Monte Carlo Investigation of Field Size Effects on Central-Axis Dose Distributions (PDD Curves) and Lateral Dose Profiles

Key Points

• This research aims to explore how field size influences central-axis dose distributions and lateral dose profiles in radiotherapy.
• Utilized Monte Carlo simulations to analyze dose distributions.
• Examined the effects of various field sizes on PDD curves and surface dose.
• Performed comparative analysis of dose profiles based on field size.
• Field size was found to significantly affect PDD curves.
• Surface dose varied notably with different field sizes.
• The findings support the need for optimization in radiotherapy treatment techniques.