Conveners
Radiation and Health Physics
- Marco Garbini (Museo Storico della Fisica e Centro Studi e Ricerche "Enrico Fermi", Roma)
Radiation and Health Physics
- James Larkin (University of Witwatersrand)
This study evaluates the radiological health implications of human exposure to background ionising radiation (BIR) at the mining site, with particular emphasis on the Annual Effective Dose Equivalent (AEDE) and Excess Lifetime Cancer Risk (ELCR). Soil samples were collected from four distinct zones; dumps, farmland, surface soil and the processing site, and analyzed using a gamma-ray...
Abstract
Radiation therapy using Iodine-131 (I-131) is a widely employed treatment for thyroid disorders; however, it poses potential radiation exposure risks to patient caregivers due to gamma emissions from treated patients. This study estimates the radiation doses received by family members of patients undergoing I-131 therapy in Tanzania, where cultural practices and living conditions...
This work contributes to the Radiation and Health Physics theme through the application of dose quantification and optimization methodologies in intraoral radiography. By establishing locally relevant Diagnostic Reference Levels (DRLs) for both adult and pediatric populations, the study addresses a key gap in South African radiological protection practice. The findings support standardization...
This study evaluated organ-specific annual effective doses and excess lifetime cancer risk (ELCR) from radon exposure through 20 groundwater samples in a selected population. The experiment was analysised using Liquid Scintillation Counter (LSC). Radon concentrations ranged from 10.6 to 43.1 Bq/L, with over 90% of samples exceeding the U.S. EPA limit of 11.1 Bq/L, though remaining below the...
Accurate occupational dose estimation is essential for optimizing radiation safety and ensuring compliance with regulatory guidelines. The spatial distribution of scatter radiation in the radiography room was characterized using Monte Carlo simulations based on Geant4. A diagnostic X-ray system was accurately modeled and validated using experimental measurements to evaluate the magnitude and...
This study presents the GATE-based Monte Carlo model and performance evaluation of a non-time-of-flight, collimator-free tomographic medical imaging system based on non-collinear cascade gamma-ray Coincidence (CGC) imaging. A CGC imaging model was developed to reconstruct three-dimensional decay vertices from valid coincidence events. A custom geometric back-projection reconstruction algorithm...
