核电厂辐照计量实验室内散射剂量率计算研究

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Study on Scattering Dose Rate Calculation in Radiation Measurement Laboratory of Nuclear Power Stations

摘要: 采用蒙特卡罗方法计算核电厂辐照计量实验室的γ射线辐照装置中准直器、刻度小车、刻度盘和四周墙壁散射辐射的剂量率。结果表明,参考点处散射剂量率贡献最大的是准直器的散射射线,散射射线产生的剂量率不超过总辐射剂量率的3%,满足ISO4037-1-1996和GB/T12162-1-2001的规定和要求。
- 辐照计量 /
- 准直器 /
- 蒙特卡罗 /
- 散射辐射
Abstract: In this paper, using Monte Carlo method for calculating the dose rate of scattering which rooted in calibration trolley, dial, around wall and collimator of the γ radiation facility in the Radiation Measurement Laboratory of one nuclear plant. The results showed that the maximum contribution of scattering dose rate at reference point is the scattered ray of collimator, and that the dose rate of scattered ray is less than 3% of total radiation dose rate. The result satisfies the regulations and requirements of ISO4037-1-1996 and GB/T12162-1-2001.
- Radiation Measurement /
- Collimator /
- Monte Carlo /
- Scattering Radiation.