Resource Type:
    Masters Thesis
    Full Text:
    his friendship. Wes, as a doctorial candidate, has been a strong “role model” for me throughout my

  • Extending the discrete maximum principle for the IMC equations

    Creator:
    Talbot, Paul W.
    Abstract:
    The implicit Monte Carlo (IMC) method [16] for radiative transfer, developed in 1971, provides numerical solutions to the tightly-coupled, highly-nonlinear radiative heat transfer equations in many physical situations. Despite its popularity, there are instances of overheating in the solution for particular choices of time steps and spatial grid sizes. To...
    Resource Type:
    Masters Thesis

  • A parallel/vector Monte Carlo MESFET model for shared memory machines

    Creator:
    Huster, Carl R.
    Abstract:
    The parallelization and vectorization of Monte Carlo algorithms for modelling charge transport in semiconductor devices are considered. The standard ensemble Monte Carlo simulation of a three parabolic band model for GaAs is first presented as partial verification of the simulation. The model includes scattering due to acoustic, polar-optical and intervalley...
    Resource Type:
    Masters Thesis
    Full Text:
    A parallel/vector Monte Carlo MESFET model for

  • An MCNP benchmark model of the large experimental ZPPR-19B sodium fast reactor

    Creator:
    Onufer, Mark
    Abstract:
    The International Handbook of Evaluated Reactor Physics Benchmark Experiments contains detailed descriptions of many different reactor facilities. A large portion of these experiments have not been fully modeled due to the unavailability of computational power at the time of the experiment’s execution. With the advent of renewed interest in Sodium...
    Resource Type:
    Masters Thesis
    Full Text:
    "An MCNP Benchmark Model of the Large Experimental ZPPR-19B

  • Simulating extreme total water levels using a time-dependent, extreme value approach

    Creator:
    Serafin, Katherine A.
    Abstract:
    Coastal flood hazard zones and the design of coastal defenses are often devised using either the maximum recorded total water level (TWL) or a 'design' event such as the 100-year return-level flood, usually projected from observed extreme events. Despite technological advances driving more consistent instrumental records of wave heights and...
    Resource Type:
    Masters Thesis
    Full Text:
    observational record result in limited estimates of extreme return-level events. We present a model that

  • Hybrid classical-quantum dose computation method for radiation therapy treatment planning

    Creator:
    Colburn, Gabriel G.
    Abstract:
    Radiation therapy treatment planning and optimization requires accurate, precise, and fast computation of absorbed dose to all critical and target volumes in a patient. A new method for speeding up the computational costs of Monte Carlo dose calculations is described that employs a hybrid classical-quantum computing architecture. Representative results are...
    Resource Type:
    Masters Thesis
    Full Text:
    the linear quadratic (LQ) model . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Architecture

  • Monte Carlo device modeling applications on parallel computers

    Creator:
    Pennathur, Shankar S.
    Abstract:
    One of the ways of countering the ever increasing computational requirements in the simulation and modeling of electrical and electromagnetic devices and phenomena, is the development of simulation and modeling tools on parallel computing platforms. In this thesis, a previously developed Monte Carlo parallel device simulator is utilized, enhanced, and...
    Resource Type:
    Dissertation
    Full Text:
    the full band model are developed. Most of the scattering mechanisms, pertinent to ZnS are included

  • The iterative thermal emission Monte Carlo method for thermal radiative transfer

    Creator:
    Long, Alex R.
    Abstract:
    For over 30 years, the Implicit Monte Carlo (IMC) method has been used to solve challenging problems in thermal radiative transfer. These problems are typically optically thick and di ffusive, as a consequence of the high degree of "pseudo-scattering" introduced to model the absorption and reemission of photons from a...
    Resource Type:
    Masters Thesis
    Full Text:
    high degree of “pseudo- scattering” introduced to model the absorption and reemission of photons from