用数值逼近方法研究组合电子透镜的电势

Using Numerical-approaching Method to Study the Potential of Assembled Electron Lens

应用数值逼近法研究组合电子透镜的电势 ,并能够计算出通过电子透镜的不同电子路径焦距的微小变化。

Using numerical-approaching method to study the potential of assembled electron lens,which can work out tiny changes of focus through different routes of electron lens.Compared with the precision solution,the error is less than1%.