| 1. | The signal generating source is simplified after the theoretical analyse of the system , and the cumbersome transformer is replaced too . in addition , the carbon fiber cathode substituted for the stainless steel cathode on the tomachan experimental device 在二极管阴极方面,为提高虚阴极振荡器束波转换的效率,利用碳纤维阴极替换原来的不锈钢阴极来改善电子束质量。 |