Physical Analysis for the Design of Medical Radiological Shielding Facilities: Monte Carlo Simulation; 의료방사선 방어시설 설계를 위한 물리적 해석 연구: 몬테칼로 시뮬레이션

초록

Diagnostic radiation shielding facilities provide radiation protection, comprising various components such as radiation shields and patient-viewing windows. Lead, the primary material used in these structures, may pose health risks to humans due to oxidation, cracking, and aging. This study employed Monte Carlo Simulation to appraise the shielding performance by altering the composition of lead sheets and lead glass. We conducted simulations for peak tube voltages of 80 and 120 kVp. As the lead oxide content in the lead sheet increases, the shielding performance decreases by up to 10%. Additionally, as the crack’s size increases, the leakage dose increases by approximately 7%. Moreover, the reduction in the lead oxide proportion of the lead glass resulted in diminished shielding performance. The findings regarding radiation attenuation rates in this study are considered valuable data for future assessments of radiation shielding facilities’ aging. © 2024 Korean Physical Society. All rights reserved.

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