A systematic study of secondary electron collaborative the RF (ICP) plasma surface modification of PET film and its surf......

栅网是条纹相机等电子光学仪器的重要组成部件。通过使用有限差分法对栅网的丝径、网孔进行精细建模, 分析了栅网对均匀电场的扰动......

A collector with high perveance,efficient recu-peration,and low secondary emissions is required for the 450-keV electron......