Projective Properties for Symmetrical Magnetic Lens by Using Exponential Model

Main Article Content

I. A. Mohammed

Abstract

A computational investigation is carried out in the field of charged particle optics with the aid of the numerical analysis methods. The work is concerned with the design of symmetrical double pole piece magnetic lens.  The axial magnetic flux density distribution is determined by using exponential model, from which the paraxial-ray equation is solved to obtain the trajectory of particles that satisfy the suggested exponential model.  From the knowledge of the first and second derivatives of axial potential distribution, the optical properties such as the focal length and aberration coefficients (radial distortion coefficient and spiral distortion coefficient) are determined.  Finally, the pole piece profiles capable of producing the assign were determined.

Article Details

How to Cite
MOHAMMED, I. A.. Projective Properties for Symmetrical Magnetic Lens by Using Exponential Model. Ibn AL- Haitham Journal For Pure and Applied Science, [S.l.], v. 24, n. 2, may 2017. ISSN 2521-3407. Available at: <http://jih.uobaghdad.edu.iq/index.php/j/article/view/792>. Date accessed: 18 sep. 2019.
Section
physics