The photoemission spectra of si 2p , hf 4f core levels , a 22ev的fermi能级变化也被观察到了。
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Studies on digital photoemission test set 数字光电效应实验仪的设计
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Quanta discussion of photoemission 光电效应的量子解释
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From the studies of the methods of photoemission , capacitance and ultrasonic to detect the air in the transfusion pipe , the best way to detect the air is the use of ultrasonic 通过比较光电式、电容式和超声波式三种对输液过程中空气的检测方法,可知超声波检测法为输液管内空气检测的理想方法。
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The company develops series products of the catv photoemission equipment and the light receiving equipment and most early obtains the certificate to enter the net from original bureau of broadcast and tv 公司开发生产的catv光发射设备、光接收设备系列产品最早获得原广电部入网证书、被国家科委评为高科技新产品。
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Based on campus network , utilize dreamweaver , java , flash , smartdraw , photoshop and so forth tools and languages , author practices in creating intuitionistic , cognitive , problematical , synergic and creative contexts by a case of photoemission knowledge 在校园网环境下,作者利用dreamweaver 、 java 、 flash 、 smartdraw 、 photoshop等工具或语言,以光电效应知识为例,进行了直观情境、认知情境、问题情境、协作情境和创作情境的创设实践。
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With the aid of baffle movement , a technique named masking pretreatment and the method of vacuum deposition have been used to fabricate the ag - o - cs photoemissive thin films with internal field - assisted structure for the first time . the internal field - assisted photoemission characteristics of ag - o - cs thin films show that the photoelectric sensitivity is increased when the internal electric field is applied to the thin films , which indicates that the electric field has been effectively provided to the thin films by the above - mentioned internal field - assisted structure . such an enhanced photoemission is attributed to the variations in energy - band structure of ag - o - cs thin films , and which are considered to induce the lower - energy electrons to participate in the photoemission 通过掩膜预处理和挡板转移技术的配合,利用真空沉积方法首次制备了内场助结构ag - o - cs光电发射薄膜。 ag - o - cs薄膜内场助光电发射特性测试结果表明,该方法能够有效地实现ag - o - cs薄膜体内电场的加载与表面电极的引出,薄膜光电灵敏度随内场偏压的增大而上升。 ag - o - cs薄膜在内场作用下的光电发射增强现象与薄膜体内能带结构变化低能电子参与光电发射等物理机制有关。
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( 2 ) on - line spectral response measurement is used to make a research on the activation process . the on - line measurement results have been analyzed and the influence excised by cs , o activation on the photoemission property of gaas wafers has been revealed . the properties of domestic and foreign nea phocathodes are compared , and the reasons causing the gap between domestic and foreign phocathodes are discussed ( 2 )利用光谱响应在线测试技术研究nea光电阴极的激活工艺,通过对在线测试的光谱响应曲线进行分析、比较和计算,剖析了激活工艺给阴极光电发射性能带来的影响,并从性能评估的角度,比较了国内外nea光电阴极的性能,分析了它们之间存在差距的原因。