关键词: 电子光学, 正则理论, 磁透镜, 几何像差, 色差

Abstract: A powerful technique of integration transformation on eikonals has been applied to Glaser's bell-shaped magnetic lens. Consequently, first-and third-order chromatic aberrations have been analytically derived and numerically calculated. This theoretical research may be helpful for estimating first-and third-order chromatic aberrations in rotationally symmetric magnetic lenses.

Key words: electron optics, canonical theory, magnetic lens, geometrical aberrations, chromatic aberrations