1.
Gaafer FN. Minimization of the spherical aberration coefficients of composed of quadrupole and octupole lenses using the rectangular field distribution model. QJPS [Internet]. 2017Jul.19 [cited 2024May2];19(3):155-67. Available from: https://journalsc.qu.edu.iq/index.php/JOPS/article/view/152