Simulation calculation indicates that secondary electron can be controlled well by electrostatic field combined with Faradaycylinder.
模拟计算表明，在法拉第圆筒的基础上加上电场抑制，能很好地抑制二次电子流的产生。
2
The cylinder magnet for Faraday rotator is analyzed and calculated theoretically, which results can give concrete instructions for the design of optical isolator.