Browsing Physics by Issue Date
Now showing items 121-140 of 164
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An Initial Calibration of a Proton Induced X-ray Emission (PIXE) Material Analysis System Using GUPIXWin
(East Carolina University, 2020-11-17)Proton induced x-ray emission (PIXE) technology has been used extensively over the last few decades to perform highly accurate multi-elemental trace element analyses with much success. The recent implementation of a new ... -
Assessment of single-spot TOPAS MC simulation for proton pencil beam scanning in homogeneous and heterogeneous media and quantification of dosimetric impact of CT metal artifact on IMPT and VMAT plans
(East Carolina University, 2020-11-17)Proton pencil beam scanning (PBS) radiation therapy has become thriving worldwide. The accuracy of proton dose calculation that based on proper modeling for each single scanning spot as well as accurate CT image data is ... -
The Effects of Low-Energy Heavy Charged Particles on the Optically Stimulated Luminescence and Thermoluminescence of Aluminum Oxide and Beryllium Oxide
(East Carolina University, 2021-06-02)Optically Stimulated Luminescence (OSL) and Thermoluminescence (TL) are methods utilized to evaluate the energy absorbed by crystalline insulators. It is necessary to test luminescent materials in a controlled environment ... -
Electron Emission from Fast Proton and Carbon Ion Interactions with Gold Nanoparticles and Amorphous Solid Water
(East Carolina University, 2021-07-22)Widely used in the treatment of cancer, radiation therapy delivers a lethal dose of energy to malignant tissue. Modeling the deposition of energy in the interactions of the radiation with biological material is important ... -
Development of a multi-purpose proton microbeam system: irradiation of tumor cells by energetic protons at the Bragg peak
(East Carolina University, 2021-08-11)Employing ionization radiation to serve our communities has various applications in agricultural, industrial, and medical fields. The application of physics to medicine deals mainly with ionizing radiation in diagnosis and ... -
In vivo imaging and modeling of artery blood pressure wave and interaction with light in time domain
(East Carolina University, 2021-11-29)Artery blood flow driven by pressure wave is essential for human life. The long-term research goal is to establish a foundation for future translation of the imaging photoplethysmography (iPPG) method into applications ...