A Hyperbolic Potential Field Model for Designing an Einzel Lens of Low Aberrations
An analytical model in the form of a hyperbolic function has been suggested for the axial potential distribution of an electrostatic einzel lens. With the aid of this hyperbolic model the relative optical parameters have been computed and investigated in detail as a function of the electrodes volta...
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| Format: | Article |
| Language: | English |
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University of Baghdad
2002-12-01
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| Series: | Iraqi Journal of Physics |
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| Online Access: | https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/955 |
| _version_ | 1797871234643394560 |
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| author | Sabah M. Juma |
| author_facet | Sabah M. Juma |
| author_sort | Sabah M. Juma |
| collection | DOAJ |
| description |
An analytical model in the form of a hyperbolic function has been suggested for the axial potential distribution of an electrostatic einzel lens. With the aid of this hyperbolic model the relative optical parameters have been computed and investigated in detail as a function of the electrodes voltage ratio for various trajectories of an accelerated charged-particles beam. The electrodes voltage ratio covered a wide range where the lens may be operated at accelerating and decelerating modes. The results have shown that the proposed hyperbolic field has the advantages of producing low aberrations under various magnification conditions and operational modes. The electrodes profile and their three-dimensional diagram have been determined which showed the possibility of being practically realized.
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| first_indexed | 2024-04-10T00:40:56Z |
| format | Article |
| id | doaj.art-ab6fad0210ba4f7a909f21bea3c59d11 |
| institution | Directory Open Access Journal |
| issn | 2070-4003 2664-5548 |
| language | English |
| last_indexed | 2024-04-10T00:40:56Z |
| publishDate | 2002-12-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Iraqi Journal of Physics |
| spelling | doaj.art-ab6fad0210ba4f7a909f21bea3c59d112023-03-14T05:53:08ZengUniversity of BaghdadIraqi Journal of Physics2070-40032664-55482002-12-0111A Hyperbolic Potential Field Model for Designing an Einzel Lens of Low AberrationsSabah M. Juma0Department of Physics, College of Science, University of Baghdad An analytical model in the form of a hyperbolic function has been suggested for the axial potential distribution of an electrostatic einzel lens. With the aid of this hyperbolic model the relative optical parameters have been computed and investigated in detail as a function of the electrodes voltage ratio for various trajectories of an accelerated charged-particles beam. The electrodes voltage ratio covered a wide range where the lens may be operated at accelerating and decelerating modes. The results have shown that the proposed hyperbolic field has the advantages of producing low aberrations under various magnification conditions and operational modes. The electrodes profile and their three-dimensional diagram have been determined which showed the possibility of being practically realized. https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/955Lens |
| spellingShingle | Sabah M. Juma A Hyperbolic Potential Field Model for Designing an Einzel Lens of Low Aberrations Iraqi Journal of Physics Lens |
| title | A Hyperbolic Potential Field Model for Designing an Einzel Lens of Low Aberrations |
| title_full | A Hyperbolic Potential Field Model for Designing an Einzel Lens of Low Aberrations |
| title_fullStr | A Hyperbolic Potential Field Model for Designing an Einzel Lens of Low Aberrations |
| title_full_unstemmed | A Hyperbolic Potential Field Model for Designing an Einzel Lens of Low Aberrations |
| title_short | A Hyperbolic Potential Field Model for Designing an Einzel Lens of Low Aberrations |
| title_sort | hyperbolic potential field model for designing an einzel lens of low aberrations |
| topic | Lens |
| url | https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/955 |
| work_keys_str_mv | AT sabahmjuma ahyperbolicpotentialfieldmodelfordesigninganeinzellensoflowaberrations AT sabahmjuma hyperbolicpotentialfieldmodelfordesigninganeinzellensoflowaberrations |