In this thesis, a 3MV ultrahigh-voltage electron microscope (Ultra HVEM) provided by Osaka University with the highest accelerate voltage in the world is employed to get the projection images.

• 本文采用了日本大阪大学提供的具有世界上最高加速电压的3MV超高压透射电子显微镜来对厚样品进行成像。