Focusing properties of a broad-range sector spectrometer with a 1r-magnetic field
β Scribed by J. Kayser; H. Mayer
- Publisher
- Elsevier Science
- Year
- 1980
- Weight
- 304 KB
- Volume
- 174
- Category
- Article
- ISSN
- 0029-554X
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π SIMILAR VOLUMES
## Abstract A new and simple ion source for thermospray on a sector field mass spectrometer has been designed, which is based on two sets of electrostatic quadrupole lenses to focus the divergent ion beam that emanates from the extraction cone into the ion source region. To illustrate the performan
The cathode lens is an electron optical element in an emission electron microscope accelerating electrons from the sample, which serves as a source for a beam of electrons. Special application consists in using the cathode lens first for retardation of an illuminating electron beam and then for acce