本文描述了具有簡单結构的电子槍和描述了对于大电流密度的实心或空心錐形电子流建立的詳細分析。給出了这些电子槍的計算方法,以及按着給定的电子束参数来确定电子槍电极尺寸的图組。槍工作在阴极电压为零的条件下。在經过阳极小孔时,要有98—100%的电子束电流通过。这些槍可以在行波管、速調管以及其他要求功率的实心或空心电子束的器件里应用。 This article describes electron guns with a simple structure and a detailed analysis describing the establishment of a solid or hollow conical electron flow for high current densities. The calculation methods of these electron guns are given, as well as the chart group for determining the electron gun electrode size according to the given electron beam parameters. The gun works at a cathode voltage of zero. 98-100% of the beam current passes through the anode aperture. These guns can be used in traveling wave tubes, klystrons and other devices requiring solid or hollow electron beams for power.