The three-dimensional Monte-Carlo impurity transport and plasma surface interaction code ERO2.0 is applied to a full-torus model for the Large Helical Device (LHD). In order to find an optimum experimental condition for effective real-time wall conditioning (boronization) using an Impurity Powder Dropper (IPD), the toroidal and poloidal distribution of the boron flux density on the divertor components and the vacuum vessel are surveyed in various experimental conditions. The source profile of the neutral boron atoms originated from boron powders supplied from the IPD is calculated using the DUSTT code in background plasmas provided by the EMC3-EIRENE code. The simulations using ERO2.0 predict that higher plasma density operation is inappropriate for the effective wall conditioning because of the toroidally localized boron flux density in a closed helical divertor region. The ERO2.0 simulations have successfully revealed an optimum experimental condition for the wall conditioning with the toroidally uniform boron flux density in the closed helical divertor region.

三维蒙特卡洛杂质传输和等离子体表面相互作用代码ERO2.0被应用于大型螺旋装置（LHD）的全托勒模型。为了找到使用杂质粉末滴管（IPD）进行有效的实时墙面调节（硼化）的最佳实验条件，在各种实验中调查了硼通量密度在分流器组件和真空容器上的环面和多面体分布条件。使用DEMTT代码在EMC3-EIRENE代码提供的背景等离子体中计算源自IPD提供的硼粉的中性硼原子的源分布。使用ERO2进行的模拟。0预测较高的等离子体密度操作不适用于有效的壁调节，因为在封闭的螺旋形偏滤器区域中存在环形局限的硼通量密度。ERO2.0模拟已成功地揭示了在封闭的螺旋形偏滤器区域中使用环形均匀的硼通量密度进行壁调节的最佳实验条件。