Study of Dose Measurement and Its Effects Using Relative Hp(10) and Uncertainty Across Different Radiation Field Sizes and Energies

Abstract

This work investigates the dosimetric behavior of relative Hp (10) at various energy levels and radiation field sizes with particular attention to radiation field positions. The goal is to measure the associated uncertainties and evaluate the relative variations in Hp (10) at various positions. The study seeks to improve accuracy in clinical radiation therapy and protection by analyzing the influence of field size and energy on dose distribution. The calibrated dosimeters were used in clinically relevant conditions, with field sizes ranging from 10 ×10 cm² to 25×25 cm². Six and fifteen Megavolts of energy were studied. Multiple dosimetric behaviors were captured by focusing on central and off-center positions during the three different positions where the measurements were taken within the radiation field. Examining the impact of varying energy levels and field sizes on the dose distribution is a crucial step toward quantifying uncertainties and fluctuations in relative Hp(10). In applications involving clinical radiation therapy, the analysis is essential for safeguarding and maximizing dose delivery.