摘要
该文根据光电阴极的量子产额谱，导出了光谱响应Ｓ（λ），通过选择合适参数，计算的Ｓ２０光谱响应曲线与实验基本吻合。该文也分析了阴极厚度Ｄ，阴极结构参量Ｐ，光电阴极光谱响应截止波长λ＿ｊ和光电子逸出深度Ｌ对Ｓ（λ）的影响，认为Ｄ、Ｐ和λ＿ｊ是决定Ｓ２０阴极性能的主要因素。
In this paper,a formula of spectral response S(λ)is derived with the quantum yield of multialkali photocathodes.The S(λ)of S20 photocathodes is calculated by choosing suitable parame-ters. The calculation results are in good agreement with experimental data of S20 photocathodes. The influence of photocathode thickness D,photocathode structure parameter P, spectral response cut-off wavelength λj and photoelectron escape depth L on S(λ)is discussed. It is considered that D,P and λj are decisive factors featuring S20 pho-tocathodes.
出处
《南京理工大学学报》
CAS
CSCD
1994年第1期47-50,共4页
Journal of Nanjing University of Science and Technology
关键词
光电阴极
量子产额
光吸收
光谱
photocathode
quantum yields
light optical absorp-tion
structure parameter
