Investigation of the optical properties of the achromatic quadrupole lens by using the rectangular potential distribution model
By: Husayn, Adi Ali; al-Mudarris, Fatin Abd al-Jalil; Jafar, Fatimah Nafi. Um-Salama Science Journal. Vol. 16, no. 2 (2009), pp.386-393, 8 p.
Subjects: Electron optics; Lenses