| 2. | Electron gun is the foremost parts of twt , it can produce electron beam with a certain shape and current , in order to guarantee the reliability and security of work , it ’ s design have to meet to the requirement not only of electric parameter , but also all kinds of subsidiary characteristics such as filament pyrogenation efficiency , warm up time , shape size , pole space capacitance and the ability to be able to bear the press and all kinds of rigorous run conditions such as high temperature , high humidity , low air pressure , strong vibration and great strike
由于行波管的大功率和高频率等特性,目前还没有任何其他的器件可以代替。行波管是应用高频电磁场与电子注进行互作用的机理进行工作的,而电子枪是行波管中产生电子注并使它成型的基本部件,电子枪的结构设计决定了枪体自身必须具有良好的抗振可靠性,否则结构发生共振或振动位移过量,就会导致行波管的失效。因此对行波管电子枪的研究具有非常重要的意义。 |
