The results show that the higher is electron density distribution , the effect is more evident . so the gradient effect must be included to measure higher density plasma in experiment 结果表明，在等离子体电子密度分布较高区域，梯度效应明显，指出在实验上测量高密度等离子体密度时必须考虑梯度效应的影响。
The wkb method is used to calculate the amount of reflection coefficient of a plane wave normally ( or obliquely ) incident on a conductive plane covered with inhomogeneous unmagnetized plasmas 用wkb方法给出了垂直入射、斜入射情况下，非磁化不均匀等离子体密度覆盖导体平板的等离子体对不同频率电磁波的反射系数。
These results show the expected increases in solar wind plasma density downstream of the bow - shock boundary , as well as significant solar wind plasma densities within mercury ' s magnetosphere close to the planet 这些调查结果表明，预计增幅在太阳风等离子体密度下游弓激波边界，以及大量的太阳风等离子体密度与水星的磁层接近地球。
The fft inversion method is fit for reconstruction of density distribution with sharp peaks and complex shape . the results of numerical simulations of this method show high inversion accuracy and fast calculation speed 快速傅立叶变换法适合于重建具有陡峭波峰和复杂形状的等离子体密度分布，数值模拟的结果表明该方法具有计算精度高和速度快的特点。
Theoretically , using the theory of mutual effect between laser and plasma , the rule of laser propagating in plasma , and the principle of differential interferometry , the basic model of differential interferometry for plasma density measurement was built 理论上，运用激光与等离子体的相互作用原理、激光在等离子体中的传播规律、以及差分剪切干涉测量技术原理，建立了使用差分干涉技术测量稠密等离子体密度的基本模型。
3 . more , the investigation of wave propagation characteristic in round waveguide filled periodically changeful plasma in density is done , by numerical calculation , to analyze the effect on the propagation characteristic when background plasma density and the amplitude of plasma density change 3 .研究了电磁波在填充密度周期变化等离子体金属圆波导中的传输特性,通过数值计算分些了不同等离子体密度和背景密度情况下对波的传播特性的影响
2 . second , the investigation of wave propagation characteristic in periodically magnetized uniformity plasma is done , in light of numerical calculation , to analyze the effect of additional magnetic field amplitude , background magnetic field and plasma density changing on the propagation characteristic 2 .对电磁波在周期磁化均匀等离子体中的传播特性进行了研究,通过数值计算分析了不同外加磁场幅值,背景磁场以及不同等离子体密度对波传播特性的影响
This paper studies the application of inductively coupled plasma ( icp ) technology to the etching compound semiconductor insb - in film . by means of single probe and double probe , the ion density and electron temperature of chamber ( 30mm and 50mm in height respectively ) under varied process condition were diagnosed . the spatial distribution of the axial position of the two parameters and the varied curve that the two parameters varies with the power and air pressure are obtained 利用单探针和双探针诊断30mm高反应室和50mm高反应室在各种工艺条件下的离子密度和电子温度，得到这两个参数在反应室轴向位置的空间分布、随功率和气压的变化曲线、顶盖接地和反应室体积对它们的影响，结果表明离子密度为10 ~ 8 10 ~ ( 10 ) cm ~ ( - 3 ) ，电子温度在4 10ev之间；当顶盖接地时，该处的等离子体密度明显大于不接地；在同样条件下， 50mm高反应室内的离子密度明显大于30mm高反应室。
The numerical results of the dispersion relation show some nonlinear effects : for a fixed geometry of a waveguid , beam parameters and plasma density , the increment of the modulation parameter may lead to a slight increment of the operating frequency , however , as the modulation parameter increases further , saturation may occur and the dispersion relations are hard to be separated , it is due to the overmodulation of the microwave power , this phenomenon itself belongs to the nonlinear effects 对于一定的波导、电子注参量和等离子体密度值，等离子体调制系数的增加，使工作频率略微升高。但是，随着等离子体调制系数的进一步增加，色散曲线变得彼此之间不可分辨，可以认为是等离子体的过调制导致了栅的饱和。这一现象是非线性的，可见，等离子体栅和调制场中文摘要是非线性关系，等离子体栅是非线性j 。
We combined the cvd technique with the pecvd technique by adding a dc or rf electric field to the reacting region of cvd device , and improved the inputting method of reaction gases , then had executed a diamond film growth system . the advantages of our system are : ( 1 ) reaction power , which can enhance the density of the plasma in the reacting region , is supplied with the heat filament and the dc electric field , or with the heat filament and the rf electric field both of them can be controlled precisely and they are complementary to each other 将热丝cvd技术与pecvd技术相结合，在薄膜的成核和生长阶段分别给反应区再施加一个直流和射频电场，同时改进反应气体的进气方式，制成具有下列两大特点的金刚石薄膜生长系统： ( 1 )反应功率由热丝和直流电场或热丝和射频电场共同提供，两者互相补充，可精确控制，大大提高了反应区的等离子体密度； ( 2 )能精确控制反应气体的分布、流量及流速。
