Studying Factors Affecting Indoor Gamma-radiation Dose using Mcnp5 Simulation Software-revisited: Adding Two More...

Area of Science:

• Radiation Physics
• Computational Modeling
• Nuclear Engineering

Background:

• Gamma-radiation dose rates in enclosed spaces are influenced by various physical parameters.
• Accurate estimation is crucial for radiation protection and shielding design.
• Existing models often simplify or omit complex room geometries.

Purpose of the Study:

• To enhance a simulation model for estimating gamma-radiation dose rates within rooms.
• To investigate the impact of previously studied factors (detection point, room dimensions, wall thickness, material density).
• To introduce and analyze two novel factors: the presence of adjacent rooms and segmented walls.

Main Methods:

• Development of a simulation model for gamma-radiation dose rate calculation.
• Utilized Monte Carlo N-Particle (MCNP) simulation software for calculations.
• Performed relative dose rate calculations across a range of parameter values.

Main Results:

• The simulation model successfully integrated previously identified dose rate influencing factors.
• Introduced and quantified the impact of a neighboring room on internal dose rates.
• Assessed the effect of a wall divided into two portions on radiation attenuation.

Conclusions:

• The refined simulation model provides a more comprehensive tool for dose rate estimation.
• Neighboring rooms and split walls are significant factors affecting internal gamma radiation exposure.
• The study contributes to improved radiation shielding strategies in architectural and nuclear applications.