The technology for producing metal ceramic (MC) plates is described. It was shown that application of the MC cathode allows one to increase the beam power by a factor $\sim$1.5 and the current by a factor of 2, compared to metal–dielectric cathodes. It has been found that the emission properties of the MC cathode can be controlled by changing the composition of the MC plate as well as by changing the geometric form of the MC plate.

Namely, the rectangular MC plate produces a uniform potential distribution on its surface and it results in faster ignition of the surface flash-over which uniformly covers the cathode surface. This leads to a more uniform electron emission distribution. The latter results in significantly higher (>2 times, up to 20 A/ns) rate of the current increase. In addition, no visible damage of the MC surface was found after 10⁶ shots indicating a potentially long lifetime of such type of cathodes.

描述了用于生产金属陶瓷（MC）板的技术。结果表明，使用MC阴极可以使光束功率增加一倍$〜$与金属电介质阴极相比，电流为1.5，电流为2。已经发现，可以通过改变MC板的组成以及通过改变MC板的几何形状来控制MC阴极的发射特性。

即，矩形MC板在其表面上产生均匀的电势分布，并导致更快地点燃均匀覆盖阴极表面的表面闪络。这导致更均匀的电子发射分布。后者导致电流增加率明显更高（> 2倍，最高20 A / ns）。另外，在10 ⁶次发射后未发现MC表面的可见损伤，表明此类阴极的使用寿命可能较长。