A Fano cavity test was implemented in GEANT4 Monte Carlo code to evaluate the alpha particle transport algorithm. GEANT4 alpha emission data for ²¹²Pb, ²²³Ra, ²²⁷Th, and ²²⁵Ac was compared with the MIRD and RADAR decay databases. Optimal electromagnetic transport parameters (dRover of 0.1 and final range of 1 μm) were recommended since the calculated results with the default parameters differed up to 4.7% from the theoretical results. Good agreement was found between the three decay databases besides a few discrepancies.

中文翻译：

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α粒子剂量测定的GEANT4传输算法和放射性衰变数据的评估

在 GEANT4 Monte Carlo 代码中实施了 Fano 腔测试以评估 alpha 粒子传输算法。将²¹² Pb、²²³ Ra、²²⁷ Th 和²²⁵ Ac 的GEANT4 α 发射数据与 MIRD 和 RADAR 衰减数据库进行了比较。推荐最佳电磁传输参数（dRover为 0.1，最终范围为 1 μm），因为使用默认参数的计算结果与理论结果的差异高达 4.7%。除了一些差异之外，在三个衰减数据库之间发现了良好的一致性。