An electrostatically and a magnetically confined electron gun lens system
Focal properties, electron trajectory calculations, and geometries are given for two electron 'gun' lens systems that have a variety of applications in, for example, electron-neutral and electron-ion scattering experiments. One nine-lens system utilizes only electrostatic confinement and i...
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| Veröffentlicht in: | Review of scientific instruments 1988-11, Vol.59 (11), p.2418-2423 |
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| container_end_page | 2423 |
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| container_issue | 11 |
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| container_title | Review of scientific instruments |
| container_volume | 59 |
| creator | Bernius, Mark T. Man, Kin F. Chutjian, Ara |
| description | Focal properties, electron trajectory calculations, and geometries are given for two electron 'gun' lens systems that have a variety of applications in, for example, electron-neutral and electron-ion scattering experiments. One nine-lens system utilizes only electrostatic confinement and is capable of focusing electrons onto a fixed target with extremely small divergence angles, over a range of final energies 1-790 eV. The second gun lens system is a simpler three-lens system suitable for use in a uniform, solenoidal magnetic field. While the focusing properties of such a magnetically confined lens systenm are simpler to deal with, the system does illustrate features of electron extraction and Brillouin flow that have not been suitably emphasized in the literature. |
| doi_str_mv | 10.1063/1.1139920 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0034-6748 |
| ispartof | Review of scientific instruments, 1988-11, Vol.59 (11), p.2418-2423 |
| issn | 0034-6748 1089-7623 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_24909029 |
| source | AIP Digital Archive; NASA Technical Reports Server |
| subjects | Atomic, molecular and charged-particle sources and detectors Charged-particle beam sources and detectors Electronics And Electrical Engineering Exact sciences and technology Instruments, apparatus, components and techniques common to several branches of physics and astronomy Physics |
| title | An electrostatically and a magnetically confined electron gun lens system |
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