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free electron

英 [friː ɪˈlektrɒn] 美 [friː ɪˈlektrɑːn]
医学化学
free electron
自由电子

英英释义

noun

  1. electron that is not attached to an atom or ion or molecule but is free to move under the influence of an electric field

    1. But we see if we have a free electron, as we do in this dotted line here, that's going to be a higher energy that's less stable.
      但是我们看到如果，我们有一个自由电子，就像虚线所示那样，那将会是一个较高的，不够稳定的能量。
    2. It is a free electron so there is no potential energy to be accounted for.
      对于自由电子，因此没有什么势能。
    3. This paper deals with the statistical properties about two dimensional photon gas and free electron gas.
      讨论了二维光子气体和自由电子气体的统计性质。
    4. Frequency-resolved measurement of the emission from a Eaman free electron laser under superradiation condition by a microwave grating spectrometer are presented.
      本文报道了利用微波栅摄谱仪测量在超辐射工作条件下的喇曼自由电子激光器辐射谱的初步结果。
    5. Dynamic study on sideband instability in a planar free electron laser has been conducted, and the method dealing with sideband instabilities in planar and free electron lasers are presented.
      本文对平面形自由电子激光器中的边带不稳定性进行了动力学研究。
    6. It is shown that an electron passing through a walking wave magnetic field can also produce spontaneous radiation, so, the walking wave magnetic field can serve as a wiggler of free electron laser.
      本文采用行波磁场作为周期性磁场，通过讨论可以看出，当电子通过这种磁场时将产生自发辐射，说明该磁场能作为自由电子激光器的摆动器。
    7. The operation of a free electron laser can be explained without reference to quantum mechanics.
      自由电子激光器的操作完全可以被解释清楚而无需求助于量子力学。
    8. The greater the number of the free electron in a material is, the better its conductivity.
      材料的自由电子数量越多，该材料的导电性就越好。
    9. The efficiency enhancement mechanism of far infrared free electron laser ( FIR FEL) with a reverse tapering waveguide is theoretically investigated.
      提出使用渐变间隙的矩形波导提高远红外自由电子激光器效率的新思想。
    10. Several european key laboratories engaging in free electron laser and their developments are introduced generally.
      介绍了欧洲从事自由电子激光研究的几个重要实验室的概况和研究进展。
    11. Free electron molecular orbital model
      自由电子分子轨道模型
    12. This offers the prospect of compact setup for high energy physics and free electron lasers with unprecedented brilliance.
      这将有助于得到更小的高能物理实验装置以及超亮的自由电子激光器。
    13. Imaging theory and development of THz free electron lasers;
      给出了双波荡器自由电子激光器的通用理论。
    14. The tunability of millimeter wave free electron laser was observed.
      观察到了毫米波自由电子激光器的调谐特性。
    15. The spontaneous emission spectrum of a novel wiggler free electron laser
      一种新型摆动器自由电子激光的自发辐射谱
    16. The smallest unit that supports electron flow in a semiconductor material; a hole in P-type silicon or a free electron in N-type silicon.
      在半导体材料中维持电流的最小单元，在P型硅中是空穴，在N型硅中是自由电子。
    17. The free electron gas is a kind of representative quantum Fermi gas.
      金属的自由电子气是一种典型的量子费米气体。
    18. This represents the free electron.
      这就是自由电子。
    19. This property have an effect on performance of the free electron laser.
      这种摆动性质影响着自由电子激光的特性。
    20. This paper gives a quantum mechanical analysis of the interaction between the electromagnetic field and the electron beam of free electron stimulated emission devices or linear electron accelerator.
      本文对自由电子受激辐射器件与电子直线加速器中的电子注与电磁场的相互作用进行了量子力学分析，认为电子注的电子结构应由束缚电子对组成。
    21. In this article, the motion of electrons in free electron lasers with variable parameter wigglers is discussed.
      本文讨论了变参数自由电子激光器中电子的运动，指出部分电子的轨道是非周期性，随机型的。
    22. Superconducting accelerator and photocathode injector is the first choice for high average power free electron laser study.
      超导加速器技术和光阴极技术在高平均功率自由电子激光的研究中占有重要地位。
    23. A design of an over-all experiment of Raman free electron laser with an optical klystron configuration is put forward.
      本文提出光学速调管结构喇曼自由电子激光器总体实验设计。
    24. A half quantity explanation is proposed according to the "one dimension free electron model" theory.
      根据“自由电子气”模型给出了一个半定量的表达式解释了这一关系。
    25. A suggestion is proposed to treat the radiation transmission of free electron lasers in terms of waveguide laser theory.
      本文提出新的建议，用波导激光理论来处理自由电子激光辐射的传输问题。
    26. This paper introduces a practical design of a Bragg cavity that can be used in Raman Free Electron Lasers.
      本文介绍一种可用于喇曼自由电子激光器的布拉格腔实用化设计。
    27. Free electron Positron and antihydrogen
      正电子和反氢
    28. The gain and efficiency improvement of free electron laser by an optical klystron configuration has been studied by one dimensional single-particle model.
      采用一维单粒子模型对光学速调管结构目由电子激光器增益和效率的提高进行了研究。
    29. Also explained are the characteristics of sideband instability in planar free electron lasers.
      提供了一种处理平面形和螺旋形自由电子激光边带不稳定性的方法，同时解释了平面形自由电子激光边带不稳定性的特点。
    30. A method for direct measuring the frequency of a free electron laser using AC Josephson effect is presented.
      提出一种利用交流约瑟夫森效应直接测量自由电子激光频率的方法。