...厚度 (Thickness) 半高 (Aperture radius) 玻璃材质 (Glass materials) 近轴参数 (Paraxial parameters) 光瞳半径 (Beam radius) F/#
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laser beam radius 激光束半径
Waist beam radius 注腰半径
initial beam radius 初始束流半径
entrance beam radius 入射光束半径
optimized beam radius 最佳电子束半径
effective beam radius 电子束等效尺寸
initial amplitude beam radius 初始束流半径
Radius Ended Beam 半圆端天平
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；
Experimental research shows that laser induced damage thresholds (LIDT) are strongly dependent on the beam radius.
实验发现，光学材料的激光损伤阈值对激光光斑大小有强烈的依赖关系。
The damage threshold increased with the beam radius increasing, and decreased with the number of laser pulse increasing.
损伤阈值随光斑半径的增大而增大，随脉冲数目的增加而变小。
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