Автор |
U F Gianola |
Дата выпуска |
1952-08-01 |
dc.description |
Examination of the requirements for reducing the spherical aberration of an electron lens by modifying the field shows that the hypothetical lens field H(0, z) = γ/z<sup>n</sup> should have small aberrationsIt is shown that the properties of a certain class of this general field configuration can be described in terms of an exact analysis In particular, the electron optical properties of the γ/z<sup>2</sup> field are described in detail.The γ/z<sup>2</sup> field is found to have small aberrations, but practical conditions limit appreciable improvement in resolving power The characteristics of the γ/z<sup>3</sup> field are also examined and are found to give little further advantage. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Investigation of Magnetic Lenses having the Axial Field H(0, z) = γ/z<sup>n</sup> |
Тип |
paper |
DOI |
10.1088/0370-1301/65/8/309 |
Print ISSN |
0370-1301 |
Журнал |
Proceedings of the Physical Society. Section B |
Том |
65 |
Первая страница |
597 |
Последняя страница |
603 |
Аффилиация |
U F Gianola; Department of Electron Physics, University of Birmingham |
Выпуск |
8 |