透射电子显微镜呈像的方法是对物体发射万亿电子,测量它们的吸收,偏斜和能量损失。
Transmission electron microscopy creates images by shooting trillions of electrons through an object and measuring their absorption, deflection and energy loss.
分析结果表明,宽带隙平面薄膜结构用作场致电子发射阴极,具有发射电压的阈值低,发射电子的能量分布范围小等优点。
The study result shows that the planar film structure is conformable for FEE cathode, because it has low voltage threshold and small range of energy distribution of the emitted electrons.
采用理论分析和粒子模拟的方法研究了阴极发射电子初始能量和二维效应对二极管空间电荷限制流的修正。
The 2-d effect and the initial energy influence of emitting electrons on space-charge-limiting current in diode are studied by PIC simulation and theoretical analysis.
配有单色 器、球差校正 器、HR GIF的新一代场发射枪透射电子显微镜可提供亚埃的空间分辨率和亚电子伏特的能量分辨率,为研究物质的原子 电子结构提供了可靠的保证。
A sub-angstrom spatial resolution and sub-eV energy resolution can be reached in new type of FEG TEM in combination with monochromator, C_S corrector and HR-GIF.
配有单色 器、球差校正 器、HR GIF的新一代场发射枪透射电子显微镜可提供亚埃的空间分辨率和亚电子伏特的能量分辨率,为研究物质的原子 电子结构提供了可靠的保证。
A sub-angstrom spatial resolution and sub-eV energy resolution can be reached in new type of FEG TEM in combination with monochromator, C_S corrector and HR-GIF.
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