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Simulink Models For The Designing of Double Polepiece Magnetic Lenses | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 24, Issue 6, 2013, Pages 75-88 | ||
| Author | ||
| Ali Hadi Hassan Al- Batat | ||
| Abstract | ||
| A computational investigation for the objective aberrations of a double pole piece magnetic lens is carried out. A new mathematical expression for approximating the magnetic field is presented. The interest point for the suggested formula comes from its correlation characteristic to collect geometrical and physical design parameters. The proposed approximated equation is regarded to be a target function for the synthesis procedure. Consequently, the spherical and chromatic aberration coefficient is evaluated. The results have points out that several design considerations must be followed in sense of the adopted target function. In addition an excellent correspondence between the proposed values and its output counterpart is achieved. | ||
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