An electrostatic lens system which compensates for chromatic aberration has been tested in an electron spectrometer. The results indicate that this is suitable comparisons of peak intensities electron-impact spectra. Relative vibrational progressions belong to a single electronic transition have studied N2, CO, and NH3 found be nearly independent the scattering angle. Electron-impact spectra reported helium, nitrogen, oxygen, argon, nitric oxide, nitrous ammonia, water vapor, carbon dioxide,...

This paper presents a survey of the factors governing performance and operation high temperature subsupersonic metal atom beam sources. After an initial statement requirements placed on such sources section is presented which considers determining atomic intensities profiles. The materials used in source construction discusses choice crucible material, so doing table most suitable materials, hazard assessments, other information for all those elements can be vaporized. Two further parts this...

The electron-impact spectrum of ethylene has been determined using a high-resolution electron spectrometer. intensity distribution obtained at 200-V kinetic energies agrees well with previous measurements made 33-kV energies, and ultraviolet-absorption except in the region 7.45-V transition. This discrepancy is attributed to quadrupole transition which occurs this region.

The results obtained in a previous paper for generalized oscillator strengths potassium vapour have been re-examined. angular resolution of the crossed-beam electron spectrometer used measurements has improved and correction applied residual finite instrument. In addition to potassium, energy loss spectra sodium at 40·5, 50·5, 67·5 100·5 ev incident kinetic energies obtained. Absolute derived by normalizing resonance transition optical strength. For reduced matrix element (4 2S∥r2∥5...

The study of metallic nanoparticles has a long tradition in linear and nonlinear optics [1], with current emphasis on the ultrafast dynamics, size, shape collective effects their optical response [2-6]. Nanoparticles also represent ultimate confined geometry:high surface-to-volume ratios lead to local field enhancements range dramatic modifications material's properties phase diagram [7-9]. Confined gallium become subject special interest as light-induced structural transition recently...

The ejected-electron spectrum of lithium vapour has been observed at 75 degrees with respect to an incident electron beam 80 eV, 200 eV and 500 kinetic energy. A total 39 autoionising levels Li I are in the energy range 56 65 eV. Comparison is made experimental theoretical data.

The ejected-electron spectrum of sodium vapour has been observed at angles up to 120 degrees C with respect an incident electron beam kinetic energy 35 400 eV. Comparisons are made ultraviolet absorption data and spectra obtained by proton impact excitation.

The vacuum ultra-violet photoelectron spectrum of O2(3Σ–g) and O2(1Δg) obtained using He I radiation, is presented. A phase-sensitive detection technique, which enhances the relative signals from transient species present in a discharge system, described discussed. two additional new states O+2 are compared with identified as 2Δg 2Φu aid restricted open shell INDO-SCF calculations including effect configuration interaction. energies ∼6.59 7.72 eV respectively above that X2Πg ionic state....

The ejected-electron spectrum of magnesium vapour following autoionisation two-electron excited states the type 1s22s22p63pnl is presented for first time. Ejected electrons were energy analysed at 75 degrees to direction an incident electron beam 17 500 eV. 46 lines are reported in range 0.5 eV 4.5 eV, which 40 have been assigned eight series. Comparisons made with ultraviolet observations and theoretical calculations.

Electron-impact spectra of mercury vapor have been investigated at incident electron energies between 50 and 300 eV. An intensity anomaly (expected from previous studies atomic spectra) has observed in the 61S0 → m1P1 series due to a perturbation by 6p′ 1P state. Relative cross sections oscillator strengths calculated data eV zero scattering angle.

Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Neville Jonathan, David J. Smith, Kevin Ross; High‐Resolution Vacuum Ultraviolet Photoelectron Spectroscopy of Transient Species: O2 (1Δg). Chem. Phys. 1 November 1970; 53 (9): 3758–3759. https://doi.org/10.1063/1.1674564 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers...

The ejected-electron spectrum of cadmium vapour has been observed at angles up to 110 degrees with respect an incident electron beam kinetic energy 15 400 eV under high-resolution conditions. Comparisons are made earlier spectra, ultraviolet absorption measurements and theoretical calculations. is found contain some lines which not in optical studies. Angular distributions exhibit pronounced maxima minima a number cases.

A total of 66 autoionising states Rb I have been observed between 15 and 21 eV excited-state energy, excitation being by electron impact at kinetic energies 27, 40, 100 400 eV. Of the states, 40 reported in ultraviolet absorption experiments. The remaining 26 do not appear any previous data. Spectra are presented for electrons ejected an angle 75 degrees with respect to incident beam.

The ejected-electron spectrum of potassium vapour has been observed at 50 degrees and 75 with respect to an incident-electron beam 30 400 eV incident energy. Ejected-electron energies are in the range 4 21.5 eV. A total 84 autoionising states K I reported, which 49 have identified by comparison ultraviolet absorption data. Some remaining levels assigned tentatively using available theoretical In addition, three belonging II autoionisation identified.

The ejected-electron spectrum of calcium vapour between 12.8 and 28.1 eV has been observed at 75 degrees with respect to an incident electron beam 30 500 energy. A total 165 lines are reported, corresponding excitation both Ca I II levels. results compared photoabsorption measurements high-energy impact data.

By using synchrotron radiation to excite calcium atoms in the 3p-3d resonance region, excited ions are generated. In first measurement of this kind, we have measured polarization fluorescent photons which result from decay these ions, coincidence with corresponding angle-resolved photoejected electrons. combining angular distribution parameter for same electrons, a separate experiment, able calculate specific case, within assumption LS coupling, ratio dipole amplitudes outgoing waves and...

The ejected-electron spectrum of strontium vapour between 10.1 and 21.3 eV has been observed at 75 degrees to an incident energy beam 23.5, 38, 50, 75, 150 500 energy. Comparison is made with the earlier measurements Schmitz et al. (1976) results which have considerably extended.

The ejected-electron spectrum of caesium vapour has been observed at 75 degrees with respect to an incident electron beam 30 400 eV energy. A total 63 autoionising states, between 8.3 and 13.4 energy, are reported. Of the 37 have identified by comparison ultraviolet absorption data.

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Studies of generalized oscillator strengths as a function incident electron kinetic energy within the range 33·5-100·5 eV have been made for rubidium and caesium using crossed-beam high-resolution energy-loss spectrometer. Absolute derived by normalizing resonance transition to optical strength. For reduced matrix elements (5 2Sparallelr2parallel6 2S) 2Sparallelr2parallel7 were found be 44 A.U. ±25% 15 ±40%, respectively, probabilities A(4 2D -> 5 A(5 204 s-1 ±10% less than 24 s-1,...