Starting from the independent electron model, the effective potential describing the ejected electron - residual target interaction is modified so that the single-ionization energy of each electron is half the double-ionization energy of helium. Further, the correlation of the ejected electrons is ...
The ground-state energy of the helium atom in a plasma is calculated by the variational method with the static screened Coulomb potential as the interparticle potential. This is used to calculate the ionization energy of the helium atom as a function of the screening parameter. The critical value...
A second result of the present investigation is that more convincing evidence is given for the occurrence of neutralization during the violent collision by a non-Auger process. It is probable that this process, as well as the ionization process, results from an interaction between the helium ...
The optical emission of N 2 +(B 2Σ u + → X 2Σ g +) induced by energy transfer (Penning ionization) to nitrogen from 2 3S metastable helium atoms (He *) ... T Ueno,Y Hatano - 《Chemical Physics Letters》 被引量: 33发表: 1976年 Ionization of helium by fast, highly charged ...
Of the following which has the highest first ionization energy? Argon Neon Helium Krypton What is the electron configuration for boron? What is the general trend in ionization energy as you move down a column in the periodic table? What is an electron configuration of neptunium?
Define Ionization energy. Ionization energy synonyms, Ionization energy pronunciation, Ionization energy translation, English dictionary definition of Ionization energy. n. The energy required to remove an electron completely from its atom. American Heri
Moreover, we report magic numbers in the mass spectrum observed at the electron energy of70eV. The apparatus used for the present measurements is a hemispherical electron monochromator combined with a quadrupole mass spectrometer. Our experiment demonstrates that helium clusters are not only exclusively...
In this article we survey some new theoretical results on (e, 2e) excitation — ionization and excitation — autoionization of ground state helium. A fuller account may be found in references [1–3]. Our interest lies in the high energy regime and in geometries for which the ejected ...
We calculate analytically the cross sections for ionization of the helium atom with absorption and scattering of high-energy photons. The electrons are assumed to be moving in the Coulomb field of the nucleus. The electron-electron interaction is taken into account in the first order of perturbatio...
Photon energy dependence of ionization-excitation in helium at medium energiestemperaturecalibrationlead nitratemagic-angle spinningWe have measured the photoionization-excitation-to-photoionization ratio for (n = 2 - 6) at several photon energies from 90 to 900 eV. By extrapolating these values we ...