【作者】 任荆学； 尤大伟；

【Author】 Ren jingxue,You dawei (Center for Space Science and Applied Research , Chinese Academy of Sciences)

【机构】 中国科学院空间科学与应用研究中心；

【摘要】 本文对广泛应用于考夫曼离子源和霍尔离子源的直热式阴极,在相同的放电条件下,分别在直流(DC)、工频交流(50Hz)和高频交流(10KHz)电源的驱动下的使用寿命和损坏情况进行了大量的实验,得出了相应的规律。同时又对在不同电源驱动下热阴极的工作过程进行了分析,对实验得出的规律进行了解释。最后给出了热阴极驱动电源的简单选择原则。更多还原

【Abstract】 Filament cathode has been widely applied to Kaufman ion source and hall ion source. In same conditions, filament was respectively heated by direct current, alternating current(50Hz) and high-frequency alternating current(10KHz) power supply, a lot of experiments that ware about filament’s service lifetime and damage situation have been done, and the corresponding laws ware obtained. Than, ion source’s work processes that filament is heated by different type supply ware analyzed, the laws ware explained. Finally, a simple principle of choice supply type to heat filament was given.更多还原