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聚焦极电位
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  “聚焦极电位”译为未确定词的双语例句
     Influence of focus electrode bias,focus hole size and grid electrode bias on the emission electron beams was discussed.
     分别讨论了聚焦极电位、聚焦极孔径以及栅极电位对发射电子束的影响。
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  相似匹配句对
     Focus
     聚焦
短句来源
     Influence of focus electrode bias,focus hole size and grid electrode bias on the emission electron beams was discussed.
     分别讨论了聚焦电位聚焦孔径以及栅电位对发射电子束的影响。
短句来源
     FOCUS
     投资聚焦
短句来源
     An Expression of Absolute Electrode Potential of Hydrogen Electrode Reaction
     氢电反应绝对电电位的表达式
短句来源
     A STUDY OF THE FLAT-BAND POTENTIAL OF n-InP SEMICONDUCTOR ELECTRODE
     n—InP半导体电平带电位的研究
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A distribution graph of electronic pot ential and track near microtip in FFEA was obtained by finite difference simulat ing three dimensions texture of double gate FFEA.It is clearly a result that ele ctrons focusing effect becomes stronger as the focus electrode bias decreases to w ard the tip potential.If negative electrode bias,we may affirm that almost all e lectrons are repelled by the electronic lens and finally return to the grid elec trode.The potential of grid electrode almost dose not affect on the...

A distribution graph of electronic pot ential and track near microtip in FFEA was obtained by finite difference simulat ing three dimensions texture of double gate FFEA.It is clearly a result that ele ctrons focusing effect becomes stronger as the focus electrode bias decreases to w ard the tip potential.If negative electrode bias,we may affirm that almost all e lectrons are repelled by the electronic lens and finally return to the grid elec trode.The potential of grid electrode almost dose not affect on the track of ele c trons from microtip by the quantum tunneling effect,which can only increase elec tronic amount as voltage based grid become more higher.The electrons being of bi gger shooting angle will be embarrassed as diameter of focus electrode reduce.

采用有限差分法 ,对有聚焦极的垂直双门结构的 FEA进行了轴对称三维模拟计算 ,得到发射微尖附近的电位和电子束运动分布图。分别讨论了聚焦极电位、聚焦孔以及栅极电位对发射的电子束影响。聚焦电位相对栅极越负 ,聚焦作用越强。减小聚焦孔径影响了大的发散角的电子 ,但对聚焦的作用不如电位改变明显。栅极电位基本不影响电子的轨迹 ,仅改变了发射的电子的多少。结论与实验基本一致。

The spatial electric potential distribution and the electron trajectory near the microtips in the double gate focus field emission array (FFEA)were simulated with finite difference technique.Influence of focus electrode bias,focus hole size and grid electrode bias on the emission electron beams was discussed.The simulated results show that the more negative the potential difference between the focus electrode and the grid electrode is,the better the emission electron beam focuses.Reduction of the focus...

The spatial electric potential distribution and the electron trajectory near the microtips in the double gate focus field emission array (FFEA)were simulated with finite difference technique.Influence of focus electrode bias,focus hole size and grid electrode bias on the emission electron beams was discussed.The simulated results show that the more negative the potential difference between the focus electrode and the grid electrode is,the better the emission electron beam focuses.Reduction of the focus hole diameter strongly affects the electrons with large emission angle but its influence on electron focusing is less markedly than the influence of the variations in potential.Bias of the grid electrode affects the number of emission electrons but has little effect on the electron trajectory.The simulated results are in good agreement with the experiment.

采用有限差分法 ,对有聚焦极的垂直双门结构的场发射阵列进行了轴对称三维模拟计算 ,得到发射微尖附近的电位和电子轨迹分布图。分别讨论了聚焦极电位、聚焦极孔径以及栅极电位对发射电子束的影响。聚焦极电位相对栅极越负 ,聚焦作用越强。减小聚焦极孔径对大发散角的电子有影响 ,但对聚焦作用的影响不如改变电位明显。栅极电位基本上不影响电子的轨迹 ,仅改变了发射电子的多少。以上结论与实验基本一致

Three-dimensional structure of double gate focus field emission array is simulated by using finite difference algorithm to obtain the electric field,electron trajectory and electronic potential profile.The results show that changing the potential and diameter of focus electrode,and the space between the grid electrode and focus electrode doesn't affect the electric field seriously,but has strong influence on electron trajectory.The focusing effect disappears when the focus electrode voltage is more than 140V.The...

Three-dimensional structure of double gate focus field emission array is simulated by using finite difference algorithm to obtain the electric field,electron trajectory and electronic potential profile.The results show that changing the potential and diameter of focus electrode,and the space between the grid electrode and focus electrode doesn't affect the electric field seriously,but has strong influence on electron trajectory.The focusing effect disappears when the focus electrode voltage is more than 140V.The electron trajectories become crossed when the focus electrode voltage is less than 30V.The electrons focusing effect becomes stronger as the diameter of focus electrode reduces,but when diameter of focus electrode is reduced to 0.75μm,the focus electrode captures the edge electrons.The electrons focusing effect should be firstly taken into consideration in establishing focus electrode parameters,and the influence of the tip electric field should be also considered.

采用有限差分算法,对双门聚焦结构的场致发射阵列阴极进行了三维模拟计算,得到了锥尖处的电场强度,电子的运动轨迹及电位分布图。结果表明,聚焦极电位、聚焦极孔半径及聚焦极与栅极间距的变化对锥尖电场影响不大,但对电子轨迹影响很大。当聚焦极电位超过140V时,电子束的会聚作用消失;低于-30 V时,电子束轨迹出现交叉。减小聚焦极孔径可以加强电子束的会聚作用,但当其减小至0.75μm时,聚焦极会捕获部分边缘电子。因此在实际确立聚焦极参量时,应主要从聚焦极对电子束轨迹的会聚作用方面考虑,其次再考虑聚焦极对锥尖场强的影响。

 
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