有效剂量的转换系数是使用具有FLUKA代码的人类形状网状参考幽灵计算的
Davide Bozzato1, Francesco Cerutti2, Robert Froeschl3
1CERN, Geneva, GE, SWITZERLAND.
概括
FLUKA蒙特卡洛代码现在使用ICRP出版物145网状幻影来计算有效剂量 (E). 这一进步支持准确的辐射防护剂量测量,用于未来国际辐射保护委员会建议.
科学领域:
- 医学物理 医学物理
- 辐射剂量计 辐射剂量计
- 计算物理 计算物理
背景情况:
- 国际辐射保护委员会 (ICRP) 在145.出版物中介绍了新的基于网格的计算幻象.
- 以前的剂量测量计算通常依赖于基于voxel的幻影 (例如,ICRP出版物116).
- 精确的剂量测量对于在各种暴露场景中进行辐射保护至关重要.
研究的目的:
- 为了实施ICRP出版物145网格幻象在FLUKA蒙特卡洛代码内.
- 使用这些新的幻影计算从粒子流动到有效剂量 (E) 的转换系数.
- 用先进的幻影模型验证FLUKA对有效剂量计算的能力.
主要方法:
- 实施ICRP出版物145网格幻象在FLUKA. 的实施.
- 计算各种粒子和能量转换系数的计算.
- 在六种标准辐射几何体 (AP,PA,RLAT,LLAT,ROT,ISO) 下模拟广单能粒子束.
- 结果与现有的voxel幻影数据 (ICRP 116) 和Geant4计算进行比较.
主要成果:
- 在FLUKA成功实施了网状幻影.
- 为各种粒子,能量和几何形状生成的转换系数的综合数据集.
- 使用新的网状幻象,FLUKA证明了可靠的有效剂量计算.
- 结果显示与其他验证的代码和以前的幻影数据有很好的一致性.
结论:
- FLUKA蒙特卡洛代码是使用ICRP网状幻影进行有效剂量计算的验证.
- 这种能力使FLUKA成为未来辐射保护建议的合适工具.
- 预计在即将到来的ICRP指南中,网状幻象将取代voxel幻象.
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