THE CHANGE RATE OF ENERGY OF THE TEST ELECTRON CAUSED BY PLASMA TURBULENCE
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摘要: 在给定的湍流扩散系数的形式下,由准线性的扩散方程解出了在湍流等离子体中运动的试验电子束的分布函数。利用所得的分布函数和动力学方程,定义、并导出了两种不同形式的电子能量变率:一种是具有一定速度的电子的能量变率dε/dt;另一种是各种不同速度的电子的平均能量变率dε/dt。将所得结果与过去这方面的公式作了对比和讨论,结果表明本文所给出的能量变率表达式更有普遍性,过去采用的公式只是本文结果的特例。Abstract: The distribution function of the electron beam moving in the turbulent plasma is given for a definite diffusion coefficient.Using this distribution function and the kinetic equation,we have developed two formulas of change rate of the electron energy.One is the change rate of energy of the electrons with definite velocity de/dt,and the other is the change rate of mean electron energy de/dt.These formulas are more general than the previous formulas used in this field.
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