beam radius

基本解释

The relationship between space-charge fields and the beam radius is linear.
而空间电荷产生的束内电场与半径呈线性变化；
Results show that the incidence power, the laser pulse width and the beam radius are main factors effective for ignition characteristics of energetic material.
结果表明：入射功率、脉宽、光束半径是影响含能材料点火特性的主要因素；
In the third chapter, using the second-order momentum of beam radius, the Rayleigh range and beam propagation factor of three different polarized beam arrays are derived.
在第三章中，我们利用光束半径的二阶距定义，推导了三种不同偏振分布光束列阵的瑞利距离和光束传输因子。
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