photocathode
英[fəʊtəʊ'kæθəʊd]
美[ˌfoʊtoʊ'kæθoʊd]
- n. 光电阴极
详细释义
Noun:
-
a cathode that emits electrons when illuminated
双语例句
- 1. Why does the photocathode through the millennium, but it will continue to be so poignant?
- 为什么穿越千年的光阴，却依然会是如此凄美？
youdao
- 2. With good light collection, about 30% of the luminescence quanta may reach the photocathode.
- 在良好的光收集条件下，约30%的荧光量子可以到达光阴极。
youdao
- 3. With good light collection, about 30 % of the luminescence quanta may reach the photocathode.
- 在良好的光收集条件下，约30%的荧光量子可以到达光阴极。
youdao
- 4. The high sensitive photocathode and good spectral response depend on processing technologies.
- 高灵敏度的光电阴极以及好的光谱响应是由处理工艺来决定的。
youdao
- 5. The effect of the tube making Technique on the photoemissive property of the photocathode is described.
- 主要论述制管工艺对光电阴极发射性能的影响。
youdao
- 6. Finally, the advantages of MCP used as UV photocathode and the applications of both systems are emphasized.
- 最后强调指出MCP作为紫外光电阴极时的优点和两种系统的应用。
youdao
- 7. When light enters the photocathode of a photomultiplier tube, photoelectrons are emitted from the photocathode.
- 当光线进入光电阴极的光电倍增管，光电子从阴极发出。
youdao
- 8. The monochromatic photocurrent of photocathode actually reflects its quantum yield under the monochromatic light.
- 多碱光电阴极的单色光电流实质上反映的是其在该单色光照射下的量子产额。
youdao
- 9. The design of an rf cavity consisting of 1 1/2 cells for a high -brightness SC photocathode injector is presented.
- 对高亮度1 1/2超导腔光阴极注入器进行了腔形的概念研究设计。
youdao
- 10. The thickness of transmission-mode photocathode affects directly its photoelectric efficiency and spectral response.
- 透射式光阴极的厚度，直接影响光阴极的光电子发射效率和光谱响应。
youdao
- 11. Looked up, the sun has moved over to my windowsill, tomorrow's photocathode where there will not be present frame of mind.
- 抬眼，阳光已移过我的窗台，明天的光阴里，不会再有现在的心绪。
youdao
- 12. The closer the measuring reflectance curve to the theoretical reflectance curve, the higher a photocathode sensitivity is.
- 多碱阴极的实测反射率曲线越接近理论曲线，其灵敏度也越高。
youdao
- 13. The photocathode consists of a substrate (involving a conductive base film for dielectric cathode) and a photoemission film.
- 光阴极由衬底(包括介质阴极的导电基底)和光电发射膜构成。
youdao
- 14. It is very difficult to measure precisely the surface temperature of a photocathode in a vacuum system during the thermal cleaning.
- 然而，在热清洗过程中对处在真空系统中的光电阴极表面温度进行精确测量却是非常困难的。
youdao
- 15. The effect of hot cleaning and ion cleaning for photocathode glass substrate on improving the photocathode sensitivity is researched.
- 论文探索了光阴极玻璃基底的热清洁和离子清洁对提高光阴极灵敏度的影响。
youdao
- 16. This paper describes an effective improvement of the emissive properties of the Ag-O-Cs photocathode by repeating evaporation silver.
- 本文叙述了复蒸银对银氧铯阴极发射性质的改进。
youdao
- 17. This paper describes an effective improvement for the emissive properties of the Ag-O-Cs photocathode by repeated evaporation of silver.
- 叙述了复蒸银对银氧铯阴极发射性质的重大改进。
youdao
- 18. To obtain high average current electron beams for high average power Free Electron Laser (FEL), a DC-SC photocathode injector is designed.
- 为获得用于高平均功率自由电子激光（FEL）的高平均流强电子束，设计了一种新型的DC- SC光阴极注入器，并对其进行了优化设计和束流动力学研究。
youdao
- 19. It is shown from the analysis of surface tension that the hot and ion cleaning of photocathode glass substrate can increase the certain degree.
- 通过表面张力分析，证明对光阴极玻璃基底进行热清洁和离子清洁可以增加玻璃表面的表面能，对提高光阴极的灵敏度有一定的作用。
youdao
- 20. In the surface analysis and the manufacture of photocathode the cesium ion source shows some advantages as compared with the neutral cesium source.
- 在光电阴极的制备及对光电阴极作表面分析中，铯离子源较中性铯源具有一定的优点。
youdao
- 21. In this paper, the relationships between the thickness and the optical absorption of photocathode and the escape depth of photoelectron are discussed.
- 本文讨论了光学吸收和光电子逸出深度与多碱光阴极厚度的关系；从理论上分析了透射式多碱光阴极的最佳厚度。
youdao
- 22. The gain of the PMT, that is the ratio of anode output current to the photoelectric current from the photocathode, is directly related to the supply voltage.
- 光电倍增管的增益，是阳极输出电流和光电阴极中光电流的比值，直接关系到电源电压。
youdao
- 23. It is shown from the analysis of glass ingredients of different glass substrates that the alkali metal content in glass may affect the photocathode sensitivity.
- 通过不同玻璃基底玻璃成分的研究，证明玻璃中的碱金属的含量会影响到光阴极灵敏度的高低。
youdao
- 24. Some double crystal rocking curves of photocathode epitaxy materials and substrates are measured by means of X-ray double crystal diffraction in the bonding process.
- 用X射线双晶衍射仪测量了阴极和玻璃热粘结工艺过程中阴极材料外延层和衬底的双晶回摆曲线。
youdao
- 25. The optimum thickness of transmission-mode photocathode is analysed theoretically, and the methods for monitoring and determining the optimum thickness are proposed.
- 并提出了确定最佳厚度的监测和计算方法。 最后给出了多碱光阴极在几个给定工作波长的最佳厚度。
youdao
- 26. With the proximity focused diode image intensifier coupled to a low luminance el display, and a photocathode instead of a field-emitter, a new photocathode display is developed.
- 详述了近贴聚焦二极管像增强器与低亮度矩阵el显示屏耦合，用光电阴极代替场发射电子，开发出一种新型显示器。
youdao
- 27. The photocathode composition determines the spectral response, the quantum efficiency at each wavelength, the overall uniformity of photomultiplier sensitivity, and the dark current.
- 光电阴极的构成决定光谱响应、每种波长的量子效应、光电倍增管灵敏度的均一性和暗电流。
youdao
- 28. The precept of DC-SC photoinjector is to combine a DC photocathode electron gun and the superconducting cavity together. This scheme is specially adequate to provide the high average beam current.
- DC SC超导光阴极注入器将直流光阴极电子枪和超导加速腔结合在一起，其特点之一是适合于提供高平均流强电子束。
youdao
- 29. The activation results of MBE GaAs photocathode are strongly affected by the system vacuum pressure, and with which the preparing technique of MBE varied doped photocathode should be adjusted along.
- MBE阴极激活结果受系统真空度条件影响较大，因此对MBE变掺杂光阴极的制备工艺应随系统真空度条件不同而调整。
youdao
- 30. The activation results of MBE GaAs photocathode are strongly affected by the system vacuum pressure, and with which the preparing technique of MBE varied doped photocathode should be adjusted along.
- MBE阴极激活结果受系统真空度条件影响较大，因此对MBE变掺杂光阴极的制备工艺应随系统真空度条件不同而调整。
youdao
- The effect of the tube making Technique on the photoemissive property of the photocathode is described.
主要论述制管工艺对光电阴极发射性能的影响。
用作名词 (n.)
用法讲解
- continuous photocathode 密集光电阴极...
- alloy photocathode 合金光电阴极...
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