Journal ArticleDOI
Characteristics of the Trochoidal Electron Monochromator
A. Stamatovic,G. J. Schulz +1 more
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TLDR
In this paper, an electron monochromator for use in an axial magnetic field is described, where the electrons are injected parallel to the magnetic field and an electric field is applied in a perpendicular direction.Abstract:
An electron monochromator for use in an axial magnetic field is described. Electrons are injected parallel to the magnetic field and an electric field is applied in a perpendicular direction. The electrons thus describe trochoids and drift in a direction perpendicular to both the electric and magnetic fields and disperse according to their initial velocities. An electron energy width at half‐maximum of 0.020 eV can be obtained, with a transmitted current of about 10−9 A.read more
Citations
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Journal ArticleDOI
Temporary Anion States of Polyatomic Hydrocarbons
Kenneth D. Jordan,Paul Burrow +1 more
TL;DR: The experimental methods used to characterize molecular anions differ substantially depending on the stability of the species as mentioned in this paper, and the application of laser spectroscopic methods, discussed elsewhere in this issue, is generally limited to anions possessing hound electronic ground states or to those with lifetimes against autodetachment of the electron in excess of a few microseconds.
Journal ArticleDOI
Study of triplet states and short-lived negative ions by means of electron impact spectroscopy
TL;DR: The trochoidal electron spectrometer as discussed by the authors is a recently developed type of instrument, capable of measuring electron transmission spectra and also inelastic cross sections (a superposition of 0° and 180° scattering).
Journal ArticleDOI
Temporary negative ions and electron affinities of benzene and N‐heterocyclic molecules: pyridine, pyridazine, pyrimidine, pyrazine, and s‐triazine
I. Nenner,G. J. Schulz +1 more
TL;DR: In this paper, the electron affinities for benzene, pyridine, diazines, pyrazine, and s−triazine were determined from the present experiment (−1.15 eV and −0.62 eV for C5H5N).
Journal ArticleDOI
Atomic negative-ion resonances
Stephen Buckman,Charles W. Clark +1 more
TL;DR: A review of experimental and theoretical approaches to the study of negative-ion resonances is given together with a consideration of the various schemes that are used for their classification in this paper, where the authors also highlight regularities in their behavior both within groups of the periodic table and along isoionic sequences.
Journal ArticleDOI
Measurement of total cross sections for electron recombination with NO+ and O2 + using ion storage techniques
Fred L. Walls,G. H. Dunn +1 more
TL;DR: In this article, the total cross section as a function of electron energy for recombination of electrons with room temperature NO+ has been measured with a trapped ion technique with an energy resolution between 0.045 and 0.120 eV.
References
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Book
Theory and Design of Electron Beams
TL;DR: Electron Beam Systems MEBS is run jointly by Eric Munro John Rouse and Haoning Liu who jointly have over 80 years of experience in the design of charged particle optics devices and systems.
Journal ArticleDOI
Ionization in a Mass Spectrometer by Monoenergetic Electrons
TL;DR: In this paper, a retarding potential difference (RPD) method was used to obtain ionization probability curves with essentially monoenergetic electrons, where the difference in the ionization produced in the two cases is ionization by those electrons with a small energy spread selected from the original distribution.
Journal ArticleDOI
An improved electrostatic electron selector
Paul Marmet,Larkin Kerwin +1 more
TL;DR: In this article, a cylindrical electrostatic electron selector is described which provides a 10−7 ampere beam of electrons whose energy may be varied from 0 to 50'ev and whose energy spread is less than 100'mv.