The Effect of Air Gap Width (S) and the Ratio (P1/D2) on .Minimum Projector Focal Length (Fp)min for the Double Pole-Piece Lens- at Costant Excitation (NI)

The  spherical  double pole-piece  electron  lens i§ depend  on some fact0rs : the-  minimum va}ue-of projector  fo·cal  length (Fp)i:J,Iill  â€¢  the maximum value of  magnetic flux density (Bm) , the total  hal[ width ,(W)  o'f asyriunetrical   clln'e  of  magnetic field  dis...

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Bibliographic Details
Main Author: fl. S. Has n
Format: Article
Language:English
Published: University of Baghdad 2017-09-01
Series:Ibn Al-Haitham Journal for Pure and Applied Sciences
Online Access:https://jih.uobaghdad.edu.iq/index.php/j/article/view/1412