透射式負電子親和勢Ⅲ-Ⅴ族化合物光陰極工作波段的設(shè)計問題
PROBLEMS IN DESIGNING THE WAVELENGTH RANGE OF THE TRANSMISSION NEA III V COMPOUND PHOTOCATHODES
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摘要: 正 (一)前言 在常用的光陰極(Ag-O-Cs,Sb-Cs,Sb-K-Na-Cs)中,每一種光陰極均有其光譜響應(yīng)曲線(工作波段)。各種光陰極的光譜響應(yīng)曲線的形狀各異,閾(長波截止波長)也各異。但短(短波起始波長)則取決于窗口玻璃材料對短波波長的透過率?？傊?常用光陰極的光譜響應(yīng)曲線隨光陰極的材料而異,是無法預(yù)先設(shè)計的
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關(guān)鍵詞:
Abstract: Transmission NBA Ⅲ-Ⅴ compound photocathodes may be designed in some cases. This article gives the design principles, design requirements, design procedure and compositional structure, and then gives an example of designing transmission InxGa(1-x)As photocathode in the 0.4-1.1m wavelength. Finally, some problems which have to be resolved for the transmission Gay In(1-y)AsxP(1-x), photocathode in the 0.4-1.7m wavelength are pointed out. -
C.J. Nuese, J. Electronic Materials 6(1977), 253.[4]G.A. Antypas, J. Edgecumbe, Appl. Phys. Let, 26(1975), 371. -
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