The tilted electric field soft-landing collector and its application to a traveling-wave tube

If a collector in a beam-type tube captures all the electrons at almost zero velocity, the tube efficiency will approach unity. Such a collector might be called a soft-landing collector. This paper describes the principle, design theory, preliminary experimentation, and application of a new type collector in which an almost complete soft landing can be realized. The experimental TWT equipped with this collector achieved an efficiency improvement from 19 to 46 percent.