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The limits of the electron optical parameters of asysmmetric double polepiece magnetic objective lenses
Joint Authors
al-Khashshab, Muna Abd al-Karim
Abbas, Ismail Khalaf
Source
Mu'tah Journal for Research and Studies : Natural and Applied Sciences Series
Issue
Vol. 12, Issue 3 (30 Apr. 1997), pp.167-178, 12 p.
Publisher
Mutah University Deanship of Academic Research
Publication Date
1997-04-30
Country of Publication
Jordan
No. of Pages
12
Main Subjects
Abstract EN
The asymmetrical magentic electron lens is of great importance for the electron microscopes intended for high resolution.
Such lenses are de¬termined not only by its geometric structure and shape parameters but also by the gap width to bore diameter (S/D) of its polepieces.
A sys¬tematic investigation has been carried out for asymmetric objective lenses having different bore diameters.
The results indicate that the upper bore diameter of polepiece lens has considerable effects on the electron optical properties.
The Comparison between the two sets of the family of asymmetric lenses provides good performance, and suggests that the ratio of the lens gap width to the bore diameters of its polepiec¬es (S/ D>l) is obtained, and the limits of the upper bore diameters to the lower ones which equals (D1/D2= 3) are favourable.
American Psychological Association (APA)
al-Khashshab, Muna Abd al-Karim& Abbas, Ismail Khalaf. 1997. The limits of the electron optical parameters of asysmmetric double polepiece magnetic objective lenses. Mu'tah Journal for Research and Studies : Natural and Applied Sciences Series،Vol. 12, no. 3, pp.167-178.
https://search.emarefa.net/detail/BIM-395116
Modern Language Association (MLA)
al-Khashshab, Muna Abd al-Karim& Abbas, Ismail Khalaf. The limits of the electron optical parameters of asysmmetric double polepiece magnetic objective lenses. Mu'tah Journal for Research and Studies : Natural and Applied Sciences Series Vol. 12, no. 3 (Apr. 1997), pp.167-178.
https://search.emarefa.net/detail/BIM-395116
American Medical Association (AMA)
al-Khashshab, Muna Abd al-Karim& Abbas, Ismail Khalaf. The limits of the electron optical parameters of asysmmetric double polepiece magnetic objective lenses. Mu'tah Journal for Research and Studies : Natural and Applied Sciences Series. 1997. Vol. 12, no. 3, pp.167-178.
https://search.emarefa.net/detail/BIM-395116
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 175-178
Record ID
BIM-395116