Graduate Thesis Or Dissertation


Development of a Fundamental Depth-Dependent Neutron Dosimetry Model Public Deposited

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  • Current neutron dosimetry methods rely on the assumption that charged particle equilibrium (CPE) is established within the tissue medium. This maintains that the kinetic energy transferred to the medium (KERMA) is equivalent to absorbed dose. However, this assumption is only valid for large volumes such as the whole body. For small volumes near the surface of the skin, CPE does not always exist. The aim of this study was to develop a deterministic, depth-dependent neutron dosimetry model that accounts for the lack in CPE at shallow depths. The bulk of the model was developed from first principles and existing neutron cross-sectional data. A series of simulations were constructed utilizing MCNP to investigate the relationship between KERMA and absorbed dose with depth in tissue. From this work, a method to account for fractional charged particle equilibrium is proposed and incorporated in a first principles neutron dosimetry model.
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  • Ongoing Research
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  • 2020-06-02 to 2022-07-03



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