electron emission中文什么意思

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用"electron emission"造句

电子发射
电子放出
电子放射

electron: n. 【物理学】电子。 the electron bea ...
emission: n. 1.(光、热、气体等的)发出，发射，射出，放射；传 ...
emission electron: 发射电子
auger electron emission: 俄歇电子发射
back emission electron radiography: 反向发射式电子射线照相

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According to secondary electron emission avalanche ( seea ) theory , the effects of insulating materials , shapes , electrode structures of vacuum insulator on surface flashover and its mechanism , design optimization methods for vacuum insulator to improve surface flashover voltage by selecting insulating material , shape and electrode structure are reviewed
摘要根据二次电子发射崩( seea )理论，综述了真空绝缘子的绝缘介质材料、几何形状和电极结构对绝缘子沿面闪络的影响和机理过程，以及从这三方面优化设计真空绝缘子以提高其沿面闪络电压的方法。
In this paper , such three points are studied as : a ) the angular distributions of the hot electrons emission under laser irradiation at different incidence angles and at different polarization direction , the angular distribution of the hot electrons in the different energy range , and the effects of laser prepulse on the angular distributions of the hot electrons emission ; b ) the energy distribution of the hot electrons at different directions , from the metallic targets and the dielectric targets , in the different energy range of the hot electrons , and the effects of the atomic number z on the energy distribution of hot electron generated by the metallic targets ; and c ) the energetic proton emission resulting from the interaction of the us - ui laser pulse with plasma
本论文进行了三个方面的研究：第一，超热电子角分布的研究，包括不同激光入射角下超热电子的角分布；激光不同偏振态下超热电子的角分布；激光预脉冲对超热电子角分布的影响；不同能段的超热电子的角分布。第二，超热电子能量分布的研究，包括不同方位超热电子的能量分布，金属与非金属靶材的超热电子的能量分布，金属原子序数z对超热电子能量分布的影响以及不同能段超热电子的能量分布。第三，研究了超短超强激光与固体靶相互作用所产四川大学博士学位论文生的高能质子发射和能谱。
So re oxides has two form existence , one is concentrate on the matrix equiaxial crystal grain boundary as a micron particles and the other is distributed in matrix crystal dispersively as the nanometer particles compared the electron emission performance of mo - la2o3 , mo - ; la2o3 - y2o3 and mo - la2c > 3 - sc2o3 cathode , the mo - la2o3 - sc2c > 3 cathode show excellent electron emission character
上述研究表明不论是在稀土?钼阴极还是在稀土?钨电极中，稀土氧化物的存在形式有两种，一种是微米级的颗粒偏聚于晶界处，另外一种是弥散分布于基体晶粒的纳米小颗粒。
The factors which influenced the process include the insulator ' s material , structure , the distribution of space electrical field , the way to deal with the surface , the characteristic of voltage waveform , pulse width etc . there are two kinds of theory for the vacuum surface flashover : secondary electron emission avalanche ( seea ) and electron triggered polarization relaxation ( etpr )
影响该过程的因素包括绝缘材料结构、空间电场分布、表面处理方法、所加电压特征，脉冲宽度等。研究真空表面闪络过程有两类理论：二次电子发射崩溃( seea )和电子引发极化松弛( etpr ) 。
This research has studied the microstructure of cathode materials systematically by the means of high resolution transmission electron microscopy and scanning electron microscopy , surveyed the electron emission performance of la2o3 , - mo , la2o3 - y2o3 - mo , la2o3 - sc2c > 3 - mo cathode with the self - designed electron emission surveyor and analyzed the elements changing of the surface of mo - la2o3 - sc2c > 3 cathode in - situ . while it was heated to different temperature . at last , the relationship of the microstructure of cathode , diffusion of active matter and electron emission performances has been discussed
本研究采用高分辨扫描电镜、透射电镜对稀土钼钨阴极材料的显微结构进行了系统研究；利用本课题研究组设计研制的电子发射测量仪对la2o3 - mo ， la2o3 - sc2o3 - mo ， la2o3 ? y2o3 - mo三种阴极(以下称镧?钼阴极、镧钪?钼阴极、镧钇?钼阴极)的发射性能进行了测量；利用经改造后的俄歇电子能谱仪“原位”分析了发射性能较好的镧钪钼阴极在不同温度下表面活性元素的变化情况。