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 equation of electron motion 电子运动方程(2)
 电子运动方程
 The wall voltage is first expressed by a Fourier series, and an equation of electron motion in AC plasma display cell is then established. 本文采用Fourier级数表示壁电压,建立了等离子体显示单元的电子运动方程。 短句来源 By dividing the electric polarization vector into those in non ionized and ionized media, and by using the equation of electron motion, the refractive index in mixture atmosphere is first derived, and the phase and group velocities are also obtained in this paper. 本文将电极化强度矢量分解为非电离电极化强度矢量与电 离电极化矢量两者之和,并利用电子运动方程,首次推导出非电离与电离混合大气层 的折射指数,并得到了相速与群速。 短句来源
 “equation of electron motion”译为未确定词的双语例句
 Resolving the Lorentz equation of electron motion in the undulator which has a field error, we obtain the change of transverse velocity of electrons. Through a Fourier transformation, we can find the influence of all kinds of field error in undulator on spontaneous spectrum. 在考虑平面型摆动器（Wiggler）场误差ΔB（z）的情况下，求解电子在磁场中运动的洛仑兹（Lorentz）方程，得到场误差对电子横向速度的改变，然后作傅里叶变换即为电子自发辐射谱的改变。 短句来源
 相似匹配句对
 ON THE EQUATION 关于方程ф（x）＝ф（y） 短句来源 ON THE DIOPHANTINE EQUATION 关于方程sum from j=0 to h(x+j)~n=(x+h+1)~n 短句来源 With optimization, the equation of T. 采用最优化计算方法，对T. 短句来源 SOLUTION OF INDEFINITE EQUATION 不定方程x~4+y~4+z~4=ω~2的解 短句来源 Promotion of Counter Matrix Equation 矩阵逆的公式的推广 短句来源

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 equation of electron motion
 The study is based on the inhomogeneous-string equations for the field and the equation of electron motion for the electron transverse momentum.
 The wall voltage is first expressed by a Fourier series, and an equation of electron motion in AC plasma display cell is then established. The expression of firing condition, dielectric constant and electrical conductivity of AC plasma display cell can be derived from the equation's solution. Computed results show that the dielectric constant of a cell increases when the cell discharges most intensively, a new explanation why the cell capacitance increases at the most intensive discharges. It is... The wall voltage is first expressed by a Fourier series, and an equation of electron motion in AC plasma display cell is then established. The expression of firing condition, dielectric constant and electrical conductivity of AC plasma display cell can be derived from the equation's solution. Computed results show that the dielectric constant of a cell increases when the cell discharges most intensively, a new explanation why the cell capacitance increases at the most intensive discharges. It is theoretically proved that the discharge of the cell obeys Paschen's law. Experimental and theoretical values are in good agreement. 本文采用Fourier级数表示壁电压,建立了等离子体显示单元的电子运动方程。由此方程的解导出了等离子体显示单元的电导率、介电常数以及着火条件的表达式。计算表明,当放电最强烈时单元的介电常数增加,从而为放电最强时电容增大提供了新的解释。本文从理论上证明单元放电遵守Paschen定律,理论值和实测值基本一致。 Starting from the elementary physical concept, the Gyro-kinetic formulation, kinetic theory based on the guiding center coordinate system, is studied in this paper. The relativistic equations of electron motion have been derived and the equilibrium Vlasov Equation as well as the linearized Vlasov equaticn formulated in the guiding center coordirate system have been obtained. The method for solving these equations is discussed in detail. 本文从基本概念出发,研究以引导中心坐标系为基础的动力学理论。文中首先导出引导中心坐标系中电子的相对论运动方程,在此基础上,得到引导中心坐标系中的平衡态伏拉索夫方程及线性伏拉索夫方程。文中还讨论了线性伏拉索夫方程的求解问题。 An one and a half dimensional (one space dimension and two velocity components) relativistic electromagnetic cloud-in-cell simulation codeCTC-R, which is suitable for simulating FEL process, has been developed. By using this code the temporal evolution of FEL is simulated and the linear growth rate of unstable spectra (For one simulation the growth rate is 0.07 which is in good agreement with the theoretical data. ) , dispersion rel-ations of coupling of pump waves,the electromagnetic and electrostatic waves... An one and a half dimensional (one space dimension and two velocity components) relativistic electromagnetic cloud-in-cell simulation codeCTC-R, which is suitable for simulating FEL process, has been developed. By using this code the temporal evolution of FEL is simulated and the linear growth rate of unstable spectra (For one simulation the growth rate is 0.07 which is in good agreement with the theoretical data. ) , dispersion rel-ations of coupling of pump waves,the electromagnetic and electrostatic waves are obtained. Other results such as the behaviour of electron distribution function, electrons bunching in phase space, nonlinear saturation and efficiency of energy conversion are also considered. Besides the multi-mod3 particle simulation, a single-mode wave-particle code (SMWPC) is developed. It is based on the simplified single-mode theory which was obtained from equations of electron motion and radiation field derived strictly under one dimension assumption and single-mode approximation. Using this code a 3.459 mm Raman FEL has been simulated. The higher gamma and tapered wiggler of FEL are also simulated. The results show that the efficiency can reach to 48% if the tapered wiggler field and other parameters are properly designed. 为了模拟自由电子激光(FEL),我们研制了一维半(一个空间分量,两个速度分量)相对论电磁粒子云(CIC-R)程序。利用CIC-R数值模拟了自由电于激光的时间发展,得到了不稳定谱的线性增长率(模拟得到的线性增长率为0.07),泵浦(冫皮)、电磁波和静电波耦合的色散关系,电子分布函数的发展变化,相空间电子簇聚,非线性饱和和能量转换效率。除了粒子模拟之外,利用单模理论,经过分析简化,由一维假设和单模近似,严格地导出了辐射场和电子运动的方程,编制了单模波—粒子描述程序(SMWPC)。利用这个程序,对3.459mm的Raman型自由电子激光进行了模拟,并用它研究了高γ和可变Wiggler场的设计。研究表明,合理的Wiggler场和其它参数配合可使效率提高到48％。 << 更多相关文摘
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