引言许多年来,一直需要寻求一个量测阴极激活的好方法。本文描述了一个量测阴极激活的新方法,称为“降落试验”。虽然它是与行波管的设计共同发展来的,然而它本身却有着更广泛的应用。一个最有用的测量激活的方案应该是快、可以重复和灵敏。而且希望在管子正常运用 Introduction For many years there has been a need to find a good way to measure cathode activation. This article describes a new method of measuring cathodic activation called the “drop test”. Although it is developed together with the design of traveling wave tube, it has a wider application in itself. One of the most useful measures to activate a program should be fast, repeatable, and responsive. And hope that the normal use of the pipe