AN INVESTIGATION ON THE NON-INTERCEPTING GRIDDED ELECTRON GUN WITH A SHADOW GRID EMBEDDED IN CATHODE
嵌镶式无截获栅栅控电子枪的研究

A kind of non-intercepting gridded gun is described, in which an annular grid-mesh type shadow grid is immediately embedded in the cathode. A simplified two-dimensional ma-thematical model is presented for computer aided design. Through investigation of the resu-Its of this computation a method of designing such a gun is presented. An experiment on a non-intercepting gridded gun with a perveance of 0.9 μP is carried out. The obtained resu-Its prove that the computer program proposed here satisfies fully the design demand of this kind of non-intercepting gridded gun.