Download or read book Electron Impact Cross Sections and Rates for Excitation and Ionization of Hydrogen and Hydrogenic Ions written by Lawrence B. Golden and published by . This book was released on 1971 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semi-empirical electron impact cross sections and rates for excitation transitions of the type n to n' and for ionization from all levels with principal quantum number n
Download or read book Updated Excitation and Ionization Cross Sections for Electron Impact on Atomic Oxygen written by Russ R. Laher and published by . This book was released on 1988 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electron Impact Cross Sections written by and published by DIANE Publishing. This book was released on with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ionization of Hydrogen and of Hydrogenic Positive Ions by Electron Impact written by M. R. H. Rudge and published by . This book was released on 1966 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calculations of the ionization cross sections of hydrogen and of hydrogenic positive ions are described in which the initial state is either the ground or the excited 2s state. The first procedures used are the Born (ii) and Born-exchange approximations. These results are compared with other theoretical calculations and with experimental data. It is seen that for the case of ionization of hydrogen from its ground state, none of the theoretical results is in good agreement with the experimental data. A certain defect of the theory is then corrected by adopting a third procedure for this case, in which an angle-dependent Coulomb potential is used in the description of the final state of the e-H ionization problem. It is then found that, despite the sounder theoretical footing of this latter calculation, no improved agreement with experimental data is obtained except in the near threshold region. Convenient formulae are presented which represent the best data for the ionization cross sections and the associated reaction rates for the case of an initial Maxwellian distribution of velocities. (Author).
Download or read book Estimation of Electron Impact Excitation Cross Sections of Molecular Hydrogen written by George M. Prok and published by . This book was released on 1967 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Excitation and Ionization of Hydrogen Atoms by Electron Impact written by A. E. Kingston and published by . This book was released on 1964 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The classical cross sections of Gryzinski for the excitation and ionization of atomic hydrogen by electron impacts are compared with existing experimental and theoretical cross sections. For excitation from the ground to the first excited states of atomic hydrogen, the classical cross section reproduces the experimental cross section to within a factor of 2 from the excitation threshold to an electron impact energy of about 20 atomic units. For ionization from the ground state of atomic hydrogen, the classical cross section reproduces the experimental cross section to within a factor of 2 from 0.02 atomic units above threshold to about 400 atomic units. A comparison of the classical cross sections with all available Born-approximation cross sections shows that although the classical cross sections are always smaller, they agree quite well with the Born cross sections except at very high energies. However for energies less than 100 atomic units the classical cross sections always agree with the Born cross sections to better than a factor of three. A comparison of experimental 'electron-ion' recombination coefficients and theoretical recombination coefficients, obtained by using the classical cross sections, suggests that at low energies, the classical cross sections for transitions between low excited levels cannot be in error by more than a factor of 2. (Author).
Download or read book Atomic and Molecular Collision Cross Sections of Interest in Controlled Thermonuclear Research written by C. F. Barnett and published by . This book was released on 1961 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBS Special Publication written by and published by . This book was released on 1976 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cross Sections and Rate Coefficients for the Electron impact Excitation of He like Ions written by Leonid Abramovich Vaĭnshteĭn and published by . This book was released on 1992 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Updated Excitation and Ionization Cross Sections for Electron Impact on Atomic Oxygen written by Russ R. Laher and published by . This book was released on 1990 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Approximate Cross Sections and Rate Coefficients for Ionization Excitation and Recombination of Hydrogenic Ions and Atoms written by R. Mewe and published by . This book was released on 1970 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Excitation Ionization and Electron Capture Cross Sections of Atomic Hydrogen in Collisions with Multiply Charged Ions written by N. Toshima and published by . This book was released on 1995 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Approximate Cross Sections and Rate Coefficients for Ionization Excitation and Recombination of Hydrogenic Ions and Atoms written by R. Mewe and published by . This book was released on 1970 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurements of Cross Sections and Resonance Structures Following Electron impact Excitation written by and published by . This book was released on 1994 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report high-resolution measurements of electron impact excitation and ionization cross sections for the Na-like ions Kr{sup 25+} and Xe{sup 43+}. Ions with ionization states centered on the Na-like configurations were produced in an electron beam ion trap (EBIT) using electrons with energies below the L shell ionization thresholds. The Na-like ions were exposed to an electron beam with an energy between 3 and 7 keV. The Na- and Ne-like ions were then extracted and their intensities measured as a function of the electron beam energy. Theoretical ionization cross sections were calculated using relativistic distorted wave methods. Complex resonance structures that appear in the computed cross sections are observed in the experimental results. These results are the first experimental observation of resonant-excitation-double-autoionization (REDA) in highly charged high-Z ions.
Download or read book Electron impact excitation Cross Sections of Hydrogenlike Ions written by V. I. Fisher and published by . This book was released on 1997 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cross Sections and Rates for the Excitation of Complex Ions by Electron Impact written by and published by . This book was released on 1975 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Excitation and Ionization of Hydrogen Atoms and Hydrogen like Ions by Electron Impact written by A.J. Taylor-Buzeman and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
