The Effect of the Geometrical Parameters on the Characteristics of the Saddle Magnetic Deflector

Al-Shamma, Marwa T.; Al-Khashab, Muna A.

doi:10.33899/rjs.2018.159389

	The Effect of the Geometrical Parameters on the Characteristics of the Saddle Magnetic Deflector
Rafidain Journal of Science
Article 6, Volume 27, Issue 3, 2018, Pages 47-56 PDF (0 K)
DOI: 10.33899/rjs.2018.159389
Authors
Marwa T. Al-Shamma^* ¹; Muna A. Al-Khashab²
¹Department of Physicsو College of Scienceو University of Mosul
²Department of Physics , College of Science, University of Mosul
Abstract
In this research work the saddle magnetic deflector has been designed, and studied the effect of the geometrical parameters on the characteristics of the magnetic deflector by using one of the simulation programs known as Electron Optical Design (EOD), which is written in Compaq Visual Fortran 6.6 uses the finite elements method. It has been found that the variations of the axial bore diameter and length of deflector have a great effect on its properties as well as the amount of magnetic deflections. The effect of variation of the thickness of deflector was very small. The effect of the angle of the deflector and its excitation was also studied and found that there is a direct effect on the value of a magnetic deflection only. .
Keywords
Magnetic deflector design; Scanning coils; Saddle magnetic deflector; Scanning electron microscope; Magnetic deflection; Magnetic deflector aberrations

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