slow-extracted beam

But beam quality of slow axis is easily affected by space burned hole, self-focusing and thermal lens effect, which lead to big slow axis divergent angle under high output power.

然而由于其慢轴方向输出光束质量极易受到空间烧孔、自聚焦、热透镜等效应的影响，致使其在高功率工作条件下，输出的慢轴方向发散角较大。

互联网摘选

Using 3D test particle simulation, the interaction of slow electrons with the combined laser beam in vacuum is investigated.

采用三维测试粒子模拟，研究了电子和组合激光束的相互作用。

互联网摘选