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对电场漂移电子注入中的电子束物理、电子注入情况下托卡马克等离子体的平衡、电子注手器中的物理问题等进行了分析研究。结果表明，漂移电子束的稳定条件是外加电场必须大于电子束本身所产生的电场；为了保持等离子体环的平衡，外加电压愈低愈好；阴极的工作温度在800—1000K之间就可以满足在HT－6M托卡马克上进行该实验的要求；在采取必要的绝缘措施后，对25kV的设计电压，电子注入器的绝缘度是有保证的。
Electron beam physics in electric field drift electron injection, balance of tokamak plasma in case of electron injection, and physical problems in electronic injector are analyzed and studied. The results show that the stable condition of the drift electron beam is that the applied electric field must be greater than the electric field generated by the electron beam itself. In order to maintain the balance of the plasma ring, the lower the applied voltage, the better. The cathode operating temperature is between 800-1000K The requirements of this experiment were carried out on the HT-6M tokamak; the insulation of the electron injector was guaranteed for a design voltage of 25 kV after taking the necessary insulation measures.