The heat flux deposition on the divertor targets with neon impurity injection has been investigated for EAST tokamak with the help of three-dimensional (3D) edge transport code EMC3-EIRENE. The parameter studies of the upstream electron density, neon impurity injection flux and injected neon atom energy have been conducted to check their impacts on the extent of the toroidal asymmetry of heat load distributions. It is found that high upstream electron density leads to an effective mitigation of heat flux deposition and more significant toroidal asymmetry of heat load distribution. Further, the toroidal asymmetry of heat load distribution increases with neon impurity injection flux. However, a weak dependence of heat load distribution on the neon impurity injection energy is obtained.

借助三维（3D）边缘传输代码EMC3-EIRENE，针对EAST托卡马克，研究了通过注入氖杂质注入偏滤器靶上的热通量。已经进行了上游电子密度，氖杂质注入通量和注入的氖原子能量的参数研究，以检查它们对热负荷分布的环形不对称程度的影响。发现高的上游电子密度导致热通量沉积的有效减轻和热负荷分布的更显着的环面不对称性。此外，热负荷分布的环形不对称性随着氖气杂质注入通量的增加而增加。然而，获得了热负荷分布对氖杂质注入能量的弱依赖性。