This model suggests that an aggregate of atoms with excess barium absorbed on alkaline earth oxides can emit electrons efficiently, which can explain many phenomena observed by modern surface analysis techniques.

• 此模型提出了碱土金属氧化物原子团吸附有超额钡,可以有效地发射电子。 这观点能解释许多用近代表面分析技术从氧化物阴极中观察到的现象。