A method of designing slowly-scanning circuits is described and a new type of deflection coil that can offer a uniform deflecting magnetic field is proposed.
本文叙述了慢扫描电路的设计方法，提出了一种新型偏转线圈结构，它能获得均匀的偏转磁场。
2
The deflecting electric field method we presented has been proved to be valid for inner surface PIII, and can increase retained dose and implant energy greatly.