Abstract MCNP and the ADVANTG code were used to analyse γ-dose rates for the future Slovenian LILW repository. Using ADVANTG’s variance reduction technique, different detailed calculations of γ-dose rates were achievable in a reasonable time, whereby the analogue MCNP simulations were accelerated up to 9500 times. We analysed the influence of different repository configurations on the annual γ-dose rates up to 150 m from the outer edge of the repository. The results show that, for all configurations of the open repository where the waste from different sources is deposited, the calculated annual γ-dose rates were lower than the prescribed limitation (20 mSv/year). By considering also the waste from the Krsko NPP, which represents the major contribution by activity and volume, the dose rates increased 698 times. By applying a 33 cm thick layer of the filling grout, the calculated dose rates dropped below the limitation.

中文翻译：

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使用 ADVANTG 分析筒仓型 LILW 储存库周围的 Skyshine γ 剂量率

摘要 MCNP 和 ADVANTG 代码用于分析未来斯洛文尼亚 LILW 存储库的 γ 剂量率。使用 ADVANTG 的方差减少技术，可以在合理的时间内实现不同的 γ 剂量率的详细计算，从而将模拟 MCNP 模拟加速到 9500 倍。我们分析了不同的储存库配置对距储存库外边缘 150 m 以内的年 γ 剂量率的影响。结果表明，对于存放不同来源废物的开放式处置库的所有配置，计算的年 γ 剂量率低于规定的限制（20 mSv/年）。考虑到 Krsko 核电厂的废物，它代表了活度和体积的主要贡献，剂量率增加了 698 倍。