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Photocathode, electron tube, and photomultiplier tube
Photocathode, electron tube, and photomultiplier tube
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机译:光电阴极,电子管和光电倍增管
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摘要
In the photocathode, an underlayer made of a crystalline material containing La2O3 is provided between a supporting substrate and a photoelectron emission layer, and is in contact with the photoelectron emission layer. Therefore, for example, at the time of heat treatment in a manufacturing process of the photocathode, dispersion to the supporting substrate side of an alkali metal contained in the photoelectron emission layer is suppressed. Further, it is assumed that this underlayer functions so as to reverse the direction of, out of photoelectrons e− generated within the photoelectron emission layer, photoelectrons traveling toward the supporting substrate side to the side opposite thereto.
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机译:在光电阴极中,由包含La 2 Sub> O 3 Sub>的晶体材料制成的底层设置在支撑基板和光电子发射层之间,并与光电子发射接触。层。因此,例如,在光电阴极的制造工序中进行热处理时,可以抑制光电子发射层中所含的碱金属向支撑基板侧的扩散。此外,假定该底层起到使在光电子发射层内产生的光电子e - Sup>中朝着支撑基板侧向与其相反的一侧行进的光电子的方向相反的作用。
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