The highest deposition of power and temperature is always near the cusp of the ATON-type Hall thruster. This shows that when there are electrons gathering at the cusp, the distribution of heat load will be uniform, which will potentially damage the reliability. Therefore, we optimize the magnetic field near the anode. We changed the magnetic field characteristics in the near-anode region with an additional magnetic screen, and performed numerical simulation with particle-in-cell simulation. The simulation results show that the magnetic field of the thruster with the additional magnetic screen can alleviate the over-concentration of power deposition on the anode and reduce the power deposition in the anode by 20%, while ensuring that the overall magnetic field characteristics do not change significantly.

中文翻译：

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阳极附近区域磁场对ATON型霍尔推力器阳极功率沉积影响的仿真研究

功率和温度的最高沉积始终接近ATON型霍尔推进器的尖端。这表明，当电子聚集在尖端时，热负荷的分布将是均匀的，这可能会损害可靠性。因此，我们优化了阳极附近的磁场。我们通过附加的磁屏改变了阳极附近区域的磁场特性，并通过粒子模拟进行了数值模拟。仿真结果表明，带有附加磁屏的推进器磁场可以减轻阳极上的功率沉积过度集中，并将阳极上的功率沉积降低20％，同时确保总体磁场特性不会变化很大。