Browsing by Subject "Nuclear physics and radiation"
Now showing items 1-20 of 32
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A General-Purpose Simulator for Evaluating Astronaut Radiation Exposure
(2021)Purpose: Current Monte Carlo simulations modeling space radiation exposure typically use simplistic human phantoms with low anatomical detail and minimal variability in physical characteristics. This thesis describes the ... -
Accelerated Multi-Criterial Optimization in Radiation Therapy using Voxel-Wise Dose Prediction
(2020)In external beam radiation therapy (EBRT) for cancer patients, it is highly desirable to completely eradicate the cancerous cells for the purpose of improving the patient’s quality of life and increasing the patient’s likelihood ... -
Advanced Applications of 3D Dosimetry and 3D Printing in Radiation Therapy
(2016)As complex radiotherapy techniques become more readily-practiced, comprehensive 3D dosimetry is a growing necessity for advanced quality assurance. However, clinical implementation has been impeded by a wide variety of ... -
Application of Effective Field Theory in Nuclear Physics
(2019)The production of heavy quarkonium in heavy ion collisions has been used as an important probe of the quark-gluon plasma (QGP). Due to the plasma screening effect, the color attraction between the heavy quark antiquark pair ... -
Assessment of Variability in Liver Tumor Contrast in MRI for Radiation Therapy
(2017)Purpose: To investigate the inter-patient and inter-sequence variation in liver tumor contrast in MRI and the feasibility of improving the liver tumor contrast by using an in-house developed multi-source adaptive fusion ... -
Bayesian Parameter Estimation for Relativistic Heavy-ion Collisions
(2018)I develop and apply a Bayesian method for quantitatively estimating properties of the quark-gluon plasma (QGP), an extremely hot and dense state of fluid-like matter created in relativistic heavy-ion collisions.The QGP cannot ... -
Characterization of the MARS Neutron Detector
(2021)Coherent Elastic Neutrino-Nucleus Scattering (CEvNS) was first measured by COHERENT in 2017 nearly 40 years after it was first proposed. The process involved measuring tiny nuclear recoils that result from a neutrino scattering ... -
Chest Phantom Development for Chest X-ray Radiation Protection Surveys, Internal Beta Dosimetry of an Iodine-131 Labelled Elastin-Like Polypeptide, and I-131 Beta Detection Using a Scintillating Nanoparticle Detector
(2018)Project 1: Chest Phantom Development for Chest X-ray Radiation Protection SurveysPurpose: Develop an acrylic phantom to accurately represent an average adult’s chest for use in radiographic chest unit radiation protection ... -
Commissioning a State-of-Art Small Animal Irradiator and Novel Mini-GRID Treatment Technique
(2022)Purpose: To validate commissioning results associated with the Xstrahl Small Animal Radiation Research Platform (SARRP) installed at Duke University in October 2021, verify the accuracy of the Xstrahl Point Dose Calculator ... -
Comprehensive Radiation and Imaging Isocenter Verification Using NIPAM kV-CBCT Dosimetry
(2020)Purpose: To develop a comprehensive method to measure the radiation uncertainty and coincidence with the kV-CBCT imaging coordinate system using NIPAM kV-CBCT dosimetry.Methods: An N-isopropylacrylamide (NIPAM) dosimeter ... -
Development and Characterization of Low Cost Nanoscintillator-Based Radiation Detection Systems Using 3D Printing Technology
(2021)The fields of medical health physics, imaging, and radiotherapy have pushed the development and implementation of numerous radiation monitoring systems. Furthermore, detection and measurement of ionizing radiation is essential ... -
Development and Implementation of Intensity Modulated Radiation Therapy for Small Animal Irradiator
(2018)Translational cancer research has been around for many years and has resultedin many advancements in cancer treatment. Preclinical radiation therapy is an importanttool used in some studies to better understand the biological ... -
Exclusive Photodisintegration of 3He
(2019)Kinematically complete measurements of three-body photodisintegration of $^3$He were performed at the High Intensity $\gamma$-ray Source (HI$\gamma$S) with nearly monoenergetic 15 MeV photons. The experiment relied on two-nucleon ... -
First FLASH Investigations Using a 35 MeV Electron Beam From the Duke/TUNL High Intensity Gamma-ray Source
(2023)Purpose: An interest in FLASH radiotherapy has been reawakened due to its noted ability to spare normal tissue, equal tumor control compared to conventional irradiation methods and technological advancement allowing for ... -
Improvements in Small Animal Dosimetry: CIX3 Irradiator Characterization, Novel Phantom Investigation, and Shepherd Cs-137 Irradiator Dose Uniformity Analysis
(2023)Project 1 (Chapter 2): X-Strahl CIX3 CharacterizationPurpose: In Fall 2021 Duke University purchased an Xstrahl CIX3 Cabinet Xray Irradiator. A characterization of this machine was performed to determine its dosimetry ... -
Low Energy Neutrino-Nucleus Interactions at the Spallation Neutron Source
(2021)There are few existing measurements of low energy neutrino-nucleus interactions. The COHERENT collaboration is seeking to measure several of these processes using the intense pulsed neutrinos produced at the Spallation Neutron ... -
Measurement of the Neutron-Neutron Quasifree Scattering Cross Section in Neutron-Deuteron Breakup at 10.0 and 15.6 MeV
(2020)Neutron-neutron (nn) quasifree scattering (QFS) in neutron-deuteron (nd) breakup is the kinematic configuration in which the proton remains at rest in the laboratory frame. The cross section for this process is sensitive ... -
Molecular Breast Imaging Using a Clinical Cardiac SPECT Scanner
(2017)Using a clinical, dedicated breast SPECT system for low dose 3D molecular breast imaging (MBI) with Tc-99m-sestamibi could be beneficial as functional imaging follow-up to suspicious mammograms. The feasibility of using ... -
Monte-Carlo Simulation for H(γ, pn)n Experiment with High Intensity Gamma-ray Source (HIγS)
(2015)Experiment to measure the differential cross-section for photodisintegration of triton is being developed at Triangle Universities Nuclear Laboratory (TUNL). The goal of this experiment is to provide data for assessing the ... -
MULTI STAGE HEAVY QUARK TRANSPORT IN ULTRA-RELATIVISTIC HEAVY-ION COLLISIONS
(2022)The quark-gluon plasma (QGP) is one of the most interesting forms of matter providing us with insight on quantum chromodynamics (QCD) and the early universe. It is believed that the heavy-ion collision experiments at the ...
