Application of advanced Monte Carlo Methods in numerical dosimetry

Area of Science:

• Medical Physics
• Radiation Physics
• Computational Physics

Background:

• Dosimetry tasks are complex and sensitive to radiation field variations.
• Simulating radiation transport is essential for a complete understanding of radiation fields.
• Secondary electron cascades are key to sub-cellular damage induction.

Purpose of the Study:

• To introduce the efficient non-analogue Monte Carlo program, AMOS, for photon and electron transport.
• To demonstrate the capabilities of AMOS through various applications and benchmarks.
• To validate AMOS for specific dosimetry applications in radiotherapy and radiation protection.

Main Methods:

• Development of the AMOS (Advanced Monte Carlo Simulation) program for non-analogue photon and electron transport.
• Application of AMOS for calculating brachytherapy source radiation fields per AAPM/TG43.
• Utilizing AMOS for detector efficiency calculations (e.g., HPGe detectors) and X-ray shielding dose estimations.

Main Results:

• AMOS demonstrates efficient and accurate simulation of photon and electron transport.
• Calculations for brachytherapy sources align with established dosimetry protocols (AAPM/TG43).
• Validated performance in detector efficiency and radiation shielding dose estimation.

Conclusions:

• AMOS is a capable tool for complex radiation transport simulations in dosimetry.
• The program's efficiency and accuracy are suitable for radiotherapy and radiation protection.
• AMOS provides reliable results for benchmarked dosimetry applications.