光电阴极

The optical processes of alkali antimonide photocathodes are investigated.

本文研究了碱锑型光电阴极的光学过程。

The reasons that the research of NEA photo-electric cathode in our country lags greatly behind the other foreign countries which possess the advanced technologies mainly lie in the following facts: besides the lack of enough investment in this field and the draggle of relative technique on the NEA , t...

我国NEA光电阴极的研究距离国外先进水平差距较大，寻其原因除了资金投入不足，相关技术落后等因素外，缺乏对每一环节有效的测试分析手段和监测控制方法是制约我国阴极发展缓慢的一个重要原因。

At the same time, the electron energy distribution of NEA photocathode has been calculated. In chapter 3, the development of the dynamic spectral response measurement system is introduced in detail.

根据国内外NEA光电阴极的研究现状，提出了国内在NEA光电阴极研制方面存在的问题，阐述了本文的研究背景和意义。

The spectral response performance of transmission-mode GaAs photocathode after high-temperature activation and low-temperature activation was measured by the use of on-line spectral response measurement technology, and the integral sensitivity and spectral response performance parameters of the GaAs photocathode after high-temperature activation and low-temperature activation were compared.

利用在线光谱响应技术，对透射式GaAs光电阴极在高温激活和低温激活后的光谱响应特性进行了测试，计算并比较了高温激活和低温激活后阴极的积分灵敏度和光谱响应特性参数。

Using the theoretical knowledge of spectral response and property evaluation way, the on-line measurement results are analyzed and some conclusions are obtained. The properties of domestic and foreign NEA phocathodes are compared, and the reasons causing low performance of domestic NEA photocathodes are discussed.

第四章首先介绍了评价NEA光电阴极特性的参量，包括参量的意义、测量方法及当前NEA光电阴极的参量水平，在此基础上阐述了NEA光电阴极性能评估的实现方法和途径，最后简介了NEA光电阴极性能评估实验系统的设计和研制。

The invention is characterized in that: the ultraviolet flame sensor comprises a uviol piece, a meshed anode which is arranged on the uviol piece, a cathode substrate glass piece, a photocathode which is arranged on the cathode substrate glass piece, a glass ring which is arranged between the cathode and the anode, a vacuum orifice which is arranged on the glass ring, a plastic packaged base which is arranged under the cathode substrate glass piece, a cathode and an anode lead which are adhered to the plastic packaged base and are respectively connected with the cathode and the anode, and a plastic casing which is arranged around the plastic packaged base, the glass ring and the glass piece.

其特征在于，其中包括：透紫玻璃片；网状阳极，该阳极层制作在透紫玻璃片上；阴极衬底玻璃片；光电阴极，该层制作在阴极衬底玻璃片上面；玻璃环，该玻璃环制作在阴极和阳极中间；抽真空口，该抽真空口制作在玻璃环上；塑封底座，该底座制作在阴极衬底玻璃片下面；阴极和阳极引出线，该引出线粘接在塑封底座上，分别与阴极和阳极相连接；塑料外壳，该外壳制作在塑封底座，玻璃环和玻璃片周围。

In this paper the photocathode and micro channel plate, the two key factors affecting image intensifier operational life, are also analyzed in detail and are listed the life test methods in night vision ind...

通过对国内外加速寿命试验和像增强管工作寿命试验方法的分析借鉴，结合我们二代近贴管二十多年的生产试验，特别是超二代管工作寿命试验积累的宝贵经验，本文提供了一种加速试验方法，在保证像增强管阴极灵敏度稳定性的前提下，采用一个对光电阴极影响最大的应力加倍的方法，以缩短工作寿命试验时间，减少生产周期以保证交货进度。

To achieve high quantum efficiency and good stability has been a main direction to develop GaAs photocathode recently.

获得高量子效率且稳定性良好的阴极一直是近年来发展GaAs光电阴极的重要方向。

Variations of spectral response curves of GaAs photocathode with time were obtained,and performance parameters of decayed photocathode were calculated.

利用光谱响应测试仪对激活后的反射式GaAs光电阴极进行了稳定性测试，获得了阴极随时间变化的光谱响应曲线，并表征了阴极在衰减过程中的性能参数变化。

This paper discusses how to use a quadrupole mass spectroscope to analyzed the whole process of thermal cleaning before the activeness of GaAs photocathode,thus the temperature and technique of the optimal thermacleaning is determine.

本文采用四极质谱仪对GaAs光电阴极激活前的热清洗过程进行分析。确定了最佳的热清洗温度及热清洗工艺，较好地解决了GaAs光电阴极激活前的热清洗工艺问题。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。